Power Supply; Technical Specifications - Siemens Sentron 3VA Manual

Protection devices molded case circuit breakers with ul and iec certification

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4.10 MMB300 maintenance mode box

Power supply

The MMB300 maintenance mode box requires a UL Class 2, 24 V DC power supply and

also serves as the power supply for the connected ETUs. This allows the ETU to remain

operational even after the 3VA6 molded case circuit breaker has tripped or is in the

Off position.

3VA molded case circuit breakers with UL and IEC certification

Manual, 01/2019, L1V30435333-01

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