Wheelock MPS-ISB Interior Surface BackboxThe Wheelock MPS ISB backbox is an interior surface mount backbox for Wheelock MPS manual pull stations, providing a clean, surface mounted installation on a single gang footprint. Its finished in red to match MPS stations and is sized for consistent mounting depth and alignment.

— 2459-WPB-R Weatherproof Box

A software filtering process compensates for environmental factors

compatible with Wheelock synchronization methods

Two riser inputs

The 4XZM includes a switch that disconnects all the relays (supervised)

Power: 16 to 33 VDC/FWR operating range with six selectable candela settings of 15

Horn — Selectable High/low dB

The Simplex 742-342 Power Supply is the replacement Power Supply Board for Simplex 4100U and Simplex 4100ES fire alarm control panels

Sensitivity: 135F degrees fixed temperature

address and control the Simplex 49SO-APPLW

remote or local mount supervised relay • DPDT contacts for resistive/suppressed loads • power limited rating of 3 A at 28 VDC • non-power limited rating of 3 A at 120 VAC

typically for retrofit Dimensions: 6-1/8” x 4-3/8” x 2-7/8” deep (156 mm x 111 mm x 73 mm)