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System Sensor 5451 Fixed-Temp Heat Detector

4 in stock
90 Days
- +

Product Description

NOTE: This part is discontinued by the manufacturer. Replace with: System Sensor 5151 Combination Detector

The Model 5451 Fixed- Temp Heat Detector is part of the 400 Series of Plug-in Smoke Detectors from System Sensor.

Sensitivity: 135F (57C) Fixed or 15F/min rate-of-rise

— B401B 2-wire, 24VDC
— B402B 4-wire w/ resistor, Form A&C Contacts, 24VDC
— B404B 4-wire, Form A&C + A supervised Contacts,120VAC
— B406B 2-wire, Form C Contacts, 24VDC
— B401 Standard flangeless 2-wire, 24VDC
— RA400Z remote LED annunciator
Please note: All parts should be installed and tested by a certified fire alarm company.

Questions (4)

How much maintenance does this product require?
The 5451 detector has been designed to be as maintenance-free as possible. Normal air-borne dust, however, can accumulate on the detector’s sensing elements and cause them to become less sensitive. All detectors should be tested and cleaned at least once a year, and those in dustier areas should be tested and cleaned more often. Detectors must also be cleaned and tested immediately after a fire.
What bases can be used with this product?
This detector is only to be used with 400 and 400B series bases.
What if I need to return this?
All products are covered by our 90-day warranty and come with a prepaid UPS return label and RMA form. Returning products has never been this easy.
What if I need support?
Our friendly team is on hand with expert advice and assistance. Contact us Mon-Fri 8am-8pm by phone (888.303.2656), by email ( or using our online chat. Responses within 1 business day (if not sooner!)