System Sensor’s 400 Series plug-in smoke detectors are designed to meet the

performance criteria designated by UL/ULC. The ion units have a sensing chamber

sealed from back pressure air flow, dirt, and insects. This chamber is protected

by a fine mesh screen which can be cleaned or replaced. Additional key features

include a recessed mounting option, interchangeable ion, thermal detectors, a vari-

ety of mounting bases, and a full line of optional accessories.

source, dual unipolar detector chamber design which will sense the presence of smoke

particles produced by fast combustion as well as slow smoldering fires. This chamber

exhibits increased stability, significantly reduces nuisance alarms, and provides better

performance at higher air velocities.

unique dual thermistor heat sensing circuit to provide maximum performance and

solid state reliability. The Model 5451 is designed to initiate an alarm at 135°F and

to respond to a temperature increase in excess of 15° per minute. This enables the

heat detector to communicate an alarm to the central control panel prior to reaching

the static set point for these high rates of rise, providing a timely response to both

rapid and slow temperature increases. This model should be used in applications

where rapid response is desired and where rapid temperature increases would only be

caused by a fire emergency.

Models Available

1451

Ionization Detector

1451A

Ionization Detector,

ULC Listed

5451

Thermal Rate-of-Rise

Product Overview

SSV120-6

Low standby current

Two visible LEDs “blink” in standby and

provide a 360° field viewing angle

Wide variety of mounting bases with

built-in shorting spring

Detector head plugs easily into base

Built-in test switch

Field sensitivity metering of detector to

meet the requirements of NFPA 72

Built-in tamper-resistant feature

SEMS screws for easy wiring

Optional recessed mounting

Removable cover and insect screen for

field cleaning

400 Series

Plug-in Smoke Detector

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