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The Littelfuse AM1-B0-12-640-201-C is a single-pole magnetic hydraulic delay circuit breaker designed for panel mount applications. It is rated for 40A continuous current at 277V AC, making it suitable for a variety of industrial and commercial power distribution systems. The hydraulic delay mechanism provides time-delayed tripping for inrush currents while maintaining fast response to short circuits.
The breaker features a toggle actuator for manual on/off control and reset. It is housed in a compact panel-mount package. The part is RoHS3 compliant and has an MSL of 1 (unlimited), indicating no moisture sensitivity restrictions. This circuit breaker is part of Littelfuse's AM1 series, known for reliable overcurrent protection.
40A.
277V.
Magnetic (Hydraulic Delay).
1 pole.
Toggle.
Panel Mount.