Glossary
3WL/3VL circuit breakers with communication capability - PROFIBUS
System Manual, 03/2011, A5E01051353-02
283
Undervoltage release (instantaneous/short-time delay)
For remotely opening and interlocking the circuit breaker as well as for using the circuit
breaker in EMERGENCY OFF circuits (to EN 60204-1 / DIN VDE 0113 Part 1) in conjunction
with a separate EMERGENCY OFF device. Brief voltage dips (t
d
< 80 ms for instantaneous
undervoltage release, t
d
< 200 ms for short-time delay undervoltage release) must not cause
the circuit breaker to open.
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