Appendix 2: Astat Xl Output Relay Compatibility; Overview; Using The Soft Starter To Switch A Contactor Coil - GE ASTAT XL User Manual

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Appendix 2: ASTAT XL Output Relay Compatibility

14.1

Overview

The ASTAT XL soft starter has three programmable output relays (terminals (A, B and C).
These relays are often used to control line or bypass contactors. The electronic contactor coils used in
many contactors have a high initial inrush current, which can damage the soft starter's internal relays
if the contactor coil is switched directly.
14.2

Using the Soft Starter to Switch a Contactor Coil

Before using the soft starter's output relay to switch an electronic contactor coil, consult the contactor
manufacturer. Some contactor manufacturers (e.g. Klockner-Moeller) state that you cannot use PCB
mount relays for direct switching of their electronic contactor coils.
If this is the case, there are two solutions:
1. Use the soft starter's output relay to control a slave relay. This slave relay can then be used to
directly switch the electronic contactor coil circuit.
2. If the contactor has a volt free electronic input (low voltage/low current), the soft starter's output
relay can be wired directly into this input for contactor control.
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ASTAT XL User Manual
1 Soft starter output relay
2 Slave relay coil
3 Contactor coil
1 Soft starter output relay
2 Contactor coil
DET-812
Fout! Stijl niet gedefinieerd.