The Littelfuse POWR-Switch provides a simple and economical solution for applications that require selective coordination and shunt trip capabilities. Common applications include elevator circuits, data processing rooms, and building emergency systems.

By utilizing Class J time delay fuses, the POWR-Switch is easily coordinated with other system overcurrent devices. The shunt trip capability allows the POWR-Switch to meet the ANSI/ASME standard that requires power to be automatically disconnected before water is turned on by the fire safety system. The POWR-Switch also features pre-wired control circuits that can help reduce installation costs.

Standard Features:

• 600 V. 3-pole fuse power switch
• 200,000 RMS interrupting rating
• Shunt trip 120 V
• Control power terminal block
• Ground lug per NEC
• Class J fuse block
• NEMA 1 enclosures

Optional Features:

• Control power transformer with fuses and blocks.
• Fire safety interface relay.
• Key to test switch.
• Pilot light “on”.
• Isolated neutral lug.
• Mechanical interlock auxiliary contact for hydraulic elevators with automatic recall (5 amp 120 VAC rated).
• Fire alarm voltage monitoring relay.
• NEMA 3R, 4, and 12 enclosures.

Benefits:

• Optional features offer flexibility for a variety of applications
• UL Listed package
• Lower installation costs than systems with many separate components
• Pre-wired control circuits lower installation time
• Lockable Operating handle meets all code and safety requirements
• No confusion over which building trade is supplying the components
• POWR-Switch is a single unit…which makes procurement easier than systems with multiple components