Technical Notes (Arc Space, Reverse Connection); Technical Notes (Performance Of Withstand Voltage) - Mitsubishi Electric AE-SW Series Instruction Manual

Technical notes
 Arc space
When a short circuit current is interrupted, hot gas blows out from the exhaust port of the arc-extinguishing chamber.
Provide a clearance as shown in Fig. 34.
For the drawout type, ensure appropriate clearance (dimension B) to avoid pinching a finger during the drawout
operation.
※ For the fixed type, maintenance can be performed with the clearance shown in Fig. 34.
Electric equipment, device, or screen, etc.
Side
board
Fig. 34
 Reverse connection
Line and Load are not defined on the Main circuit terminals.
Therefore, reverse connection is available without any limitation.
 Performance of withstand voltage
Between the main circuit live parts and the ground
Between live parts of different polarity poles
Main circuit
(Note 1)
Between the power supply and load terminals
Between the main circuit live parts and all the control circuit terminal block
Between all the accessories on the control circuit terminal block
Control circuit
Between all the electronic trip relays on the control circuit terminal block
Note 1: When testing the dielectric strength with a UVT attached, remove the wiring on the voltage input terminals (D1 and D2).
(When the UVT rating is 380-460 V AC, remove the wiring on the external unit input terminals (IN1, IN2).)
Note 2: Terminals of accessories AX/HAX, MD, UVT, CC, SHT, and AL
Note 3: Electronic trip relay terminals (P1, P2, 513, 524, 534, 544, 554, 564, 574)
Note 4: This is 4 kV for the AE4000-SW ~ AE6300-SW drawout type.
Note 5: Terminals N1, N2, Z1, Z2, RS1, RS2, and P4 of the control circuit terminal block are forbidden for dielectric testing.
E-34
Panel
Test points
(Note 2)
Table 34 Clearance dimensions
AE630-SW ~ AE3200-SW
Model
AE2000-SWA, AE4000-SWA
Applied circuit voltage 600 V AC or less
A (Note1) 0
B (Note3) 50
Fixed type
C 162
D (Note2) 50
A 0
B
(Note3) 50
Drawout type
C 240
D (Note2) 50
Note 1: To inspect the arc-extinguishing chamber and main contacts,
300 mm or more is required.
Note 2: Dimension D is the wiring space from the control circuit terminal
block.
Note 3: When a mechanical interlock (MI) or door interlock (DI) is being
used, dimension B needs to be long enough to install such
devices.
Withstand voltage (AC)
3500 V AC 1 minute
and the ground
2000 V AC 1 minute
and the ground
(Note 3)
(mm)
AE4000-SW ~
AE6300-SW
660 V, 690 V AC 690 V AC or less
(Note1) 100 (Note1) 200
(Note3) 50 (Note3) 50
162 -
(Note2) 50 200
100 200
(Note3) (Note3) 50
50
240 -
(Note2)
(Note2) 50 200
Rated impulse withstand voltage
Uimp
12 kV
6 kV
(Note 4)
4 kV