Zamel SPM-05-20 Auxiliary Contact for EXTA STM Contactors, 5A, 2NO

The Zamel SPM-05-20 is a high-quality auxiliary contact module specifically engineered for seamless integration with the EXTA STM series of contactors. This component serves as a critical extension for electrical control systems, providing additional switching capacity and status monitoring. With a robust design and a 5A current rating, it ensures reliable performance in both residential and industrial automation environments, allowing for more complex control logic and signaling configurations.

Advantages

The primary advantage of the Zamel SPM-05-20 lies in its perfect compatibility with the EXTA STM contactor line, ensuring a quick and secure installation process. By providing two normally open (2NO) contacts, it significantly enhances the flexibility of your electrical installation, enabling the monitoring of contactor status or the control of secondary circuits. Its compact design saves valuable space in distribution boards while maintaining high operational reliability and durability under standard electrical loads.

Suitable for

• Expanding control circuits in automation systems
• Status signaling for contactors in residential switchboards
• Industrial control panel monitoring
• Integration with building management systems

This auxiliary contact is not suitable for applications requiring high-power switching beyond its 5A rating or for use with contactors outside the EXTA STM series. It is also not intended for environments with extreme moisture or corrosive atmospheres unless housed in an appropriate protective enclosure.

Key specifications

• Contact configuration: 2NO (normally open)
• Rated current: 5A
• Compatibility: EXTA STM series contactors
• Mounting: Modular design for standard rail installation

Installation should be performed by a qualified electrician in accordance with local safety regulations. The module is designed to be snapped onto the side of the main contactor unit. Ensure that the power supply is disconnected before attempting to mount or wire the device. Once attached, the auxiliary contacts will mechanically follow the state of the main contactor, providing reliable feedback or control signals.

What to consider before purchase

• Verify that your existing contactor is part of the EXTA STM series
• Ensure the 5A current rating is sufficient for your control circuit requirements
• Check available space in your distribution board for the additional module width

For optimal performance and longevity, ensure that all electrical connections are tightened to the manufacturer's specified torque and that the device is protected from dust and excessive vibration within the electrical cabinet.