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NHP TemBreak PRO User Manual

B model moulded case
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B Model Moulded Case Circuit Breaker
Basic Electronic Trip Unit from 250A up to 1600A
USER MANUAL
NHP Electrical Engineering Products
1300 NHP NHP
AU
0800 NHP NHP
NZ
Version
1.1.0
nhp.com.au
nhp-nz.com

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Summary of Contents for NHP TemBreak PRO

  • Page 1 B Model Moulded Case Circuit Breaker Basic Electronic Trip Unit from 250A up to 1600A USER MANUAL Version 1.1.0 1300 NHP NHP nhp.com.au NHP Electrical Engineering Products 0800 NHP NHP nhp-nz.com...

  • Page 2: Using This Manual

    Appropriate use of NHP / Terasaki products NHP / Terasaki products are intended to be used only for the applications described in the catalogue and technical documentation, which is dedicated to them. If products and components from other manufacturers are used, they must be recommended or approved by NHP or Terasaki.

  • Page 3: Summary Of Changes

    Summary of Changes This section highlights the details of changes made since the previous issue of this document. The versioning convention used to track changes in this document follows the structure Vx.y.z where: x: Major revision, where extensive changes are made which is generally incompatible with the previous version. Such changes may include new products and/or features, or removal of information which is no longer relevant or applicable to the previous version y: Minor revision, where changes made do not change the overall scope of the previous version, but may include additional information which complements or corrects the previous version, or provides additional clarity on an existing topic.

  • Page 4: Table Of Contents

    Product Information LSIG 3P – GF Protection Adjustments (I Part Number Break Down LSIG 4P – NP and GF Protection Adjustments (I Available MCCBs in the TemBreak PRO range Troubleshooting Label Identification Annex A – Dimensions B250_BE & B400_BE Information...

  • Page 5: Introduction

    Introduction This user manual describes the TemBreak PRO B Model Basic Electronic (B_BE) MCCB’s MCCB features and instructions for use, and provides information for commissioning and configuring. Some additional features may require the use of additional products and accessories to achieve full utilization of that feature. Refer the respective User Manual in the TemBreak PRO series for additional information on the respective product.

  • Page 6: Terminology And Abbreviations

    Signed Double Integer datatype (4 bytes or 32 bits in DINT Remote Terminal Unit length) EIPM TemBreak PRO Ethernet/IP Module S or STD Short Time Delay Protection Fixed Thermal and Fixed Magnetic Smart Energy Trip Unit Fixed Thermal and Adjustable Magnetic...

  • Page 7: Product Information

    Product Information Features Electronic overcurrent protection, for general & selectivity applications 3 & 4 Pole Adjustable Long Time (I Base current I is adjustable from 40% - 100% of the nominal rated current I Predefined LSI curves 250A: 8 characteristic curves 400A to 1600A: 10 characteristic curves, Instantaneous only Optional Adjustable Neutral Pole protection (OFF, 50%, 100%)

  • Page 8: Part Number Break Down

    36 kA 25 kA Switch Notice: Not all combinations are possible. Confirm part number combination with NHP for availability. 160AF only For P_SE versions these features are standard and therefore are not added to the end of the part number.

  • Page 9: Available Mccbs In The Tembreak Pro Range

    Product Information Available MCCBs in the TemBreak PRO range Rating Frame Size Short Circuit Break Capacity 1000 1250 1600 2000 2500 3200 (kA) A160E – TF A160E – FF A250E – TM P400E-TM P630E – TM B160E – FF A160F – TF A250F –...

  • Page 10: Label Identification

    Models P, B Ampere Frame 160 – 1000 Certifications Identifies the additional localised certifications of the product, in addition to the international product standard, IEC 60947-2 / AS/NZS IEC 60947-2. For additional certifications please contact NHP. TemBreak B_BE-UM-001-EN – V1.1.0...

  • Page 11: B250_Be & B400_Be Information

    Product Information B250_BE & B400_BE Information Frame / Model Quantity Unit Condition B250P B400P B400R Number of Poles 3, 4 3, 4 3, 4 Nominal current ratings 40, 100, ─ ─ 45°C Trip unit ratings 160, 250 ─ ─ 50°C ─...

  • Page 12: B800_Be Information

    Product Information B800_BE Information Frame / Model Quantity Unit Condition B800N B800H B800G B800P B800R 3 ,4 Number of Poles 3, 4 3, 4 3, 4 3, 4 Nominal current ratings 45°C 630, 800 630, 800 Trip unit ratings 50°C ─...

  • Page 13: B1000_Be & B1250_Be Information

    Product Information B1000_BE & B1250_BE Information Frame / Model Quantity Unit Condition B1000N B1000H B1250N B1250H B1250HL Number of Poles 3, 4 3, 4 3, 4 3, 4 3, 4 Nominal current ratings 45°C 1000 1000 ─ ─ ─ Trip unit ratings 50°C ─...

  • Page 14: B1600_Be Information

    Product Information B1600_BE Information Frame / Model Quantity Unit Condition B1600N B1600HL Number of Poles 3, 4 3, 4 Nominal current ratings 50°C 1600 1600 Trip unit ratings Electrical characteristics Rated maximum operational voltage AC 50/60 Hz ─ ─ Rated insulation voltage Rated impulse withstand voltage (kV) Selectivity category...

  • Page 15: Internal Accessories

    Internal Accessories Internal accessories include Auxiliary and Alarm contacts, Shunt Trip and Undervoltage Trip (UVT) modules, which may be installed under the front cover of the MCCB in various combinations to provide additional functionality and connection with external control circuits. Auxiliary &...

  • Page 16: Shunt Trip

    Internal Accessories Shunt Trip A shunt (normally de-energized) can be installed to trip the MCCB by applying voltage to the shunt coil. Part Number Rated voltage Connection type AC (V) DC (V) T2SH00A10TA ─ Terminal T2SH00A20TA 230…240 ─ Terminal T2SH00A40TA 400…415 ─...

  • Page 17: Plugs And Ports

    Plugs and Ports The B_BE circuit breaker is equipped with specific connectors for factory use only. Port Description B 250 B 400 / 800 / 1000 / 1600 ✓ Test Factory Use Only ─ ✓ Test Factory Use Only ─ TemBreak B_BE-UM-001-EN –...

  • Page 18: Installation

    MCCB and associated accessories. Mounting Angles TemBreak PRO MCCBs may be mounted at any angle without affecting performance. Direction of Power Supply Power supply may be fed in either direction with respect to the MCCB without affecting performance.

  • Page 19: Clearances

    Installation Clearances WARNING: Exposed conductors including terminals at attached busbars must be insulated to avoid possible short-circuit or earth faults due any foreign matter coming into contact with the conductors. Phase to Phase and Earth Interruption of large currents during fault or normal switching operation produces ionised gases and arcing materials which expelled from the vents at the top of the MCCB.
  • Page 20 Installation Insulating Distance When earth metal is installed within proximity of the breakers, the correct insulating distance must be maintained, (refer to Minimum Clearance). This distance is necessary to allow the exhausted arc gases to disperse. This could include the mounting plate or side panel within a switchboard. Minimum Clearance Below illustrates the minimum clearance that must be maintained.

  • Page 21: Internal Accessory Mounting Locations

    Installation Internal Accessory Mounting Locations B250, B400, B800, B1000, B1250 and B1600 frame sizes have different internal mounting locations for auxiliary contacts, alarm contacts, shunts and, UVTs. Left-side and right-side mounting locations are independent and accept unique combinations. For example, shunts and UVTs may only be mounted on the right side, whereas auxiliary and alarm contacts may be mounted on either left or right side.

  • Page 22: B400 Internal Accessories Combination

    Installation B400 internal accessories combination Legend TemBreak B_BE-UM-001-EN – V1.1.0...

  • Page 23: B800 & B1000 Internal Accessories Combination

    Installation B800 & B1000 internal accessories combination Legend TemBreak B_BE-UM-001-EN – V1.1.0...

  • Page 24: B1250 & B1600 Internal Accessories Combination

    Installation B1250 & B1600 internal accessories combination Legend TemBreak B_BE-UM-001-EN – V1.1.0...

  • Page 25: Alarm, Shunt & Uvt Installation

    Installation Alarm, Shunt & UVT Installation The alarm, shunt and UVT have a trip bar that needs to interact with the MCCBs trip mechanism. As such they must be installed in a specific way. Refer to the supplied Installation Instructions for the respective accessories for further detail. Alarm &...

  • Page 26: Shunt & Uvt Installation

    Installation Shunt & UVT installation Action Note Switch the Smart MCCB to the Tripped Position. Open the front cover of the MCCB. Locate the shunt or UVT’s trip bar into the MCCB trip mechanism slot. Position the shunt or UVT into place and click in to secure;...

  • Page 27: Protection Settings

    Protection Settings Trip Curve The TemBreak PRO B_BE electronic trip unit protects against overcurrent and short circuit faults for many types of electrical distribution systems. The P_BE OCR has protective characteristics according to the requirements of the standard AS/NZS IEC 60947-2.

  • Page 28: Pre-Defined Curves

    Protection Settings Pre-Defined Curves The B_BE does not allow full customisation of the LSI protection functions; however, it does allow the election of several pre-defined protection curves, which cover a wide range of applications and industry requirements. Most pre-defined curves also offer adjustment of I to shift the curve along the current (I) axis for better refinement Notice: Pre-defined curves can differ between MCCB models and OCR ratings, refer to...

  • Page 29: Long Time Delay Protection (Ltd)

    Protection Settings Long Time Delay Protection (LTD) The Long Time Delay protection protects against current overloads or surges in power distribution or motor control applications. Long Time Delay protection is an inverse-time protection which includes a thermal image function. Long Time Delay Settings Description Long Time Delay protection threshold (current rating) Long Time Delay (time delay)

  • Page 30: Adjusting T R (Time Delay)

    Protection Settings Long Time Delay (LTD) protection Adjusting t (Time Delay) The t time delay defines the trip time of the long-time delay protection at a referenced current, either as a fixed value or as a multiple of I The t time delay can only be adjusted by selecting a pre-defined curve.

  • Page 31: Short Time Delay Protection (Std)

    Protection Settings Short Time Delay Protection (STD) The short time protection is designed to protect against low level short circuits. Short Time Delay Settings Description (x I Short Time Delay protection threshold (ms) Short Time Delay Adjustment I (Current) The I trip threshold tolerance for STD protection is ±15%.

  • Page 32: Adjusting T Sd (Time Delay)

    Protection Settings Short Time Delay Protection (STD) Adjusting t (Time Delay) The trip time tolerance for short time delay protection is: -20 ms / +50 ms Adjustments to t can only be made by selecting a pre-defined curve and have a fixed time delay, given in seconds. Short Time Delay (s) Pre-defined curve number Rating (I...

  • Page 33: Instantaneous Protection (Inst)

    Protection Settings Instantaneous Protection (INST) Instantaneous protection is designed to protect against high current short circuits. This protection is independent of time and is set as a multiple of I Instantaneous Delay Settings Description (x I Instantaneous protection threshold Adjusting I (Current) The l trip threshold tolerance for instantaneous protection is ±20%.

  • Page 34: Ground/Earth Fault Protection (Gf)

    Protection Settings Ground/Earth Fault Protection (GF) Ground Fault (GF) protection is protection against high strength insulation / earth faults. Ground fault is available for the B400_BEG to B1600_BEG in 3P and 4P MCCBs. GF is independent time protection and fixed at 20% of I Short Time Delay Settings Description = 0.2 x I...

  • Page 35: Neutral Protection (Np)

    Protection Settings Neutral Protection (NP) Neutral protection is available with 4P B_BE MCCBs with Neutral trip unit option added. It is particularly useful when the cross-section of the neutral conductor is reduced in relation to the phase conductors. Neutral protection is based off the standard LTD and STD protection parameter of the main phases. The I and I parameters for the Neutral pole are adjusted according to the set Neutral Coefficient percentage.

  • Page 36: Alarms & Indication

    Alarms & Indication The B_BE OCR provides alarming to indicate trip status and warning. Overload alarm: Provides a warning about current overload which may result in an imminent trip/ Pre-Trip alarm (PTA): Optional on select MCCB models. Provides an early warning for current loading which is approaching the overload trip region of the OCR.

  • Page 37: Pta (Pre-Trip Alarm)

    Alarms & Indication PTA (Pre-Trip Alarm) The Pre-Trip Alarm permits monitoring and early warning of overload conditions prior to an actual LTD trip. The PTA setting is defined by two parameters which define the Pre-trip warning and Pre-trip Alarm zones and thus the behaviour of the PTA contact and status LED: PTA current threshold I : Threshold expressed as a percentage of I and is fixed at 80% x I...

  • Page 38: Connections And Contact Specification

    Alarms & Indication PTA (Pre-Trip Alarm) Connections and contact specification OCR Power supply is connected to control power terminals OP1 (L1) and OP2 (L2/N). The PTA contact is a volt-free contact, which is connected to either via terminals PALc and PALa (B250 model only), or via PALc and PALa lead wires on all other models.

  • Page 39: Commissioning

    Commissioning WARNING: Before applying power to the MCCB for the first time, an initial inspection must be performed. WARNING: Risk of nuisance tripping. Only qualified personnel are to set the protection levels. Failure to respect these instructions may cause death, serious injuries or equipment damage.

  • Page 40: Pre-Defined Curve Selection

    Commissioning Pre-Defined Curve Selection LTD, STD and INST protection is further defined by the selection of a pre-defined curve as selected via the Curve characteristic rotary dial, which is performed as follows. Refer to Protection Settings – Pre-Defined Curves section for further detail on selection of the pre-defined time-current curve. Action Note / Illustration Turn the MCCB to the OFF Position...

  • Page 41: Inst Protection Only Setting

    Commissioning INST Protection Only Setting The B_BE can be configured for INST protection only by selecting the INST only pre-defined time-current curve as follows: Refer to Protection Settings – Instantaneous Protection (INST) section for further detail on setting I Action Note / Illustration Turn the MCCB to the OFF Position Open the transparent flap in order to access Curve...

  • Page 42: Lsig 3P - Gf Protection Adjustments (I G )

    Commissioning LSIG 3P – GF Protection Adjustments (I On the LSIG 3P variant B_BE MCCB, the GF protection is configured by the GF DIP switch, which is used to enable or disable GF protection, and is performed as follows. Refer to Protection Settings –...

  • Page 43: Lsig 4P - Np And Gf Protection Adjustments (I N )

    Commissioning LSIG 4P – NP and GF Protection Adjustments (I On the 4P variant B_BE MCCB, NP protection mode is configured by the NP DIP switches, which is performed as follows. Refer to Neutral Protection (NP) section for further detail on NP protection. Action Note / Illustration Turn the MCCB to the OFF Position...

  • Page 44: Troubleshooting

    Troubleshooting In the event of a problem when using the TemBreak PRO system, this section provides advice on how to resolve issues. Problem description Possible cause Remedial advice Abnormal voltage on load side Excessive wear of contacts Replace MCCB. Foreign matter interfering with...

  • Page 45: Annex A - Dimensions

    Annex A – Dimensions B250P TemBreak B_BE-UM-001-EN – V1.1.0...
  • Page 46 Annex A – Dimensions B250 TemBreak B_BE-UM-001-EN – V1.1.0...

  • Page 47: B400P / R

    Annex A – Dimensions B400P / R TemBreak B_BE-UM-001-EN – V1.1.0...
  • Page 48 Annex A – Dimensions B400P / R TemBreak B_BE-UM-001-EN – V1.1.0...

  • Page 49: B800N / H / G

    Annex A – Dimensions B800N / H / G TemBreak B_BE-UM-001-EN – V1.1.0...
  • Page 50 Annex A – Dimensions B800N / H / G TemBreak B_BE-UM-001-EN – V1.1.0...

  • Page 51: B800P / R

    Annex A – Dimensions B800P / R TemBreak B_BE-UM-001-EN – V1.1.0...
  • Page 52 Annex A – Dimensions B800P / R TemBreak B_BE-UM-001-EN – V1.1.0...

  • Page 53: B1000N / H

    Annex A – Dimensions B1000N / H TemBreak B_BE-UM-001-EN – V1.1.0...
  • Page 54 Annex A – Dimensions B1000N / H TemBreak B_BE-UM-001-EN – V1.1.0...

  • Page 55: B1250N / H / Hl

    Annex A – Dimensions B1250N / H / HL TemBreak B_BE-UM-001-EN – V1.1.0...
  • Page 56 Annex A – Dimensions B1250N / H / HL TemBreak B_BE-UM-001-EN – V1.1.0...

  • Page 57: B1600N / Hl

    Annex A – Dimensions B1600N / HL TemBreak B_BE-UM-001-EN – V1.1.0...
  • Page 58 Annex A – Dimensions B1600N / HL TemBreak B_BE-UM-001-EN – V1.1.0...

  • Page 59: Annex B - Time Current Curves

    Annex B - Time Current Curves B250_BE – I 40 A 1, 2, 3, 4, 5 LTD pick up current I 16 – 20 – 25 – 32 – 36 – 38 – 40 A (7 steps) 30A (fixed) 40A (fixed) Instantaneous only Standard curves 1 - 5 Additional special application curves next pages...
  • Page 60 Annex B - Time Current Curves B250_BE – I 40 A B250_BE B250_BE LTD pick up current I 16 – 20 – 25 – 32 – 36 – 38 – 40 A (7 steps) 30A (fixed) 40A (fixed) Instantaneous only Standard curves 1 - 5 Additional special application curves next pages Characteristic dial setting...
  • Page 61 Annex B - Time Current Curves B250_BE – I 40 A B250_BE LTD pick up current I 16 – 20 – 25 – 32 – 36 – 38 – 40 A (7 steps) 30A (fixed) 40A (fixed) Instantaneous only Standard curves 1 - 5 Additional special application curves next pages Characteristic dial setting @ 2 x I...

  • Page 62: B250_Be - I N 125 A

    Annex B - Time Current Curves B250_BE – I 125 A 1, 2, 3, 4, 5 LTD pick up current I 50 – 62 – 78 – 100 – 112 – 118 – 125 A (7 steps) 100A (fixed) 125A (fixed) Instantaneous only Standard curves 1 - 5 Additional special application curves next pages...
  • Page 63 Annex B - Time Current Curves B250_BE – I 125 A B250_BE B250_BE LTD pick up current I 50 – 62 – 78 – 100 – 112 – 118 – 125 A (7 steps) 100A (fixed) 125A (fixed) Instantaneous only Standard curves 1 - 5 Additional special application curves next pages Characteristic dial setting...
  • Page 64 Annex B - Time Current Curves B250_BE – I 125 A B250_BE LTD pick up current I 50 – 62 – 78 – 100 – 112 – 118 – 125 A (7 steps) 100A (fixed) 125A (fixed) Instantaneous only Standard curves 1 - 5 Additional special application curves next pages Characteristic dial setting @ 2 x I...

  • Page 65: B250_Be - I 250 A

    Annex B - Time Current Curves B250_BE – I 250 A 1, 2, 3, 4, 5 LTD pick up current I 100 – 125 – 157 – 200 – 225 – 237 – 250 A (7 steps) 200A (fixed) 250A (fixed) Instantaneous only Standard curves 1 - 5 Additional special application curves next pages...
  • Page 66 Annex B - Time Current Curves B250_BE – I 250 A B250_BE B250_BE LTD pick up current I 100 – 125 – 157 – 200 – 225 – 237 – 250 A (7 steps) 200A (fixed) 250A (fixed) Instantaneous only Standard curves 1 - 5 Additional special application curves next pages Characteristic dial setting...
  • Page 67 Annex B - Time Current Curves B250_BE – I 250 A B250_BE LTD pick up current I 100 – 125 – 157 – 200 – 225 – 237 – 250 A (7 steps) 200A (fixed) 250A (fixed) Instantaneous only Standard curves 1 - 5 Additional special application curves next pages Characteristic dial setting @ 2 x I...

  • Page 68: B400_Be - I N 250 A

    Annex B - Time Current Curves B400_BE – I 250 A 1, 2, 3, 4, 5, 6, 7 200A 250A Instantane LTD pick up current I 100 – 125 – 157 – 200 – 225 – 237 – 250 A (7 steps) (fixed) (fixed)
  • Page 69 Annex B - Time Current Curves B400_BE – I 250 A B400_BE B400_BE 200A 250A Instantane LTD pick up current I 100 – 125 – 157 – 200 – 225 – 237 – 250 A (7 steps) (fixed) (fixed) ous only Additional special application curves Standard curves 1 - 7 next pages...
  • Page 70 Annex B - Time Current Curves B400_BE – I 250 A B400_BE 200A 250A Instantane LTD pick up current I 100 – 125 – 157 – 200 – 225 – 237 – 250 A (7 steps) (fixed) (fixed) ous only Additional special application curves Standard curves 1 - 7 next pages...

  • Page 71: B400_Be - I N 400A

    Annex B - Time Current Curves B400_BE – I 400A 1, 2, 3, 4, 5, 6, 7 320A 400A Instantane LTD pick up current I 160 – 200 – 252 – 320 – 360 – 380 – 400 A (7 steps) (fixed) (fixed) ous only...
  • Page 72 Annex B - Time Current Curves B400_BE – I 400A B400_BE B400_BE 320A 400A Instantane LTD pick up current I 160 – 200 – 252 – 320 – 360 – 380 – 400 A (7 steps) (fixed) (fixed) ous only Additional special application curves Standard curves 1 - 7 next pages...
  • Page 73 Annex B - Time Current Curves B400_BE – I 400A B400_BE 320A 400A Instantane LTD pick up current I 160 – 200 – 252 – 320 – 360 – 380 – 400 A (7 steps) (fixed) (fixed) ous only Additional special application curves Standard curves 1 - 7 next pages Characteristic dial...
  • Page 74 Annex B - Time Current Curves B800_BE – I 630 A 1, 2, 3, 4, 5, 6, 7 B800_BE LTD pick up current I 250 – 315 – 395 – 440 – 470 – 505 – 535 – 565 – 600 – 630 A (10 steps) Additional special application curves Standard curves 1 - 7...
  • Page 75 Annex B - Time Current Curves B800_BE – I 630 A B800_BE B800_BE LTD pick up current I 250 – 315 – 395 – 440 – 470 – 505 – 535 – 565 – 600 – 630 A (10 steps) Additional special application curves Standard curves 1 - 7 next pages...
  • Page 76 Annex B - Time Current Curves B800_BE – I 630 A B800_BE LTD pick up current I 250 – 315 – 395 – 440 – 470 – 505 – 535 – 565 – 600 – 630 A (10 steps) Additional special application curves Standard curves 1 - 7 next pages Characteristic dial...

  • Page 77: B800_Be - I 800 A

    Annex B - Time Current Curves B800_BE – I 800 A 1, 2, 3, 4, 5, 6, 7 B800_BE LTD pick up current I 320 – 400 – 505 – 560 – 600 – 640 – 680 – 720 – 760 – 800 A (10 steps) Additional special application curves Standard curves 1 - 7...
  • Page 78 Annex B - Time Current Curves B800_BE – I 800 A B800_BE B800_BE LTD pick up current I 320 – 400 – 505 – 560 – 600 – 640 – 680 – 720 – 760 – 800 A (10 steps) Additional special application curves Standard curves 1 - 7 next pages...
  • Page 79 Annex B - Time Current Curves B800_BE – I 800 A B800_BE LTD pick up current I 320 – 400 – 505 – 560 – 600 – 640 – 680 – 720 – 760 – 800 A (10 steps) Additional special application curves Standard curves 1 - 7 next pages Characteristic dial...

  • Page 80: B1000_Be - I

    Annex B - Time Current Curves B1000_BE – I 1000 A 1, 2, 3, 4, 5, 6, 7 B1000_BE LTD pick up current I 400 – 500 – 630 – 700 – 750 – 800 – 850 – 900 – 950 – 1000 A (10 steps) Additional special application curves Standard curves 1 - 7...
  • Page 81 Annex B - Time Current Curves B1000_BE – I 1000 A B1000_BE B1000_BE LTD pick up current I 400 – 500 – 630 – 700 – 750 – 800 – 850 – 900 – 950 – 1000 A (10 steps) Additional special application curves Standard curves 1 - 7 next pages...
  • Page 82 Annex B - Time Current Curves B1000_BE – I 1000 A B1000_BE LTD pick up current I 400 – 500 – 630 – 700 – 750 – 800 – 850 – 900 – 950 – 1000 A (10 steps) Additional special application curves Standard curves 1 - 7 next pages Characteristic dial...

  • Page 83: B1250_Be - I

    Annex B - Time Current Curves B1250_BE – I 1250 A 1, 2, 3, 4, 5, 6, 7 B1250_BE LTD pick up current I 500 – 630 – 790 – 875 – 940 – 1000 – 1060 – 1125 – 1190 – 1250 A (10 steps) Additional special application curves Standard curves 1 - 7...
  • Page 84 Annex B - Time Current Curves B1250_BE – I 1250 A B1250_BE B1250_BE LTD pick up current I 500 – 630 – 790 – 875 – 940 – 1000 – 1060 – 1125 – 1190 – 1250 A (10 steps) Additional special application curves Standard curves 1 - 7 next pages...
  • Page 85 Annex B - Time Current Curves B1250_BE – I 1250 A B1250_BE LTD pick up current I 500 – 630 – 790 – 875 – 940 – 1000 – 1060 – 1125 – 1190 – 1250 A (10 steps) Additional special application curves Standard curves 1 - 7 next pages Characteristic dial...

  • Page 86: B1600_Be - I

    Annex B - Time Current Curves B1600_BE – I 1600 A 1, 2, 3, 4, 5, 6, 7 B1600_BE LTD pick up current I 640 – 800 – 1000 – 1120 – 1200 – 1280 – 1360 – 1440 – 1520 – 1600 A (10 steps) Additional special application curves Standard curves 1 - 7...
  • Page 87 Annex B - Time Current Curves B1600_BE – I 1600 A B1600_BE B1600_BE LTD pick up current I 640 – 800 – 1000 – 1120 – 1200 – 1280 – 1360 – 1440 – 1520 – 1600 A (10 steps) Additional special application curves Standard curves 1 - 7 next pages...
  • Page 88 Annex B - Time Current Curves B1600_BE – I 1600 A B1600_BE LTD pick up current I 640 – 800 – 1000 – 1120 – 1200 – 1280 – 1360 – 1440 – 1520 – 1600 A (10 steps) Additional special application curves Standard curves 1 - 7 next pages Characteristic dial...

  • Page 89: Annex C - I 2 T Let-Through Curves

    Annex C - I t Let-Through Curves B250P TemBreak B_BE-UM-001-EN – V1.1.0...

  • Page 90: B400P / R

    Annex C - I t Let-Through Curves B400P / R TemBreak B_BE-UM-001-EN – V1.1.0...

  • Page 91: B800N / H / G

    Annex C - I t Let-Through Curves B800N / H / G TemBreak B_BE-UM-001-EN – V1.1.0...

  • Page 92: B800P / R

    Annex C - I t Let-Through Curves B800P / R TemBreak B_BE-UM-001-EN – V1.1.0...

  • Page 93: B1000N / H

    Annex C - I t Let-Through Curves B1000N / H TemBreak B_BE-UM-001-EN – V1.1.0...

  • Page 94: B1250N / H / Hl

    Annex C - I t Let-Through Curves B1250N / H / HL TemBreak B_BE-UM-001-EN – V1.1.0...

  • Page 95: B1600N / Hl

    Annex C - I t Let-Through Curves B1600N / HL TemBreak B_BE-UM-001-EN – V1.1.0...

  • Page 96: Annex D - Peak Let-Through Curves

    Annex D - Peak Let-through Curves B250P TemBreak B_BE-UM-001-EN – V1.1.0...

  • Page 97: B400P / R

    Annex D - Peak Let-through Curves B400P / R TemBreak B_BE-UM-001-EN – V1.1.0...

  • Page 98: B800N / H / G

    Annex D - Peak Let-through Curves B800N / H / G TemBreak B_BE-UM-001-EN – V1.1.0...

  • Page 99: B800P / R

    Annex D - Peak Let-through Curves B800P / R TemBreak B_BE-UM-001-EN – V1.1.0...

  • Page 100: B1000N / H

    Annex D - Peak Let-through Curves B1000N / H TemBreak B_BE-UM-001-EN – V1.1.0...

  • Page 101: B1250N / H / Hl

    Annex D - Peak Let-through Curves B1250N / H / HL TemBreak B_BE-UM-001-EN – V1.1.0...

  • Page 102: B1600N / Hl

    Annex D - Peak Let-through Curves B1600N / HL TemBreak B_BE-UM-001-EN – V1.1.0...

  • Page 103: Annex E - Watts Loss

    Annex E – Watts Loss Impedance Watts Loss Front Connection Watts Loss per pole Watts Loss per product Rating Impedance per pole Based from Impedance Based from Impedance Ampere Frame Pole numbers In (A) Z (mΩ) Power (W) Power (W) 0.40 0.64 1.92...

  • Page 104: Annex F - Temperature Ratings Tables

    Annex F – Temperature Ratings Tables Maximum setting of the Ir dial/s at the nominated current at the specified ambient. Rated Temperature Rated Current (A) Connection Rated MCCB Type type 30°C 35°C 40°C 45°C 50°C 55°C 60°C 65°C 70°C Front Conn. B250P 250 A 237.5...
  • Page 105 B_BE-UM-001-EN Version 1.1.0 Published 28th May 2020 1300 NHP NHP nhp.com.au NHP Electrical Engineering Products 0800 NHP NHP nhp-nz.com...

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