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What does the S1 suffix indicate on an SEF or SED breaker?
Issue:
What does the S1 suffix mean on an SEF or SED breaker?

Product Line:
SEF or SED Electronic Trip Insulated Case Circuit Breakers

Resolution:
The S1 suffix on an SEF or SED breaker indicates a 120 Vac shunt trip. The SEF and SED breakers, along with all accessories, are now obsolete and no longer available. Services has a retrofit kit to use the NW Masterpact breaker as a replacement, which fits in the same space as the SE breaker.

Schneider Electric USA

What does the S1 suffix indicate on an SEF or SED breaker?
Issue:
What does the S1 suffix mean on an SEF or SED breaker?

Product Line:
SEF or SED Electronic Trip Insulated Case Circuit Breakers

Resolution:
The S1 suffix on an SEF or SED breaker indicates a 120 Vac shunt trip. The SEF and SED breakers, along with all accessories, are now obsolete and no longer available. Services has a retrofit kit to use the NW Masterpact breaker as a replacement, which fits in the same space as the SE breaker.

Schneider Electric USA

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