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QYM2 4P Molded Case Circuit Breaker 100A 125A 160A 250A 400A 630A 1600A

Moulded Case Circuit Breaker (MCCB) provides protection function for overload and short circuit in low-voltage distribution system and motor protection circuit to ensure electrical equipment and personal safety. Switch on and off the normal circuit, and can quickly trip when the circuit fails.

Online Inquiry

Q: How can I get the sample to check your quality?

A: After price confirmation, you can require for samples to check our product’s quality. If you just need a blank sample to check the design and quality. We will provide you sample for free as long as you afford the express freight.

Q: What can I get the price?

A: We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price, please tell us in your email so that we will regard you inquiry priority.

Q: What is your term of delivery?

A: We accept FOB,CNF and CFR . You can choose the one which is the most convenient or cost effective for you.

Q: What about the lead time for the mass production?

A: Honestly, it depends on the order quantity and the season you place the order.





The moulded case circuit breaker will provide protection for the circuit and equipment in case of overload.short circuit and under voltage condition occurred in the power distribution circuit. Besides, it can alsoprovide protection of overload, short circuit and under voltage for the nonfrequent start of motor.

Function (Moulded Case Circuit Breaker)

1.Overload Protection.
2.Electrical Fault Protection against short circuit currents.
3.Electrical Switch for disconnection.
QYM2 Series (MCCB)

Technical Parameters

Model: QYM2
Place of Origin: Zhejiang China
Brand Name: JOYELEC
Compliant standards: IEC 60947-2
Rated curent: 32A 40A 50A 63A 80A 100A 125A,160A,200A ,250A 320A,400A,630A,800A,1000A,1250A,1600A,2000A;
Rated voltage: 220V/230V/240V, 380V/400V/415V, 500V ,69OV
Frequency: 50/60Hz;
Thermal magnetic release: B, C, D;
Number of poles: 4P
Mechanical life: 20000 cycles;
Electrical life: 10000 cycles;
Rated short-circuit breaking capacity(lcu): 25KA,35KA,50KA,75KA( 220V/230V/240V)
Short-circuit breaking capacity (lcs): 18KA,25KA,35KA,50KA( 220V/230V/240V)
Rated insulation voltage Ui: 800V
Rated impulse withstand voltage (Uimp): 8kV

Nameplate Interpretation

Product type: Frame size, breaking capacity, poles number
Ui: Rated insulation voltage
Frequency of A.C.
Uimp: Rated impulsive withstand voltage
Ue: Rated operational voltage The product is in conformity with standard lEC/EN 60947.2
lcu/lcs: Ultimate short circuit breaking capacity/Service short circuit breaking capacity
+40'℃ : Ambient temperature Electrical symbol for circuit breaker with isolating function
Cat A: Utilization category of breaker
In: Rated operational current
li: 10ln Multiple of current of transient behavior
The product is in conformity with standard IEC/EN 60947-2