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Chint NM1 MCCB

Brand Name:Chint
Place of Origin:China
Model Number:NM1
Rated Frequency (Hz):50/60Hz
Breaking Capacity:20kA – 100kA
Rated Voltage:690V
Type:Moulded Case

SKU: 60474198803 Category: Chint MCCB ACB

Where to Use NM1?

The Chint NM1 MCCB is designed for industrial power distribution, commercial building panels, motor protection circuits, and infrastructure projects. With rated current range of 10A - 1250A and AC 690V rating, this molded case circuit breaker provides reliable protection against overload, short-circuit, and undervoltage conditions. Perfect for ensuring electrical safety in demanding environments.

Why Choose NM1 Series?

IEC/EN60947-2 Certified - Complies with international safety standards (CE, KEMA, EAC approved)
Reliable Breaking Capacity - High fault current interruption capability up to 100kA
Flexible Configuration - 3P / 4P pole options, adjustable current settings
Chint Original Quality - Direct from China's leading electrical manufacturer
Easy Maintenance - Modular design allows quick replacement of accessories

Technical Specifications

Parameter	Specification
Model Series	NM1
Type	Molded Case Circuit Breaker (MCCB)
Rated Current	10A - 1250A
Rated Voltage	690V AC
Pole Configuration	3P / 4P
Standard	IEC/EN 60947-2

Frequently Asked Questions

Q: What is the difference between MCCB and ACB?

A: MCCB (Molded Case Circuit Breaker) is used for currents up to 1600A in distribution panels. ACB (Air Circuit Breaker) handles higher currents (1000A-6300A) and is used in main power distribution boards. Choose MCCB for branch circuits and ACB for main incoming power.

Q: How do I select the right current rating?

A: Calculate your maximum load current and add 20-25% safety margin. For motor applications, consider the inrush current (typically 6-8 times rated current). NM1 series offers multiple ratings from 10A - 1250A to match your needs.

Q: Can NM1 be used for motor protection?

A: Yes, NM1 series supports motor protection with adjustable thermal-magnetic trip units. Select a rating that accommodates the motor's starting current while providing overload protection during normal operation.

Need Technical Support? Our engineers can help you select the right model. Contact us at sales@sntelec.com or WhatsApp +86-18019187010.

Description
Additional information

Description

Chint original NM1 Molded Case Circuit Breaker 2P 3P 4P NM1-63S NM1-125S NM1-250S NM1-400S NM1-630S NM1-800S NM1-1250S CHNT MCCB

Application:

For power distribution or protection of the circuits from over-load, short-circuit and under-voltage. In addition, the breaker could be applied to infrequently start the motor and the over-load, short-circuit and under-voltage protection of the motor, as well.

Electric ratings: AC 690V,50/60HZ, 10~1250A;

Certificates: CE, KEMA, UKrSEPRO, EAC, RCC, EK;
Standard: IEC/EN60947-2.

Brand	Chint
Model Number	NM1
Pole	3 Pole, 4 Pole
Rated Current	10A ~ 1250A
Breaking Capacity	25kA, 50kA, 65kA
Delivery Time	10 working days

Additional information

Weight	22 kg
Dimensions	66 × 66 × 66 cm
Rated Current	63A, 80A, 1250A, 125A, 100A, 630A, 160A, 180A, 200A, 250A, 300A, 315A, 350A, 400A, 450A, 500A, 700A, 800A, 1000A
Poles Number	3, 4