Application planning
4.2 Power supply, grounding, and connection
Air circuit breaker 3WL10
122
Manual, 11/2017, L1V30499596002-01
4.2.3
Armature plates
The electrodynamic forces that arise during a short-circuit can result in high mechanical
loads in and on the switchboard. To minimize the effects, armature plates must be mounted
in the vicinity of the terminals of the circuit breaker.
Busbars
The following diagram shows the distance of the first armature plate depending on the
prospective short-circuit current when busbars are used:
①
Distance of the first armature plate to the terminals of the circuit breaker
②
Prospective short-circuit current
Cables
If cables are used in the installation, the armature plates must be mounted at a distance of
150 mm from the connection.
Summary of Contents for SENTRON 3WL10
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Page 8: ...Table of contents Air circuit breaker 3WL10 6 Manual 11 2017 L1V30499596002 01 ...
Page 170: ...Operation 6 3 Troubleshooting Air circuit breaker 3WL10 168 Manual 11 2017 L1V30499596002 01 ...
Page 180: ...Technical specifications Air circuit breaker 3WL10 178 Manual 11 2017 L1V30499596002 01 ...
Page 199: ...Air circuit breaker 3WL10 Manual 11 2017 L1V30499596002 01 197 Circuit diagrams 10 ...
Page 212: ...Circuit diagrams Air circuit breaker 3WL10 210 Manual 11 2017 L1V30499596002 01 ...
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