Allen-Bradley 1492-SP1D020 is a 1-pole, 2 A supplementary circuit breaker rated for 277 VAC, part of the Bulletin 1492-SP family. It uses a thermal-magnetic D-trip characteristic and provides a 5 kA at 277 V interrupting capacity, with line and load lug terminals; the SP1D020 variant has no neutral (the SP1D020-N adds a neutral). UL/CSA listed for 277 V AC operation, this compact device is designed as a supplementary protective device in industrial control panels.
