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Type: 3120

Description

~ 54 mm

The 3120 circuit breaker/switch combination is an ON/OFF switch with integral overcurrent protection (S-type TO CBE to EN/IEC 60934). The trip element is a bimetal. Type 3120 is ideally suited for overload protection of motors, pumps, transformers and cables.

Product characteristics:

  • rocker or push button actuation
  • single pole and double pole versions
  • reliable switching behaviour (positively trip-free)
  • convenient snap-in mounting
  • international approvals


Options and add-on modules:

  • illumination
  • water splash protection
  • auxiliary contacts
  • under voltage trip
  • remote trip
  • magnetic trip (see thermal-magnetic circuit breakers)
  • push-in terminals
  • appliance inlet module

This product is also available as switch only (more information see data sheet).

Technical Data

Technical Data

Voltage rating 
  • AC 240 V (AC 415 V to special order)
  • DC 50 V
  • UL/CSA: AC 250 V
Current ratings  from 0.1A to 20A  
(up to 30 A to special order, single pole only)
Typical life 0.1...16 A 50,000 operations at 1 x IN, inductive, double pole
0.1...20 A 30,000 operations at 1 x IN, inductive, single pole
Interrupting capacity Icn 0.1...2 A: 10 x IN
2.5...20 A: 150 A single pole
2.5...20 A: 250 A double pole
Number of poles 
  • single pole 
  • double pole 
Mounting method 
  • flange 
Terminal design 
  • blade terminals 
  • screw terminals 
Actuation 
  • push button 
  • rocker 
Auxiliary contacts 
  • with auxiliary contacts 
  • without auxiliary contacts 
Water splash protection 
  • with water splash protection 
  • without water splash protection 
Illumination 
  • with illumination 
  • without illumination 
Approvals VDE, CSA, UL, CCC

Accessories

Accessories

Order numberDescription
X3120-Saux. contact module
X3120-Mmagnetic module
X3120-Uundervoltage release module
X 221 619 01water splash cover, transparent
X 222 143 01translucent water splash cover
Y 303 068 01insulated cover
Y 303 675 01spacer for -F3...
panel thickness < 2 mm
Y 303 675 02spacer for -F3...
panel thickness < 4 mm
Y 303 676 01spacer for -F5...
Y 303 862 01terminal adapter
Y 303 885 31blanking piece
Y 304 275 01water splash cover black
Y 307 097 01spacer
X3120-A/-BAppliance inlet module
Y 312 140 01plug-in connector

Applications

Applications

  • Watercraft & Vehicles 
  • Rail Vehicles 
  • Medical Equipment 
  • Telecom & Datacom 
  • Minus DC 48 V 
  • Household, Hobby & Garden Equipment 
  • Lighting Equipment