GV2 0.1~80A(adjustable) Motor Protection Circuit Breaker MPCB

GV2 0.1~80A(adjustable) Motor Protection Circuit Breaker MPCB

The LVMA GV2 is a 3-pole motor protection circuit breaker (MPCB) combining adjustable overload, short-circuit protection, and manual START/STOP control for three-phase AC motors. DIN rail mount, AC-3 rated, ideal for pumps, fans, and industrial machinery.

The LVMA GV2 is a 3-pole motor protection circuit breaker (MPCB) combining adjustable overload, short-circuit protection, and manual START/STOP control for three-phase AC motors. DIN rail mount, AC-3 rated, ideal for pumps, fans, and industrial machinery.

1. Product Overview

The GV2 is a compact, 3-pole motor protection circuit breaker (MPCB) designed to provide integrated control and protection for three-phase AC motors. Combining overload, short-circuit, and isolation functions in one device, it eliminates the need for separate contactors and thermal relays in basic motor control circuits. With adjustable current settings (4–6.3A) and AC-3 utilization category rating, this MPCB is ideal for direct-on-line (DOL) motor starting and protection in industrial machinery, pumps, fans, and conveyor systems.

2. Key Specifications

Parameter Details
Model GV2
Rated Current Range 0.1-80A (adjustable)
Poles 3P
Rated Operational Voltage (Ue) AC 690V / 50/60Hz
Rated Insulation Voltage (Ui) AC 690V
Rated Impulse Withstand Voltage (Uimp) 6kV
Short-Circuit Breaking Capacity 100kA (at 400V)
Utilization Category AC-3 (motor starting/stopping)
Protection Functions Overload protection, Short-circuit protection, Manual isolation
Reset Mode Manual (red STOP / black START buttons)
Mounting Type 35mm DIN rail mount
Compliance Standards IEC 60947-2, IEC 60947-4-1
Operating Temperature -20°C ~ +60°C
Mechanical Life ≥100,000 operations
Electrical Life (AC-3) ≥100,000 operations at rated load

3. Core Features

Adjustable Overload Protection: Rotary dial for precise setting of motor full-load current (0.1-80A) to match specific motor ratings.

Integrated Short-Circuit Protection: Fast-acting magnetic trip element provides instant protection against short-circuit faults.

Combined Control & Protection: Replaces separate contactors and thermal relays, reducing component count and wiring complexity.

Manual START/STOP Operation: Color-coded buttons (black START / red STOP) for safe local motor control and emergency shutdown.

Isolation Function: The OFF position provides visible electrical isolation for maintenance safety.

High Breaking Capacity: 100kA short-circuit withstand at 400V ensures system stability during severe faults.

DIN Rail Mount Design: Compact form factor fits standard 35mm DIN rails, ideal for motor control centers and distribution panels.

Test Function: Built-in TEST button allows periodic verification of overload protection functionality.

4. Applications

  • Direct-on-line (DOL) motor starting for pumps, fans, and compressors
  • Industrial machinery and conveyor systems
  • HVAC equipment and ventilation systems
  • Motor control panels and machine tools
  • Small to medium-sized three-phase AC motors (0.75–30kW range)
  • Agricultural and industrial equipment motor circuits

5. Why Choose LVMA GV2 MPCB?

  • All-in-One Solution: Combines motor control, overload, and short-circuit protection in a single compact device, saving panel space and installation time.
  • Precise Protection: Adjustable current setting ensures optimal protection tailored to the motor’s specific rating.
  • Reliable Performance: Compliant with IEC 60947 standards, with high short-circuit breaking capacity and long mechanical/electrical life.
  • User-Friendly Operation: Clear START/STOP buttons and visible trip status simplify troubleshooting and maintenance.
  • Cost-Effective: Eliminates the need for additional contactors and relays, reducing overall system cost and complexity.
  • Global Compatibility: Designed for use in 50/60Hz AC systems, suitable for industrial applications worldwide.

6. Technical Documents & Support

  • Download the full datasheet for detailed specifications, wiring diagrams, and motor compatibility charts.
  • Contact our engineering team for custom configurations or OEM solutions for large-scale projects.
  • Request a quote with your project details for bulk pricing, lead times, and compliance certifications.

1. Product Overview

The GV2 is a compact, 3-pole motor protection circuit breaker (MPCB) designed to provide integrated control and protection for three-phase AC motors. Combining overload, short-circuit, and isolation functions in one device, it eliminates the need for separate contactors and thermal relays in basic motor control circuits. With adjustable current settings (4–6.3A) and AC-3 utilization category rating, this MPCB is ideal for direct-on-line (DOL) motor starting and protection in industrial machinery, pumps, fans, and conveyor systems.

2. Key Specifications

Parameter Details
Model GV2
Rated Current Range 0.1-80A (adjustable)
Poles 3P
Rated Operational Voltage (Ue) AC 690V / 50/60Hz
Rated Insulation Voltage (Ui) AC 690V
Rated Impulse Withstand Voltage (Uimp) 6kV
Short-Circuit Breaking Capacity 100kA (at 400V)
Utilization Category AC-3 (motor starting/stopping)
Protection Functions Overload protection, Short-circuit protection, Manual isolation
Reset Mode Manual (red STOP / black START buttons)
Mounting Type 35mm DIN rail mount
Compliance Standards IEC 60947-2, IEC 60947-4-1
Operating Temperature -20°C ~ +60°C
Mechanical Life ≥100,000 operations
Electrical Life (AC-3) ≥100,000 operations at rated load

3. Core Features

Adjustable Overload Protection: Rotary dial for precise setting of motor full-load current (0.1-80A) to match specific motor ratings.

Integrated Short-Circuit Protection: Fast-acting magnetic trip element provides instant protection against short-circuit faults.

Combined Control & Protection: Replaces separate contactors and thermal relays, reducing component count and wiring complexity.

Manual START/STOP Operation: Color-coded buttons (black START / red STOP) for safe local motor control and emergency shutdown.

Isolation Function: The OFF position provides visible electrical isolation for maintenance safety.

High Breaking Capacity: 100kA short-circuit withstand at 400V ensures system stability during severe faults.

DIN Rail Mount Design: Compact form factor fits standard 35mm DIN rails, ideal for motor control centers and distribution panels.

Test Function: Built-in TEST button allows periodic verification of overload protection functionality.

4. Applications

  • Direct-on-line (DOL) motor starting for pumps, fans, and compressors
  • Industrial machinery and conveyor systems
  • HVAC equipment and ventilation systems
  • Motor control panels and machine tools
  • Small to medium-sized three-phase AC motors (0.75–30kW range)
  • Agricultural and industrial equipment motor circuits

5. Why Choose LVMA GV2 MPCB?

  • All-in-One Solution: Combines motor control, overload, and short-circuit protection in a single compact device, saving panel space and installation time.
  • Precise Protection: Adjustable current setting ensures optimal protection tailored to the motor’s specific rating.
  • Reliable Performance: Compliant with IEC 60947 standards, with high short-circuit breaking capacity and long mechanical/electrical life.
  • User-Friendly Operation: Clear START/STOP buttons and visible trip status simplify troubleshooting and maintenance.
  • Cost-Effective: Eliminates the need for additional contactors and relays, reducing overall system cost and complexity.
  • Global Compatibility: Designed for use in 50/60Hz AC systems, suitable for industrial applications worldwide.

6. Technical Documents & Support

  • Download the full datasheet for detailed specifications, wiring diagrams, and motor compatibility charts.
  • Contact our engineering team for custom configurations or OEM solutions for large-scale projects.
  • Request a quote with your project details for bulk pricing, lead times, and compliance certifications.

Data Download

LVMA low voltage selection manual

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