18616

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SKU
18616

NG125 - circuit breaker - NG125N - 1P - 50A - C curve



Main
Range of product
NG125
Range
Acti 9
Product name
Acti 9 NG125
Product or component type
Miniature circuit-breaker
Device short name
NG125N
Device application
Distribution
Poles description
1P
Number of protected poles
1
[In] rated current
50 A at 40 °C
Network type
AC

DC
Trip unit technology
Thermal-magnetic
Curve code
C
Breaking capacity
25 kA Icu conforming to EN/IEC 60947-2 - 220...240 V AC 50/60 Hz

25 kA Icu conforming to EN/IEC 60947-2 - 12 V DC

50 kA Icu conforming to EN/IEC 60947-2 - 110...130 V AC 50/60 Hz

6 kA Icu conforming to EN/IEC 60947-2 - 380...415 V AC 50/60 Hz

25 kA Icu conforming to EN/IEC 60947-2 - 125 V DC

20 kA Icu conforming to EN/IEC 60947-2 - <= 144 V DC
Utilisation category
Category A conforming to IEC 60947-2
Suitability for isolation
Yes conforming to IEC 60947-2
Complementary
Network frequency
50/60 Hz
[Ue] rated operational voltage
<= 144 V DC

12 V DC

125 V DC

220...240 V AC 50/60 Hz

380...415 V AC 50/60 Hz

110...130 V AC 50/60 Hz
Magnetic tripping limit
8 x In
[Ics] rated service breaking capacity
37.5 kA at 75 % of breaking cap. conforming to EN/IEC 60947-2 - 110...130 V AC 50/60 Hz

18.75 kA at 75 % of breaking cap. conforming to EN/IEC 60947-2 - 220...240 V AC 50/60 Hz

4.5 kA at 75 % of breaking cap. conforming to EN/IEC 60947-2 - 380...415 V AC 50/60 Hz

25 kA at 100 % of breaking cap. conforming to EN/IEC 60947-2 - 60 V DC

25 kA at 100 % of breaking cap. conforming to EN/IEC 60947-2 - 125 V DC
[Ui] rated insulation voltage
690 V AC 50/60 Hz conforming to EN/IEC 60947-2
[Uimp] rated impulse withstand voltage
8 kV conforming to EN/IEC 60947-2
Contact position indicator
Yes
Control type
Toggle

Manual tripping test
Local signalling
ON/OFF indication

Trip indicator
Mounting mode
Clip-on
Mounting support
35 mm symmetrical DIN rail
Comb busbar and distribution block compatibility
YES
9 mm pitches
3
Height
103 mm
Width
27 mm
Depth
81 mm
Product weight
0.24 kg
Mechanical durability
20000 cycles
Electrical durability
10000 cycles
Provision for padlocking
Padlockable
Locking options description
Integrated padlocking
Connections - terminals
Tunnel type terminals 1.5...50 mm² rigid

Tunnel type terminals 1...35 mm² flexible
Wire stripping length
20 mm
Tightening torque
3.5 N.m
Earth-leakage protection
Without
Environment
Standards
EN/IEC 60947-2
IP degree of protection
IP20 conforming to IEC 60529
IK degree of protection
IK05 conforming to EN/IEC 62262
Pollution degree
3 conforming to IEC 60947-2
Overvoltage category
IV
Tropicalisation
2 conforming to IEC 60068-1
Relative humidity
95 % 55 °C
Ambient air temperature for operation
-30...70 °C
Ambient air temperature for storage
-40...70 °C
Contractual warranty
Warranty period
18 months
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  • What is the power loss per pole for MCBs like c60, c120, NG125, RCCB.

    Refer attachment for learning about the Power Loss Per Pole for MCBs like C60, C120, NG125, RCCB.

  • Can the Multi 9 range MCB be reverse fed.

    Yes, the Multi9 miniature circuit breakers (MCBs) can be fed either from top or bottom without any deterioration of their characteristics.

     

    Refer attachment for declaration of conformity about the same.

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User guide
  • file image NG125 circuit-breakers (pdf) download image`
Instruction sheet
  • file image Instructions NG125 (pdf) download image`
CAD
  • file image NG125 1P (zip) download image`
  • file image NG125 1P (stp) download image`
End of life manual
  • file image NG125 TETRA-NG125 TRI _ EoLi (pdf) download image`
Product environmental
  • file image Product Environmental Profile NG125 Circuit Breaker (pdf) download image`
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