Cooper Wheelock PS-8-LP 8A Power Supply, 120V, Red Enclosure

The Eaton Wheelock PS-8-LP POWERPATH is an 8-amp, 24VDC supervised notification appliance circuit (NAC) power supply and battery charger designed to expand fire alarm horn and strobe circuits. Featuring four Class B or two Class A NAC outputs, expandable to eight Class B or four Class A circuits with an optional PS-EXP module, it delivers up to 3A per output. The unit includes Wheelock strobe synchronization, two initiating inputs, 2.5A managed auxiliary power, battery supervision, and a red low-profile steel enclosure. It operates on 120VAC and is UL 864 listed.

Eaton Wheelock PS-8-LP POWERPATH 8A Fire Alarm NAC Power Supply

The Eaton Wheelock PS-8-LP POWERPATH NAC Power Supply is a supervised remote power supply and battery charger designed to expand the notification appliance circuit capacity of compatible fire alarm control panels. Manufactured by Eaton under the Cooper Wheelock brand, the PS-8-LP delivers 8 amps of filtered, regulated 24VDC notification power for operating compatible fire alarm horns, strobes, and combination horn-strobe appliances. Its standard configuration provides four Class B (Style Y) or two Class A (Style Z) notification appliance circuits, with support for a mixed arrangement of two Class B circuits and one Class A circuit. The unit is designed for commercial buildings, educational facilities, healthcare properties, industrial facilities, and other fire alarm installations requiring additional supervised notification power beyond the capacity of the main fire alarm control panel.

The PS-8-LP operates from a 120VAC, 50/60Hz primary power source and provides up to 8A of total alarm output current, with a maximum of 3A per NAC circuit. Two configurable initiating inputs accept compatible 12VDC or 24VDC fire alarm notification circuits or dry-contact control signals, allowing the external control panel to activate selected notification outputs. The POWERPATH supports steady notification output, Temporal 3 signaling, Wheelock synchronization, and selective audible silence for compatible two-wire horn-strobe appliances. Built-in input-following logic enables synchronized operation with supported initiating circuits, while dedicated synchronization bus connections allow multiple compatible POWERPATH supplies to operate together. An optional PS-EXP expansion module increases the available notification circuits to eight Class B or four Class A outputs without increasing the power supply's total 8A capacity.

Designed for supervised fire alarm notification and auxiliary equipment power, the Wheelock PS-8-LP incorporates automatic battery switchover, circuit fault monitoring, ground-fault detection, and dedicated trouble reporting contacts. Its integrated charger supports a 24VDC standby battery arrangement using two 12V sealed lead-acid batteries, with space for batteries up to 7Ah inside the enclosure and manufacturer-supported charging capacity up to 33Ah using suitable external battery accommodations. The auxiliary output supports 2.5A of managed power during normal operating conditions, automatically disconnecting during alarm or loss of AC power. Battery-backed constant auxiliary power is available at 240mA for a 24-hour standby application or 20mA for a 60-hour standby application, subject to the manufacturer's battery calculations. Additional supervision functions include AC failure indication, low or disconnected battery detection, output circuit supervision, short-circuit protection, and programmable AC failure reporting delays.

The Eaton Wheelock PS-8-LP features a red, lockable, low-profile steel enclosure measuring approximately 17 inches high, 13 inches wide, and 3.5 inches deep, with a listed product weight of approximately 9.4 pounds. The enclosure accommodates the power supply electronics, field wiring connections, configuration switches, and standby batteries within a compact wall-mounted assembly. Diagnostic LED indicators provide operating and fault information, with the POWERPATH platform supporting up to 37 distinguishable diagnostic codes to assist installation and troubleshooting. The unit operates in indoor dry environments from 32 F to 120 F (0 C to 49 C) and is documented under UL 864 for fire alarm control units and accessories, with additional UL 1481 and FM approvals identified in Eaton's product literature. The PS-8-LP provides a scalable, supervised power expansion solution for compatible fire alarm notification systems requiring synchronized audible and visual signaling.