Motor Protection Circuit Breaker

Provide all-in-one motor protection with the HGV2 series. Rated up to 690V, current range 0.1A-63A. Combines overload, phase failure, and short-circuit protection. Adjustable thermal trip, fixed magnetic trip. Push-button or rotary control. Compact design saves panel space.

HGV2 Series

63A Adjustable Motor Protection | 690V Phase Failure & Short-Circuit Protection

The HGV2 Series Motor Protection Circuit Breaker (MPCB) is designed for AC systems up to 690V, covering a wide adjustable current range from 0.1A to 63A. It provides comprehensive protection against overload, phase failure, and short‑circuit faults, and supports infrequent start/stop control of squirrel cage asynchronous motors. With CE certification and IEC compliance, it operates reliably from -5°C to +40°C and features environmentally friendly recyclable components.

HGV3 Series

80A Motor Protection Circuit Breaker with Isolator

The HGV3 motor protection circuit breaker (MPCB) is specifically designed for 3‑phase motors. It provides comprehensive protection against overload, phase loss, and short‑circuit faults, supports infrequent motor starting, and operates with AC voltages up to 690V and adjustable currents from 0.1A to 80A. Fully compliant with international standards, it also functions as an isolator for electrical line protection and load transfer.

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Select Your Motor Protection Circuit Breaker

Rated operational voltage up to 690V, current range 0.1A – 63A. Provides overload, phase failure, and short-circuit protection for squirrel cage asynchronous motors. Offers push-button or rotary switch control, with adjustable thermal trip and fixed magnetic trip.

Motor-Specific Protection (Overload, phase fail, short-circuit)
Adjustable Thermal Trip
High Breaking Capacity
Compact Design (Saves panel space)

Motor Protection Circuit Breaker Parameter Overview

Model	Control Type	Current Range (A)	Motor Power at 400V (kW)	Magnetic Trip Current (A)	Width (mm)
HGV2-M2002	Push button	0.16-0.25	0.09	2.4	45
HGV2-M2004	Push button	0.40-0.63	0.25	8	45
HGV2-M2006	Push button	1.6-2.5	1.1	22	45
HGV2-M2010	Push button	6-10	4	78	45
HGV2-M2016	Push button	13-18	7.5	170	45
HGV2-RS3220	Rotary switch	20-25	11	227	45
HGV2-RS3232	Rotary switch	24-32	15	290	45

Quality You Can Rely On

The HGV2 series complies with IEC/EN 60947-2 and 60947-4-1. Our partner factories are ISO9001 certified, and each unit is tested to ensure reliable motor protection under starting and fault conditions.

Regarding the Q&A on Motor Protection Circuit Breaker

What is the difference between push-button and rotary switch control?

Push-button models (e.g., HGV2-M20) have a green start / red stop button for local control. Rotary switch models (e.g., HGV2-RS32) have a knob that can be padlocked in the off position for safety during maintenance.

How do I set the correct thermal trip current for my motor?

Set the dial to match the motor’s full load current (FLA) printed on the nameplate. If the motor trips during normal running, increase the dial by 5%. If it doesn’t trip during a sustained overload, decrease by 5%.

Will the HGV2 protect against single-phasing (phase loss)?

Yes. The HGV2 series includes a phase failure/phase imbalance protection mechanism. If one phase drops, the device will trip within a few seconds, preventing motor burnout.

Can I use the HGV2 as a manual motor starter (MMS)?

Yes. The HGV2 series is designed as a manual motor starter. It provides both isolation and overload/short-circuit protection in one compact unit, replacing a separate contactor + overload relay + fuse combination.

What is the magnetic trip current, and can I adjust it?

The magnetic trip (short-circuit protection) is fixed at approximately 10-14 times the thermal trip setting (e.g., for a 10A setting, magnetic trip ~100-140A). This is non-adjustable and designed to allow motor starting inrush currents without tripping.