Type: 3120-N

~ 53 mm
Typ 3120-N von E-T-A: Der thermische Kombi-Schutzschalter Typ 3120-N...-....T1-...

The 3120-N...-...T1-... thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal.
Type 3120-N...-...T1-... is ideally suited for overload protection of motors, pumps, transformers and cables. After tripping, it can reliably, easily and quickly be reset. The positively trip-free mechanism ensures reliable disconnection of the circuit even with the actuator blocked.

Type 3120-N is also available with thermal-magnetic trip (please see data sheet circuit breaker p. 19 ff).

Your benefits:

  • Maximum equipment availability is ensured by overload protection perfectly matched with the loads (prevention of nuisance tripping) and quick resettability
  • Reduced mounting and wiring time
  • Space-saving design
  • Reduced disposition and storage costs
  • Increased overall reliability

Type 3120-N is also available as a switch in accordance IEC/EN 61058 (see data sheet switch only).

Voltage rating
  • AC 240 V, DC 50 V
  • AC 415 V upon request
Current ratings from 0.1 A until 20 A  
(up to 30 A to special order, single pole only)
Number of poles single pole
double pole
Mounting method flange
Terminal design blade terminals
screw terminals
Actuation push button
rocker
Water splash protection with water splash protection
without water splash protection
Illumination with illumination
without illumination
Typical life single pole
AC 240 V:
0,1...20 A 30 000 operations at 1 x IN, inductive

DC 50 V:
0,1...4 A 30 000 operations at 1 x IN, inductive
4,5...16 A 30 000 operations at 1 x IN, resistive

DC 28 V:
0,1...20 A 30 000 operations at 1 x IN, inductive

double pole
AC 240 V:
0,1...16 A 50 000 operations at 1 x IN, inductive
17...20 A 30 000 operations at 1 x IN, inductive

DC 50 V:
0,1...16 A 50 000 operations at 1 x IN, inductive
17...20 A 10 000 operations at 1 x IN, inductive
Interrupting capacity Icn (IEC/EN 60934)
1, 2-pole: IN 0,1 ... 2 A, UN AC 240 V / DC 50 V, Icn 10 x IN
1-pole: IN 2,5 ... 10 A, UN DC 50 V, Icn 50 A
1-pole: IN 2,5 ... 20 A, UN AC 240 V / DC 28 V, Icn 200 A
2-pole: IN 2,5 ... 20 A, UN DC 50 V, Icn 250 A
2-pole: IN 2,5 ... 20 A, UN AC 240 V / DC 28 V, Icn 300 A
Certificates VDE, UL, CSA, CCC, KC

Accessories

Order number Description
Y 312 140 01 plug-in connector
Y 304 275 01 water splash cover black
Y 303 675 01 spacer for -F3/N3...
panel thickness < 2 mm
Y 303 675 02 spacer for -F3/N3...
panel thickness < 4 mm
Y 303 676 01 spacer for -F5/N5...

Applications

  • Household, Hobby & Garden Equipment
  • Industrial equipment control
  • Medical technology

Downloads

Datasheet & Explanations

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