GV2 2P Motor Protection Circuit Breaker

Simplify motor protection with the CDADA GV2 2P Motor Protection Circuit Breaker (MPCB) a high-precision, compact solution engineered by Shanghai DADA Electric CO., LTD. using a next-generation technology platform and fully automated production. Designed for single-phase or two-phase motor circuits, the GV2 2P integrates overload, short-circuit, phase-loss (for 3-phase applications when used in sets), and isolation functions in one DIN-rail mounted device.

With an adjustable setting range of 0.1A to 32A, thermal compensation for ambient temperature variations, and a rated insulation voltage of 690V, it ensures reliable protection for small motors in pumps, fans, compressors, conveyors, and HVAC systems. Certified to CE standards, featuring 110,000 mechanical and electrical operations, and equipped with optional accessories like auxiliary contacts, shunt release, and undervoltage release, the CDADA GV2 MPCB delivers industrial-grade performance in a space-saving 2-pole format.

Key Specifications

Model Series: GV2 2P MPCB

Brand: CDADA | Manufacturer: Shanghai DADA Electric CO.,LTD

Certification: CE

Poles: 2P (ideal for single-phase motors or as part of 3-phase protection set)

Setting Current Range: 0.1A – 32A (adjustable via dial)

Frame Rating: 32A

Rated Operating Voltage: 690V AC

Rated Insulation Voltage (Ui): 690V

Impulse Withstand Voltage (Uimp): 6000V

Operating Frequency: 50/60Hz

Trip Class: 10A (standard for general-purpose motors)

Protection Functions:

★ Thermal overload protection

★ Short-circuit protection

★ Phase-loss protection* (*when used in 3-pole configuration or coordinated set)

★  Isolation function (visible break)

★ Built-in temperature compensation

Mechanical Life: 110,000 operations

Electrical Life (AC-3, 400V): 110,000 operations

Tightening Torque: 1.7 N·m

Operation Type: Push-button ON/OFF with clear trip indicator

Mounting: 35mm DIN rail

Technical Data sheet

Why Choose CDADA GV2 2P Motor Protection Circuit Breaker?

★ All-in-One Motor Protection

Combines circuit breaker + thermal overload relay + isolator—eliminates need for separate components.

★ Precision & Stability

Temperature-compensated mechanism ensures consistent tripping regardless of ambient changes (e.g., hot workshops or cold basements).

★ High Durability

110,000 mechanical/electrical cycles—outperforming many competitors in long-term reliability.

★ Space-Saving 2P Design

Ideal for compact control panels, OEM machinery, and retrofit projects where panel real estate is limited.

★ Full Accessory Ecosystem

Supports AE (front auxiliary), AN (side auxiliary), AU (undervoltage release), AS (shunt trip)—enabling remote signaling, auto-shutdown, or PLC integration.

★  Global Compliance

CE certified with 690V rating—suitable for European, Asian, African, and Latin American markets.

★ Consistency is ensured through automated production equipment, standardized operating procedures, rigorous incoming material inspection, in-process testing, and final 100% functional testing for critical parameters.

Typical Applications

Single-Phase Motors: Pumps, garage door openers, small compressors

OEM Machinery: Packaging machines, food processing equipment

HVAC Systems: Fan coil units, small chillers

Building Automation: Elevator auxiliaries, ventilation controls

Retrofit Projects: Replacing fuses + thermal relays with integrated MPCB

Frequently Asked Questions

Q1: What’s the difference between an MPCB and a standard circuit breaker?

A1: A Motor Protection Circuit Breaker (MPCB) like GV2 provides:

● Adjustable thermal overload protection (matched to motor FLC)

● Magnetic short-circuit protection

● Phase-loss detection (in 3P versions)

● Isolation function

→ Standard MCBs only offer short-circuit and fixed overload protection—not motor-optimized.

Q2: Can a 2P GV2 protect a 3-phase motor?

A2: Not alone. For 3-phase motors, you need three GV2 units (one per phase) coordinated together, or use a 3P MPCB. However, 2P GV2 is perfect for single-phase motors or control circuits.

Q3: What does “Trip Class 10A” mean?

A3: It defines how fast the breaker trips under overload. Class 10A means it will trip within 10 seconds at 7.2× setting current—ideal for standard squirrel-cage motors without high starting torque.

Q4: Does it really compensate for temperature?

A4: Yes! The bimetallic strip is thermally compensated, so tripping remains accurate whether installed in a 0°C warehouse or 50°C enclosure.

Q5: Why choose CDADA GV2 over other brands?

A5: CDADA offers:

● True CE certification with test reports

● Automated production → consistent quality & low defect rate

● Full accessory compatibility (AE/AN/AU/AS)

● Competitive pricing for OEMs and distributors

● Fast technical support and documentation in English