NBSM8-125 Series 3 Phase Plug Fuse Circuit Breaker Thermal / Magnetic Release

Basic Information
Place of Origin: CHINA
Brand Name: NBSe
Certification: CCC,ISO9000
Model Number: NBSM8-125
Minimum Order Quantity: 100pcs
Price: Negotiable
Packaging Details: Export Packing
Delivery Time: 10-20 days
Payment Terms: L/C, T/T, Western Union
Supply Ability: 400,000pcs per month
Detail Information
Material: PA66 Color: Black/White
Type: Mini Rated Frequency: 50/60Hz
Rated Voltage: 110V/220V/440V Icn: 10kA
Standard: EN/IEC60947-2 Tripping Type: Thermal/magnetic Release
Protection: Overload And Short Circuit Usage: Low Voltage,Automotive,Thermal
Operating Temperature: -35℃-65℃
High Light:

plug trip switch


plug in type circuit breaker

Product Description

NBSe NBSM8-125 Series 3P 30A Plug-in type circuit breaker, 3 phase circuit breaker




The NBSM7-100 Plug-in type breaker is characterized by compact design, light weight, elegant appearance, high breaking capacity, swift releasing, long service life, Different handle color for different rated current, with contactor condition indicator.



Normal operation condition


The circuit breaker could be used in the following working conditions:

A. Ambient air temperature not higher than +40 ℃ and not lower than -5 ℃.

B. Altitude no more than 2000m

C. The relative air humidity is not more than 50% in the max at the temperature of +40 ℃. The higher relative humidity is allowable at the lower temperature. The lowest monthly average temperature not higher than 25 ℃ in the most moist month and the max relative humidity should be no more than 90%.

D. Pollution degree:Grade 3. Three is no explosion factor, corrosive metal and the gas destroying the insulation and the electric dust.

E. Installation type:Ⅲ

F. The terminals of 1,3,5,N1 should be connected with the power supply and the terminals of 2,4,6,N2 should be connected with the load. Reverse wiring is forbidden.




Technical Data
♦ Standard:Confirming to EN / IEC60947-2
♦ Breaking capacity:10kA
♦ Protection:Against overload and short circuit
♦ Rated current In:15,20,30,40,50,63,80,100A
♦ Rated voltage:
◊ 1pole 230/400V AC 50/60Hz
◊ Rated insulation voltage Ui: 500V
◊ Rated impulse withstand voltage Uimp: 6000V
◊ Energy limiting class: 3
♦ Ambient temperature:-5°C to +40°C pursuant to EN / IEC60947
♦ Characteristic:
◊ Thermal operating limit: (1.13-1.45) x In
◊ Magnetic operating: B: (3-5) x In,C: (5-10) x In,D: (10-20) x In
♦ Number of poles:1P,2P,3P, 4P
♦ Type of trip:Thermal / magnetic release
♦ Type of terminal:Lug type and Pin type
♦ Terminal capacity:
◊ 16mm² flexible or 25mm² rigid up to 25A ratings
◊ 25mm² flexible or 35mm² rigid for 32A to 63A ratings
♦ Protection degree:IP20
♦ Installation:DIN rail
♦ Width:27mm per pole


What is the difference between Plug-in and Fixed Circuit Breaker ?

The plug-in version makes it possible to:

  • Extract and/or rapidly replace the circuit breaker without having to touch the connections on the base
  • Allow for the addition of future circuits by installing bases that will be equipped with a circuit breaker at a later date
  • Isolate the power circuits when the device is mounted on or through a panel. It acts as a barrier for the connections of the plug-in base. Insulation is made complete by the mandatory short terminal shields on the device.The degrees of protection are: circuit breaker plugged in = IP4
    circuit breaker removed = IP2
    circuit breaker removed,base equipped with shutters = IP4.


5. Our Services

(1) Warranty ( 24 months warranty )

1. The warranty starts from the delivery date from our factory;

2. During the warranty, any defective product will get repaired or replaced for free ;

3. It is beyond the warranty as the products breaked by the violence , the carelessness or repaired , altered without authorization.


(2) Lead Time

1. Sample orders will be delivered from our factory within 7 working days.

2. General orders will be delivered from our factory within 7-15 working days.

3. Bulk orders will be delivered from our factory within 25 working days at most


(3) Shippment

1. By EMS, DHL, FedEx, TNT, UPS or other express.

2. By our forwarding agent (by air or by sea).

3. By your own forwarding agent.

4. By domestic forwarding agents to any city in China

Contact Details

Phone Number : +8613587466174

WhatsApp : +8613587466174