440P-MSLB22B

The 440P-MSLB22B is a safety limit switch produced by Allen Bradley that falls within the Guardmaster Safety Relays series. This product is crafted to enhance security in automated processes. The unit incorporates two normally-closed contacts alongside two normally-open contacts that ensure reliable signaling during operation.

In scenarios requiring auxiliary circuits, there is an additional one normally-open and two normally-closed auxiliary contacts available, providing further flexibility. The switch can endure a minimum actuation speed of 100 mm/min, scaling up to a maximum speed of 250 mm/s. With a thermal current capacity of 10 amps, it effectively manages currents without overheating or malfunctioning.

Impressive electrical resilience is noted through its impulse withstand voltage rating of 2500 volts. The maximum operational frequency for the 440P-MSLB22B is notable as it allows for 6000 operations per hour, fitting well within environments that require quick and repeated actuation.

It operates under a rated insulation voltage of 600V AC, ensuring it meets various industrial standards. The device's housing is made of robust die-cast alloy, contributing to its durability. Additionally, the protection rating stands at NEMA 1, implying its capability to function in relatively clean and dry areas, safeguarding it from non-hazardous dust and contact but not necessarily from water.