Type 8340-G2

Type 8340-G2


Single, two and three pole magnetic circuit breakers with trip-free mechanism and push/pull on/off manual actuation. A choice of fast magnetic only or hydraulically delayed switching characteristics (Stype MO or HM CBE to EN 60934) ensures suitability for a wide range of applications. Convenient threadneck panel or plug-in mounting, and with a white push button indicator band showing clearly the tripped/off position. Available with auxiliary contacts (1 x N/O, 1 x N/C) for status signalling and fitted with an unprotected shunt tap terminal as standard.

Approved to CBE standard EN 60934 (IEC 60934).

Technical Data

Voltage rating
  • 3 AC 415 V
  • AC 240 V (50/60 Hz)
  • DC 80 V
  • UL/CSA: AC 250 V
Current ratings from 0.02 A up to 50 A  single pole (40 + 50 A DC only)
from 0.02 A up to 30 A  multipole
Number of poles double pole
single pole
three pole
Mounting method socket
Terminal design blade terminals
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 10,000 operations at 1 x IN, resistive, 1 pole

5,000 operations at 1 x IN, resistive, 2 pole

Interrupting capacity Icn 6 x IN at AC

4 x IN at DC

Certificates VDE, CSA, UL, CCC


Order number Description
18-P10-Si/-20025 socket
X20080103 splash cover black with O-ring
X20080108 splash cover transparent with O-ring
X20080201 splash cover black with O-ring,

nickel plated nut

X20080202 splash cover black with O-ring,

matt black finish nut

X20080301 actuator extension
X21058801-04 Connector bus links -P10

01 = 1.5 mm2 brown


02 = 2.5 mm2 black


03 = 2.5 mm2 red


04 = 2.5 mm2 blue

X21115801 busbar with terminal
X21115802 busbar without terminal
Y30011602 hex nut
Y30011803 lock washer
Y30057911 retaining clip for socket 18-P10-Si
Y30382411 insulation sleeving for busbar


  • Automation
  • Minus DC 28 V
  • Minus DC 48 V
  • Minus DC 72 V
  • Rail vehicles
  • Telecom & Datacom
  • Watercraft & Vehicles
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