CHINT NM1-1250S/3300 3-Pole 1250A MCCB

Name: CHINT NM1-1250S/3300 3-Pole 1250A MCCB
Brand: CHINT
SKU: 1600687686417
Availability: InStock

Brand Name:Chint
Place of Origin:China
Model Number:NM1-1250
Rated Frequency (Hz):50/60Hz
Breaking Capacity:65kA – 85kA
Rated Voltage:690V
Type:Moulded Case

SKU: 1600687686417 Category: Others

Where to Use NM1?

The CHINT NM1-1250S/3300 3-Pole 1250A MCCB is designed for industrial power distribution, commercial building panels, motor protection circuits, and infrastructure projects. With rated current range of 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	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 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 NM1-1250S/3300 NM1-1250H/3300 NM1-1250S/4300B NM1-1250H/4300B 3P 4P 1000A 1250A CHNT NM1 Molded Case Circuit Breaker

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.