500 Vdc Thermal-magnetic Circuit Breakers
Direct Current (dc-rated) Circuit Breakers
Thermal-magnetic protection for ungrounded systems up to 500 Vdc nominal (600 Vdc maximum) from 30A - 2500A.
Systems that use batteries as a power source, such as an uninterruptible power supply (UPS), require special consideration when specifying overload protection. Square D® 500 Vdc thermal magnetic circuit breakers are designed per UL Supplement SC for use in an ungrounded dc system using an uninterruptible power supply (UPS), with a nominal voltage of 500 Vdc or a maximum (floating) voltage of 600 Vdc.
- Low magnetic trip settings provide increased protection for equipment and batteries during a short-circuit
- Adjustable instantaneous trip readily accessible as a single adjustment on the face of the circuit breaker (except the PAF-DC and PCF-DC which have fixed magnetic settings)
- Crane & Hoist
- Data Centers
- Healthcare Facilities
- OEM Commercial
- Solar Installations
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