NYM1 Series Molded Case Circuit Breaker
NYM1 molded case circuit breaker (MCCB), 63–630A, 3P/4P, 25–50kA breaking capacity, IEC 60947-2 compliant for distribution and motor protection.
Product Introduction
The NYM1 Series is our core molded case circuit breaker for low-voltage distribution. Available in frame sizes from 63A to 630A with thermal-magnetic or electronic trip units, it protects circuits and equipment against overload, short circuit and undervoltage faults in industrial, commercial and building installations.
Key Features
- Thermal-magnetic trip unit, adjustable thermal setting on request
- Breaking capacity up to 50kA at 400VAC
- 3P and 4P versions, fixed / plug-in / draw-out mounting
- Wide range of accessories: shunt trip, auxiliary contacts, motor operator
- Complies with IEC 60947-2 / GB 14048.2
Typical Models
Representative models — the full model list with exact ratings is available on request.
| Model | Rating / Key Spec | Availability |
|---|---|---|
| NYM1-63 | 63A frame, 25kA | Stock |
| NYM1-225 | 225A frame, 36kA | Stock |
| NYM1-630 | 630A frame, 50kA | 2 weeks |
| NYM2-1250 | 1250A frame, 65kA | 3–4 weeks |
Ask us for the complete model list, data sheets and cross-reference support. Request catalog →
Technical Specifications
| Parameter | Value |
|---|---|
| Rated frame current | 63 / 100 / 225 / 400 / 630 A |
| Rated current range | 10–630A (adjustable) |
| Poles | 3P, 4P |
| Rated voltage | AC 400V / 690V |
| Breaking capacity | 25kA / 36kA / 50kA @400VAC |
| Standard | IEC 60947-2 · GB/T 14048.2 |
| Mounting | Fixed / plug-in / draw-out |
| Accessories | Shunt trip, undervoltage release, auxiliary, alarm, motor operator |
| Certifications | CE; CCC available |
Specifications are typical values — send us your requirements for the exact data sheet and model list.
Frequently Asked Questions
Which accessories are available for the NYM1?
Shunt trip, undervoltage release, auxiliary contacts, alarm contacts, motor operators, rotary handles and plug-in kits.
Can I get my own brand printed on the MCCB?
Yes. Private labeling on the breaker front cover, packaging and manuals is available for OEM orders.
Do you provide the IEC 60947-2 type test report?
Yes, the type test certificate for the exact model and breaking capacity is available to verified buyers.