GV2-ME20C from Schneider Electric thermomagnetic circuit breaker

GV2-ME20C from Schneider Electric is a thermomagnetic cortacircuitos specifically designed for motor protection. It is suitable for AC circuits with a frequency of 50/60Hz and a voltage up to 690V, providing short-circuit protection, protección contra sobrecarga, phase-failure protection, and direct control functions.

I. Basic Parameters and Functions

1. Corriente nominal

Configuración del rango actual: 13-18A, suitable for three-phase motors with a power of approximately 9kW.

Magnetic Tripping Current: 223A (about 12.4 veces la corriente nominal), enabling rapid response to short-circuit faults.

2. Características de disparo

Unidad de disparo termomagnética: Combines long-time delay protection against overload (via thermal element) and instantaneous protection against short-circuit (via electromagnetic element).

Tripping Class: Complies with IEC Standard Class 10A, ensuring the overload current is cut off within 10 artículos de segunda clase.

3. Structure and Protection

3-Pole (3PAG) Design: Con un ancho de sólo 45 mm., it saves installation space.

Protection Rating: IP20 (for the main unit) and IP55 (when equipped with a waterproof box), supporting dustproof and waterproof environments.

4. Certificaciones y cumplimiento

– Certified by CE and CCC, meeting international and Chinese electrical safety standards.

II. Core Functions and Application Scenarios

1. Comprehensive Protection Capabilities

Protección contra cortocircuitos: Boasts an interrupting capacity of up to 15kA, which can quickly cut off short-circuit current to prevent equipment damage.

Protección contra sobrecarga: Built-in thermal relay triggers tripping through the deformation of bimetallic strips, responding to motor overheating.

Protección contra fallo de fase: Automatically detects three-phase current imbalance to prevent motor burnout due to phase failure.

2. Control and Expansion

Operación Manual: Button-type control, supporting local start/stop and locking functions.

Mando a distancia: Can be equipped with an Under-Voltage Release (UVR) or Shunt Trip Release (SHR) to realize remote tripping.

Expansión de accesorios: Supports auxiliary contacts (p.ej., GVAE11, GVAN11) and adapters (p.ej., GV2-AF3), which can be combined with contactors to form a complete starter system.

3. Aplicaciones típicas

Campo industrial: Direct starting and protection of motors for pumps, fans, compresores, etc..

Commercial Scenarios: Equipment with high reliability requirements, such as food processing machinery and packaging machinery.

III. Technical Details and Installation

1. Adaptabilidad ambiental

Temperatura de funcionamiento: -20℃ a +60℃, with a built-in temperature compensation function to ensure stability in different environments.

Storage Temperature: -40℃ to +80℃, adapting to extreme transportation and storage conditions.

2. Método de instalación

Montaje en carril DIN: Compatible with TH35-7.5mm rails, supporting vertical or horizontal fixing.

Método de cableado: Screw-in terminals, suitable for wires with a cross-sectional area of 2.5mm² or less, with a tightening torque of 1.7N·m.

3. Service Life and Maintenance

Vida mecánica: 100,000 operaciones; Vida eléctrica: 100,000 operaciones (bajo ciclo de trabajo AC-3), significantly higher than that of ordinary circuit breakers.

Modular Design: Facilitates maintenance and replacement of components.

IV. Price and Procurement

1. Precio de mercado

Retail Price per Unit: Aproximadamente 126-180 RMB (data as of 2025). Discounts are available for bulk purchases.

2. Modelos alternativos

– For higher current requirements, GV2-ME21C (17-23A) or GV3-ME20 (10-16A) se puede seleccionar.

– For intelligent requirements, an upgrade to models with electronic trip units in Schneider’s TeSys series can be considered.

V. Selección y precauciones

1. Coincidencia actual

– Select the setting range based on the rated current of the motor, and it is recommended to reserve a 10%-20% margin to cope with load fluctuations.

2. Curva de disparo

– The thermomagnetic tripping curve (magnetic tripping at 12.4×In) is suitable for the inrush current characteristics of motors, avoiding frequent false tripping.

3. Entorno de instalación

– Ensure the installation location has good ventilation, and avoid high-temperature or humid environments that may affect the accuracy of thermal protection.

VI. Certification and Compliance Inquiry

– The compliance of the product can be verified by accessing the “Product Certificate Inquiry” function on Schneider Electric’s official website and entering the model or CCC certificate number (p.ej., 2003010304032561).

For further technical support or customized solutions, it is recommended to contact the local service center of Schneider Electric or visit its official website for detailed information.