Thermal relay GTH-40/3 32–48A

Thermal relay GTH-40/3 for electric motor protection

Product Description

Thermal relay GTH-40/3 is designed for safe and effective protection of electric motors against overload, rotor lock and phase loss. This thermal relay is used in industrial systems, electrical panels, HVAC installations, pumps and automated equipment where reliable protection of electrical circuits is required.

The model thermal relay GTH-40/3 offers precise current regulation and direct compatibility with the GMC-40 contactor, allowing for quick integration and simple installation into existing systems. The robust construction and manual or automatic reset function contribute to safe operation and long service life.

Due to the bimetallic construction and ambient temperature compensation, thermal relay GTH-40/3 provides stable protection even in difficult industrial conditions.

Advantages of the GTH-40/3 thermal relay

• Motor overload protection
• Phase loss protection
• Compatible with GMC-40 contactor
• Precise current adjustment
• Manual or automatic reset
• Compact and reliable construction
• Quick installation and easy maintenance
• Suitable for industrial and HVAC applications

Main features

• Compatible with GMC-40 contactors
• Operating voltage AC380V
• Auxiliary contacts 1NO + 1NC
• Reliable thermal protection for electric motors
• Available in multiple current regulation ranges
• Manual reset function for safe restart after tripping

Technical specifications

Model: GTH-40/3
Product type: Thermal overload relay
Compatibility: GMC-40 Contactor
Rated voltage: AC380V
Reset type: Manual / automatic
Auxiliary contact type: 1NO + 1NC
Construction type: Bimetallic

Current adjustment ranges

• 18–26A
• 24–36A
• 28–40A
• 32–48A

Areas of use

Thermal relay GTH-40/3 is used for:

• protection of electric motors;
• HVAC installations;
• pumps and compressors;
• ventilation systems;
• industrial automation;
• electrical panels;
• commercial and industrial equipment.

Frequently asked questions about Thermal relay GTH-40/3

1. What is the GTH-40/3 thermal relay used for?
The GTH-40/3 thermal relay is used to protect electric motors against overload, rotor lock and phase loss, preventing equipment failure and unplanned shutdowns.

2. What contactors is this thermal relay compatible with?
The GTH-40/3 model is designed for use with the GMC-40 contactor, ensuring quick integration and reliable operation in electrical systems.

3. What current adjustment ranges are available?
The relay is available in several adjustment options: 18–26A, 24–36A, 28–40A and 32–48A, allowing adaptation to different powers of electric motors.

4. What type of reset does the GTH-40/3 thermal relay offer?
The GTH-40/3 thermal relay features manual and automatic reset, providing flexibility depending on the application requirements and the desired level of safety.

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