Type: 4120

Single pole, miniaturised thermal circuit breaker with trip-free mechanism and push/pull on/off manual actuation (M-type TO CBE to EN 60934). Threadneck panel mounted, temperature-compensated, with optional auxiliary contacts. Fully approved for commercial aircraft and similar requirements.

Data sheet

Technical Data

Voltage rating: 
  • AC 115 V (400 Hz)
  • DC 28 V
Current ratings: 
from 1 A to 25 A  (0.5 A upon request)
Typical life:
20,000 operations mechanical or
5,000 operations at 1 x IN
Interrupting capacity Icn:
AC 115 V (400 Hz):
1...4 A: 1,000 A
5...25 A: 2,000 A
DC 28V:
1...25 A: 6,000 A
Number of poles: 
  • single pole 
Mounting method: 
  • threadneck 
Terminal design: 
  • screw terminals 
Actuation: 
  • manual release 
  • push button 
Auxiliary contacts: 
  • with auxiliary contacts 
  • without auxiliary contacts 
Water splash protection: 
  • with water splash protection 
  • without water splash protection 
Illumination: 
  • without illumination 

Accessories

Order numberDescription
X 200 801 03splash cover black with O-ring
X 200 801 08splash cover transparent with O-ring
X 200 803 01actuator extension
Y 307 004 01-05identification collar
Y 307 005 01lock out ring

Applications

  • Automobiles 
  • Commercial Vehicles 
  • Aerospace 
  • Telecom & Datacom 
  • Minus DC 48 V 
  • Household, Hobby & Garden Equipment 

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