Zamel STM-25-40 Modular Installation Contactor 25A 4NO 230V AC

The Zamel STM-25-40 is a high-quality modular installation contactor engineered for the reliable switching of electrical circuits in both residential and commercial environments. Designed for seamless integration into standard electrical distribution boards, this device provides a robust solution for managing power distribution with a rated current of 25A. Featuring four normally open (4NO) contacts and operating on a 230V AC control voltage, it ensures consistent performance for various automated electrical systems.

Advantages

This modular contactor stands out due to its compact design, which allows for efficient space utilization on standard DIN-rail mounting systems. The construction emphasizes durability and operational safety, making it a dependable choice for long-term electrical installations. Its silent operation and high switching capacity contribute to a stable electrical infrastructure, reducing the need for frequent maintenance while providing precise control over connected loads.

Suitable for

• Controlling lighting systems in buildings
• Managing heating and ventilation equipment
• Switching electrical circuits in residential homes
• Commercial electrical distribution panels

This device may not be suitable for applications requiring high-frequency switching or environments with extreme industrial vibrations. It is also not intended for use in circuits exceeding its 25A rated current capacity or in non-standard voltage environments outside of the specified 230V AC range.

Key specifications

• Rated current: 25A
• Contact configuration: 4 normally open (4NO)
• Control voltage: 230V AC
• Mounting type: DIN-rail
• Application: Modular installation

The installation of the Zamel STM-25-40 should be performed by a qualified electrician in accordance with local safety regulations. The device is designed to be snapped onto a standard DIN-rail within an electrical enclosure. Ensure that the control circuit is correctly wired to the coil terminals and that the load circuits are connected to the corresponding power terminals, verifying all connections are secure before energizing the system.

What to consider before purchase

• Verify that the 25A rated current is sufficient for your specific load requirements
• Ensure the 230V AC control voltage matches your existing control system
• Confirm available space on your DIN-rail for modular mounting
• Check that the 4NO contact configuration meets your circuit switching needs

For optimal performance and longevity, ensure the contactor is installed in a well-ventilated enclosure to prevent overheating. Regularly inspect the terminal connections for tightness during routine maintenance to maintain electrical integrity.