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: Typ 3120-N...-...M1-...

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 double pole
single 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

Download Brochure

Never replace a fuse again!

Thermal circuit breakers

Virtual Assistant
Quickselect: Products Jobs Support About E-T-A
Call An Expert
Sie haben Fragen, Anregungen oder Wünsche? Wir beraten Sie gerne.