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REMOVABLE COVER
FOR CLEANING

REMOVABLE SCREEN
(P/N RS14)

LOCK PRONG

SENSING CHAMBER

Canada

25 Interchange Way
Vaughan, Ontario  L4K 5W3
Telephone: (905) 660-4655
Fax: (905) 660-4113

Web page:   http://www.mircom.com        Email:   [email protected]

Distributed by:

CAT. 5105

Rev. 5

Architects/Engineer Specifi cations

Operating Voltage: 

Mounting Base Dependent

Standby Current:   

120 micro amps

Sensitivity:   1.9% 

nominal

Weight:   

 

0.5 pounds (277 grams)

Size: 

  2.4”/6 

mm 

high

   4.0”103 

mm 

diameter

 

 

 

(6.2”/158 mm diameter with  

 

 

 

fl anged bases).

 

1451 

 

Ionization detector.  Must be mounted to one of the B400 Series Bases listed.

RA-400Z 

Remote annunciator for 2 or 4 wire applications.  Use with any System Sensor 400 series plug-in  

 

 

detector.  Fits standard single-gang electrical box.

MOD400R 

Field test module for all of the System Sensor 400 Series Smoke Detectors.

General Specifi cations

Ordering Information

All 1451B-A ionization smoke detectors contain a 
unique dual source, dual unipolar chamber detection 
design which will sense the presence of smoke 
particles produced by fast combustion as well as slow 
smouldering fi res.  Additional key features include 
a blinking LED standby status indicator, an easily 
visible alarm indication and provision for convenient 
fi eld test and metering

The back of the detector is sealed to block back 
pressure air fl ow.  The chamber is protected by a fi ne 
mesh (0.20”/0.508mm) screen to minimize problems 
with dust, dirt and insects.  If cleaning is required, it 
is easy to remove the cover (with a special tool) and 
obtain access to the screen and chamber to perform 
a thorough cleaning.

Base Model  

Loop    

Current  

 

Contact  

Standby 

Current Draw 

Number 

 Version 

 Type 

Limit 

Resistor 

Type 

 Voltage 

 or 

Alarm

B401B-A 

UL & ULC

 

2-wire  No 

 

  -  

 

8.5 to 35 VDC  10 to 100 mA*

B406B-A 

UL & ULC

 

2-wire  No 

 

Form C  

15 to 35 VDC  12 to 100*

* Limited by control panel

Relay Contact Ratings on the B406B base: Resistive or Inductive (60% power factor) load.
 

Form A:  

2.0 amps @ 30 VAC/DC

 

Form C: 

0.6 amps @ 110 VAC, 2.0 amps @ 30 VDC.

 

 

 

1.0 amps @ 125 VAC, 2.0 amps @ 30 VAC.

Construction:  

Flame 

retardant

   white 

Noryl

7

 

plastic

Temperature:  

32

°

 to 120

°

F

   (0 

to 

49

°

C)

Humidity Range:   

10 to 93% R.H.

   (non-condensing)
Maximum air  

 

1,200 feet per minute

velocity:   

 

(6 meters per second)

NOT TO BE USED FOR INSTALLATION PURPOSES.

U.S.A.

4575 Witmer Industrial Estates
Niagara Falls, NY 14305
Toll Free: (888) 660-4655
Fax Toll Free: (888) 660-4113

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