TELEPHONE
Building Entrance 5-Pin Modules


C3B1E & C4B1E Series

Balanced Operation - Heavy Duty with self-Resetting Current Limiters



 

 

Description:

The C3B1E-BAL and C4B1E-PTC/BAL premium series of 5 pin, 3 element protector modules are designed to provide superior transient and power fault protection for most standard telephone line applications. The common chamber, 3 electrode gas tube provides true balanced operation. An over voltage on either side of the circuit enables the entire tube to ionize which provides a simultaneous path to ground for both sides of the circuit. This grounding prevents a second arriving transient on the opposite side to pass through to the equipment. Nominal breakdown voltage for the 3B1E/4B1E series is 350VDC.

Features:

bulletheavy duty surge handling capability 
bulletsuperior common chamber design 
bulletUL and cUL listed 
bulletintegrated test points 
bulletdesigned to meet or exceed Belcore standards 

 

Benefits:

bulletrugged, dependable operation
bulletfewer service calls than the 2 element designs
bulletprevents damage by "lagging" or sneak transients
bulletdocumented safe performance
bulletnon-radioactive
bulletISO9002 certified manufacturer

 

 

ORDERING INFORMATION

Model No. Order No. Pin1 Color
C3B1E 75001 Gold Black
C3B3E 75002 Gold Red
C4B1E 75003 Gold Black
C4B3E 75004 Gold Red

SPECIFICATIONS

 
 

  CT3BIE  

  

  CT3B1E

  DC Breakdown (nominal)

  

Capacitance

  

 @100V/µsec

350V

1Vrms@1KHZ, 50VDC

<1pf
       

  Impulse Breakdown Voltage

  

  Insulation Resistance

  

 @ 100V/µsec

700A

@50VDC

>100M ohms

@1KV/µsec

150A

    
   

Fail- safe Operation

  

  DC Holdover Voltage

 135V

@1.0 A

<50 sec
 

<150rms

 @5.0 A

<15 sec

  Surge life
(min operations)

  

@20 A

<10 sec

@10A, 10 x 1000 µsec

 >3000

@60 A

<3 sec

@100A, 10 x 1000 µsec

>300

    

10kA, 8 x 20 µsec

10

  Current Limiting (-PTC)

  

@20kA, 8 x 20 µsec

1

 Hold current (ma) @20C=

145

 @65Arms, 11 cycles, 130A total

1

 R min/Rmax ohms=

3/6

@10 Arms, 1 sec

10

    

1surge rating is 2x with respect to ground during a simultaneous surge
2service life requirement as per Bellcore TR-NWT-0001361
3pin alloy refers to tip and ring pins. Unless otherwise noted, all ground pins are tin

(These products were previously referred to as CT3B1E and CT4B1E.)

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