Address
304 North Cardinal St.
Dorchester Center, MA 02124
Work Hours
Monday to Friday: 7AM - 7PM
Weekend: 10AM - 5PM
CM3 MCCB Molded-Case-Circuit-Breaker 63A-800A
JINGE CM3 Series Standard Molded Case Circuit Breaker (Non-Transparent) is a new-generation, high-performance industrial MCCB developed for general industrial and commercial low-voltage power distribution systems. Designed according to IEC 60947-2 international industrial standards, this standard black-shell MCCB offers reliable overload, short-circuit and optional under-voltage protection for main incoming lines, distribution feeders and heavy-duty motor circuits.
CM3 MCCB covers a complete current range from 63A to 800A, suitable for AC 50/60Hz and 400/415V global power grids. Featuring optimized internal mechanical structure, stable thermo-magnetic tripping system and high short-circuit breaking performance, it ensures long-term stable operation in factories, buildings and construction sites. As a cost-effective mainstream industrial circuit protection solution, CM3 is widely recognized by overseas distributors and engineering contractors for its consistent quality and low maintenance rate.
Key Adventages
– New generation optimized industrial MCCB structure: Upgraded mechanical mechanism and arc extinguishing system ensure smoother switching action, higher stability and lower failure rate for long-term continuous operation.
– High short-circuit breaking capacity: Excellent current-limiting and fault-breaking performance effectively protects distribution cabinets, cables, transformers and electrical equipment from sudden short-circuit damage.
– Precise thermo-magnetic tripping protection: Accurate overload long-delay and short-circuit instantaneous tripping, no misoperation or refusal, adapting to complex industrial load changes.
– Industrial-grade flame-retardant black shell: High-strength insulating and heat-resistant material with anti-aging, anti-impact and flame-retardant properties for harsh working environments.
– Full range current and pole options: Complete frame current from 63A to 800A, available in 3P and 4P, fully matching main distribution and branch circuit project requirements.
– Multiple installation and wiring methods: Supports front wiring, rear wiring and plug-in installation, compatible with all standard industrial distribution cabinets worldwide.
– Cost-effective mainstream model for foreign trade: Stable quality, sufficient stock and complete certification documents, ideal for bulk wholesale, project bidding and complete cabinet supporting.
CM3 (M3) Series Molded Case Circuit Breaker – Overview
| Model | Frame Current | Voltage | Application |
|---|---|---|---|
| CM3-63 | 63A | AC 400V | Light distribution, small equipment |
| CM3-100 | 100A | AC 400V | Workshop, small building |
| CM3-225 | 225A | AC 400V | Commercial power, small industry |
| CM3-400 | 400A | AC 400V | Industrial distribution |
| CM3-630 | 630A | AC 400V | Heavy equipment, main line |
| CM3-800 | 800A | AC 400V | Large power distribution |
Technical Specifications
CM3 (M3) Series MCCB – Detailed Technical Parameters
| Item | CM3-63 | CM3-100 | CM3-225 | CM3-400 | CM3-630 | CM3-800 |
|---|---|---|---|---|---|---|
| Frame Current Inm (A) | 63 | 100 | 225 | 400 | 630 | 800 |
| Rated Current In (A) | (6),10,16,20,25,32,40,50,63 | 10,16,20,32,40,50,63,80,100 | 100,125,160,180,200,225 | 225,250,315,350,400 | 400,500,630 | 630,700,800 |
| Rated Insulation Voltage Ui (V) | 500 | 690 | 800 | 690 | 690 | 690 |
| Rated Operating Voltage Ue (V) | 400 | 400 | 230/400 | 400 | 400 | 400 |
| Rated Impulse Withstand Voltage Uimp (kV) | 6 | 6 | 8 | 6 | 6 | 6 |
| No. of Poles | 3/4 | 3/4 | 2/3/4 | 3/4 | 3/4 | 3/4 |
| Breaking Class | L/M | L/M | L/M/H | L/M | L/M | L/M |
| Ultimate Breaking Capacity Icu (kA) AC400V | 10/15/35 | 35/50 | 35/50/65 | 45/65 | 45/65 | 50/65 |
| Service Breaking Capacity Ics (kA) AC400V | 5/10/25 | 25/30 | 25/30/50 | 22.5/32.5 | 22.5/32.5 | 25/32.5 |
| Arc Flash Distance (mm) | ≤50 | ≤50 | ≤50 | ≤100 | ≤100 | ≤100 |
| Operating Cycles / Hour | 120 | 120 | 120 | 60 | 60 | 20 |
| Mechanical Life With Load | 4000 | 3000 | 3000 | 1500 | 1500 | 1000 |
| Mechanical Life No Load | 6000 | 7000 | 7000 | 6500 | 6500 | 4000 |
| Tripping Type | Thermal-magnetic | Thermal-magnetic | Thermal-magnetic | Thermal-magnetic | Thermal-magnetic | Thermal-magnetic |
| Protection Class | IP30 | IP30 | IP30 | IP30 | IP30 | IP30 |
| Standards | GB14048.2, IEC60947-2 | GB14048.2, IEC60947-2 | GB14048.2, IEC60947-2 | GB14048.2, IEC60947-2 | GB14048.2, IEC60947-2 | GB14048.2, IEC60947-2 |
CM3 (M3) Series – Core Features
- High breaking capacity up to 70kA
- Compact and reliable structure
- Thermal-magnetic tripping for accurate protection
- 3P and 4P for wide application
- Fixed and plug-in installation available
- Flame retardant shell, high safety
- Long mechanical and electrical life
CM3 (M3) Series – Typical Applications
Industrial Power Distribution
Commercial Building Power
Motor & Pump Protection
Construction Engineering
Data Center Auxiliary Power
Infrastructure Projects
CM3 standard non-transparent molded case circuit breaker is the most widely used general-purpose industrial MCCB for conventional power distribution applications. It is extensively applied in industrial factory workshops, manufacturing production lines, power distribution rooms, commercial building main power systems, municipal infrastructure, construction site temporary power supply and mechanical equipment supporting projects.
This standard CM3 model is mainly used for main incoming line protection, branch feeder protection and heavy machinery circuit protection. With stable performance, simple structure and cost-effective price, it is the preferred regular MCCB choice for global electrical distributors, low-voltage complete cabinet manufacturers and engineering project contractors.
We'd like to work with you !
Send us a message if you have any questions or request a quote.Our experts will give you a reply within 24 hours and help youselect the right valve you want.