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Schneider GV2ME03 TeSys GV2 Series Motor Circuit Breakers

Schneider GV2ME03 TeSys GV2 Series Motor Circuit Breakers

  • Product Item : GV2ME03
  • Product Brand : Schneider
  • INQUIRY

I. Core Positioning: Dedicated Motor Protector

The GV2ME03 is not an ordinary circuit breaker, but a motor protection circuit breaker, often also called a "motor protection switch" or "thermal-magnetic circuit breaker." It is designed specifically to provide comprehensive and precise protection for three-phase asynchronous motors.

Brand/Series: Schneider Electric's GV2 product line under the TeSys family.

Core Role: Located upstream of the contactor, it provides a comprehensive motor protection solution, integrating isolation, short-circuit protection, and overload protection.

II. Key Features and Technical Advantages

1. Precise Motor Overload Protection

This is its most fundamental difference from ordinary circuit breakers.

Thermal Overload Protection: An internal thermal release simulates the motor's thermal curve. When the current exceeds the set value for a prolonged period due to factors such as motor stall, phase loss, or excessive load, the bimetallic strip will bend due to heat, causing the circuit breaker to trip after an inverse time delay (the higher the current, the shorter the trip time). This effectively prevents the motor from overheating and burning out.

Adjustable Current Range: The GV2ME03's rated current setting range is typically 0.1A - 0.16A (corresponding to the full protection range for micro motors; please refer to official documentation for details). This knob allows you to precisely adjust the setting based on the motor's actual rated current for optimal protection.

2. Reliable Short-Circuit Protection

Electromagnetic Short-Circuit Protection: An internal magnetic trip unit operates instantaneously (in milliseconds) when a short circuit occurs, generating significant current (typically over 10 times the rated current), immediately shutting off power to the motor and protecting downstream contactors, wiring, and other equipment.

3. Integrated Isolation Function

The GV2 motor circuit breaker complies with isolation standards. The handle operating mechanism provides a visible isolation point, allowing it to be used as a manual disconnect switch for the motor, making maintenance and repair convenient and safe.

4. Compact and Modular Design

Space Saving: Isolation, short-circuit, and overload functions are integrated into a compact unit, saving more cabinet space than the traditional "circuit breaker + contactor + thermal relay" solution.

Modular Accessories: Various accessories can be easily added to expand functionality, such as:

Auxiliary Contacts: Used to transmit the circuit breaker status (on/off/fault) to a PLC or indicator light.

Fault Indication Contacts: Specifically designed to signal an overload trip.

Undervoltage Release: Trips the circuit breaker when the voltage is too low.

Side Operator: For remote operation from the cabinet door.

III. Model Explanation: GV2ME03

GV2: Series designation.

M: Indicates thermal-magnetic tripping, providing both thermal overload protection and electromagnetic short-circuit protection.

E: Typically indicates the current range. Different letters (e.g., C, D, E, F, G...) correspond to different maximum rated current ranges. GV2ME typically covers a specific, smaller current range.

03: Specific specification code corresponds to the precise current adjustment range and breaking capacity at a specific voltage.