3825OhioAvenue•St.Charles,IL60174

Phone:800-SENSOR2•Fax:630-377-6495

©2009 System Sensor.

Product specifications subject to change without notice. Visit systemsensor.com for

current product information, including the latest version of this data sheet.

A05-0362-002•3/09•#2125

Ordering Information

Part No.

Description

2251B*

Photoelectric smoke detector

2251TB*

Photoelectric smoke detector with thermal

2251TMB*

1251B*

Ionization smoke detector

5251B*

Fixed temperature thermal detector

5251RB*

Rate-of-rise thermal detector

5251H*

High temperature thermal detector

Bases

B501*

Flangeless mounting base

B210LP*

Flanged mounting base

B501BH*

Standard sounder base

B501BH-2*

Standard sounder base;

complieswithUL8649thedition

B501BHT*

Temporal tone sounder base

B501BHT-2*

Temporal tone sounder base;

complieswithUL8649thedition

B224RB*

Relay base

B224BI*

Isolator base

RMK400

Recessed mounting kit

SMK400

Flangeless surface mounting kit

SMB600

Flanged surface mounting kit

Accessories

F110

Retrofit flange

RA400Z

Remote LED annunciator

M02-04-01

Detector test magnet

M02-09-00

Telescoping test magnet

XR2B

Detectorremovaltool(T55-127-000included)

XP-4

Extension for XR2 (5 to 15 ft)

T55-127-000

Detector removal head

BCK-200B

Black detector kit (10 pack)**

WCK-2008

White Detector Kit (10 pack)**

Accessories

200 Series Intelligent Detector Specifications

Physical/Operating Specifications

Height

2.0 in (51 mm)

Diameter

6.1in(155mm)installedinB210LPbase;4.1in(104mm)installedinB501base

Shipping Weight

Heat:4.8oz(136g);Photo/PhotowithHeat:5.2oz(147g);Ion:5.4oz(153g)

Operating Temperature Range

Ion/Photo:32°Fto120°F(0°Cto49°C)

PhotowithThermal:32°Fto100°F(0°Cto38°C)

Thermal:–4°Fto100°F(–20°Cto38°C)

HighTemperature:–4°Fto150°F(–20°Cto66°C)

UL Listed Velocity Range

Ion:0to1200fpm(0to6.1m/sec)

Photo/PhotowithThermal:0–4000fpm(0–20m/sec)(suitableforinstallationinducts)

Operating Humidity Range

10% to 93% noncondensing

Thermal Ratings

FixedTemperatureSetpoint:135°F(57°C)

RateofRiseDetection:15°F/min.(8.3°C/min.)

HighTemperatureHeat:190ºF(88ºC)

Electrical Specifications

Voltage Range

15to32voltsDCpeak

Standby Current (max. avg.)

300 µA@24VDC(onecommunicationevery5secondswithLEDenabled)

Photo/PhotowithThermal:300µA@24VDC(onecommunicationevery5secondswithLEDenabled)

LED Current (max.)

6.5mA@24VDC(on)

RA400Z

Remote LED

Annunciator

XR2B

Detector

Removal Tool

Head also sold separately

*Add“A”forULClistedproduct(e.g.,2251BA)

**TheBCK-200BandWCK-200BareonlyapplicabletotheB210LPflangedstyle

mounting base and may only be used with 2251B (photoelectric) and 1251B

(ionization) smoke detectors.