D200-88-00

1

I56-1331-02R

Intelligent Plug-In Model 5251P

Fixed Temperature Sensor

INSTALLATION AND MAINTENANCE INSTRUCTIONS

A Division of Pittway

3825 Ohio Avenue, St. Charles, Illinois 60174

1-800-SENSOR2, FAX: 630-377-6495

Before installing sensors, refer to NFPA 72, and 101 (Life Safety Code) for information on sensor spacing, placement, zon-

ing, and special applications.

GENERAL DESCRIPTION

Model 5251P is an intelligent sensor that utilizes a state-of-the-art thermistor sensing circuit for fast response. This sensor

is designed to provide open area protection with 50 foot spacing capability and is intended for use with compatible con-

trol panels only.

Two LEDs on each sensor light to provide 360

° visibility of the sensor indication. The LEDs can be latched ON by code

command from the panel for an alarm indication. The LEDs can also be unlatched to the normal condition by code com-

mand. Remote LED annunciator capability is available as an optional accessory (Part No. RA400Z).

SPECIFICATIONS

Diameter:

6.1 inches (155 mm) installed in B210LP

4.1 inches (104 mm) installed in B501

Height:

2.0 inches (51 mm)

Weight:

5 ounces (150 gm)

Installation Temperatures:

-4

°F to 100°F (-20°C to 38°C)

Operating Humidity Range:

10% to 93% Relative Humidity Non-condensing

Mounting:

B210LP flanged base

B501 flangeless base

B501 with RMK400 recessed mounting kit

Voltage Range:

15 to 32 Volts DC Peak

Standby Current:

300

µA @ 24 VDC (one communication every 5 seconds with LED blink enabled)

LED Current:

6.5 mA @ 24 VDC

Fixed Temperature Rating:

135

°F (57°C)

WIRING GUIDE

Refer to the installation instructions for the particular plug-in base being used: 1) for the B210LP base (D250-01-00); 2) for

the B501 base (D550-02-00); 3) for the RMK400 used with the B501 base (D450-07-00). Bases are provided with screw ter-

minals for power, ground, and remote annunciator connections. See Figure 1.