Notifier 5451 - Manual

DN-4760 • 01/19/95 — Page 1 of 2
GENERAL
The System Sensor 5451 plug-in rate-of-rise with fixed heat
detector contains a unique dual thermistor sensing circuit
to provide both maximum performance and solid state re-
liability. Additional features include a recess mounting op-
tion, various mounting bases, and a full line of accesso-
ries.
The 5451 thermal detector is specifically designed to meet
the stringent performance requirements of industrial and
commercial fire detection/alarm systems. The design of
these detectors emphasizes ease of installation and field
maintenance.
FEATURES
• Dual solid-state thermistor sensors.
• Fixed heat with rate-of-rise response (57.2°C/135°F alarm
point).
• Rate-of-rise feature activates when the ambient temper-
ature increases at a rate greater than 15°F (9.4°C) per
minute.
• Exceptional stability and reliability.
• Thermistor technology.
• Restorable.
• Two visible LEDs “blink” in standby and latch on in alarm.
• Sealed against back pressure.
• Three year warranty.
• Built-in test switch.
• Low standby current.
• Built-in tamper-resistant feature.
• Designed for electrical box mounting.
• 360° field viewing angle of the visual alarm LEDs.
• Easy plug-in of the head to base.
• SEMS screws for easy wiring.
• Optional recess mounting kit (flangeless bases only).
• UL listed for 50 ft. spacing.
APPLICATIONS
The 5451 135° Fixed Temperature and Rate-of-Rise Ther-
mal Detector is ideal for areas in which a smoke detector
is not practical. Independent studies show that heat de-
tectors should be used when property protection alone is
involved.
SPECIFICATIONS
Operating voltage: mounting base dependent (see chart
on page 2).
Weight: 0.6 lb. (277 g).
Size: 2" (52 mm) high, 4" (102 mm) diameter; 6.2" (158
mm) diameter with flanged bases.
S2101
MEA
167-93-E
7270-1209:105
This document is not intended to be used for installation purposes. We try to keep our
product information up-to-date and accurate. We cannot cover all specific applications or
anticipate all requirements. All specifications are subject to change without notice.
For more information, contact NOTIFIER. Phone: (203) 484-7161 FAX: (203) 484-7118
12 Clintonville Road, Northford, Connecticut 06472
5451 Thermal Detector
135° Fixed-Temperature
and Rate-of-Rise
January 19, 1995 DN-4760 • I-306
Section: Conventional Initiating Devices
Construction: flame-retardant white plastic.
Temperature: 32°F to 100°F (0°C to 37.8°C).
Humidity range: 10% to 93% RH non-condensing.
Agency listings: UL (listed for 50 ft. spacing).
ELECTRICAL RATINGS
Voltage range: 15 to 35 VDC.
Ripple voltage: 4 Vpp.
Maximum standby current: 100µA.
Input capacitance: 0.02µF.
Reset voltage: 2.50 V.
Reset time: 0.03 to 0.30 seconds.
Power-up time: 1 second maximum.
ORDERING INFORMATION
5451 Fixed heat detector with rate-of-rise. Alarm
point at 57°C (135°F). Must be mounted to
one of the 400 Series bases listed on page 2
(order separately).
RA400Z Remote annunciator for 2- or 4-wire systems,
3 – 32 V. Use with any 400 Series plug-in
detector. Fits standard U.S. single-gang elec-
trical box.
RMK400 Recessed mounting kit. Use with any 400
Series plug-in detector. Recesses detector
by 0.8".
California
State Fire
Marshal