Type 4140

77 mm
Typ 4140 von E-T-A: Einpoliger, thermischer Schutzschalter mit Gewindehalsbefestigung und Druck/Zug-Betätigung.


Single pole, thermal circuit breaker with trip-free mechanism, push/pull on/off manual actuation (M-type TO CBE to EN 60934) and temperature compensation. An indicator band on the push button clearly shows the tripped/off position. Threadneck panel mounted, available in metric and US configurations. The robust design makes type 4140 suitable for extremely harsh conditions.

Technical Data

Voltage rating
  • AC 115 V (400 Hz)
  • DC 28 V
Current ratings from 20 A up to 50 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
Typical life 5,000 operations mechanical and

2,500 operations at 1 x IN
Interrupting capacity Icn AC 115 V (400 Hz): 1,500 A

DC 28 V: 4,000 A
Certificates EN 3661-005 NSA 931321


Order number Description

splash cover black with O-ring


actuator extension


identification collar


splash cover transparent with O-ring


  • Aerospace