LPS Series Shunt-Trip Disconnect Switch
The Littelfuse LPS Series disconnect switch is an integrated power controller designed to meet the requirements of NFPA®70 (National Electrical Code®), NFPA 72 (National Fire Alarm Code®), ANSI/ASME A17.1 (Safety Code for Elevators and Escalators), NFPA 13 (Installation of Sprinkler Systems) and other state and local jurisdiction requirements with regard to AC power for elevators.
The Littelfuse LPS Series disconnect switch may be ordered in 30 A, 60 A, 100 A, 200 A or 400 A configurations, for 208, 240, 480 or 600 VAC (60 Hz), 3 or 4 wire systems. The Littelfuse LPS Series disconnect switch may be configured for use as Service Equipment with the addition of a 2-port ground lug and the appropriate label per NEC Article 230.66 (option S).
Enclosures are available for the Littelfuse LPS Series disconnect switches which meet NEMA 1, NEMA 3R, NEMA 4/4X and NEMA 12 standards.
The Littelfuse LPS Series disconnect switch is designed to interrupt the source of incoming AC power for a single cable or hydraulic elevator, upon a signal from the Fire Alarm Control Panel (FACP). This is primarily to minimize the risk of electric shock, and to prevent impact to the mechanical safety features of an elevator, caused by water released from the fire sprinkler system.
The Littelfuse® LPS Series provides a simple and economical solution for applications that require selective coordination and shunt trip capabilities.
Utilizes Class J time-delay fuses that are easily coordinated with other system overcurrent devices. The shunt trip capability allows the LPS Series to meet the ANSI/ASME standard that requires power to be automatically disconnected before water is turned on by the fire safety system.
Features/Benefits:
• Pre-engineered single unit, which makes procurement easier than systems with multiple components.
• Reduces labor costs up to 66% and total installation costs by over 30%.
• Pre-installed UL Listed Class J fuse holder – unique Class J size eliminates the need for any rejection type fuse clips.
• Optional features offer flexibility for a variety of applications.
• Color coded control power terminal blocks.
• UL Listed package.
• Cu and AI wire rated.
• Pre-wired control circuits lower installation time.
• Lockable operating handle meets all code and safety requirements (accepts up to 3 locks).
• Every unit is fully tested before delivery.
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[ Elevator circuits ][ Data processing rooms ][ Building emergency systems ] |
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User's Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2017/09/11 |
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Rev: 020717 |
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800.TEC.FUSE |
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2.1 MB |
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