CM1 Moulded Case Circuit Breaker

This DAM2 (CM1) series CM1 Moulded Case Circuit Breaker is a high-performance low-voltage protection device produced by Shanghai DADA Electric Co., Ltd., a reliable manufacturer and supplier in China. With rated insulation voltage up to 800V, rated working voltage 400V/690V, and rated current from 63A to 1600A, it is widely used for power distribution, circuit protection, motor control and infrequent switching.

This series supports vertical and horizontal installation, complies with IEC60947-2 standard, and provides complete overload, short-circuit and under-voltage protection for power equipment.

Product Features

★ Rated insulation voltage: 800V; Working voltage: 400V/690V

★ Current range: 63A, 100A, 225A, 400A, 630A, 800A, 1250,1600A

★ Breaking capacity: L standard, M medium, H high breaking type

★ Thermal-magnetic & electromagnetic dual release modes

★ Vertical / horizontal installation, suitable for isolation use

★ Wide ambient temperature range: -5℃~+40℃

★ Altitude ≤2000m, pollution degree 3

Applications

CDADA CM1 Moulded Case Circuit Breaker is widely applied in industrial and civil power distribution systems, including factories, buildings, data centers, power stations, infrastructure, mechanical equipment, and power distribution cabinets. It is also used for motor protection, circuit conversion, and safe power supply in construction, metallurgy, petrochemical and other industries.

Technical Parameters

★ Standards: IEC60947-2, GB14048.2

★ Frequency: AC 50Hz/60Hz

★ Pole: 1P,2P, 3P, 4P

★ Release: Thermal-magnetic (double), electromagnetic (instantaneous)

★ Instantaneous setting: Distribution type 10In±20%; Motor type 12In±20%

★ Installation: Front wiring, rear wiring, plug-in type

★ Operation: Manual, electric operating mechanism

Outline & Installation Dimensions

Our CM1 MCCB provides complete dimension data for 63A–1600A models, including front wiring, rear wiring and plug-in type. Different frame sizes (63/100/225/400/630/800/1250/1600) have matched H, H1, H2 dimensions for standard cabinet installation. Manual and electric operating mechanism height is also standardized for easy assembly.

Accessories & Functions

Internal Accessories

★ Shunt release: 70%–110% rated voltage for reliable tripping

★ Under-voltage release: 35%–70% voltage drop for automatic protection

★ Auxiliary contact & alarm contact: Signal feedback and fault alarm

★ Pre-paid meter dedicated release: Delay tripping 0.5–2s

External Accessories

★ Manual operating mechanism

★ Electric (motor) operating mechanism

★ Phase separators, mounting screws, busbars kits

Quality Control Flow

Raw material inspection → Production processing → Assembly line → Trip characteristic test → Temperature rise test → Short-circuit test → Aging test → Appearance & dimension check → Packaging → Final inspection before shipment

Packaging & Shipping

★ Standard export carton + wooden pallet for safe transportation

★ Label: model, current, pole, quantity, certificate

★ Suitable for sea, air and land logistics

Certifications

IEC60947-2, GB14048.2, CE, CB, ROHS and other international approvals.

Customer Cooperation Cases

CDADA DAM2 series MCCB has been supplied to global customers, including power distribution system integrators, industrial equipment manufacturers, switchgear factories, construction contractors and OEM brands in Europe, Southeast Asia, Middle East, Africa and South America. We provide stable bulk supply and customized solutions for long-term partners.