Motor overload relay, 1NO+1NC ZE-9 014708

Motor protection in a compact housing

This overload relay, designed for direct mounting in DILE(E)M series contactors, provides reliable protection for electric motors against overload and phase failure. Compliance with IEC/EN 60947 and VDE0660 T.102 standards guarantees the safety and proper operation of the installation. The device is particularly recommended for use in EEx motors, where high reliability and resistance to external conditions are required.

The relay is characterized by a tripping class of 10A and a current setting range from 6 to 9 amps, allowing for precise adjustment to the load characteristics. Protection degree IP20 ensures protection against finger contact according to EN50274 with vertical operation from the front. This solution is ideal for both new installations and modernization of existing systems.

Functionality and ease of use

The relay has one normally open and one normally closed auxiliary contact, enabling integration with control and signaling systems. Automatic short-circuit tripping and the presence of a reset button facilitate quick restoration of system operation after a failure. The lack of a need to connect a reset signal simplifies device configuration. Screw connections ensure secure and durable electrical connections.

Thanks to its compact size, the relay is ideal for mounting in confined spaces, such as small distribution boxes or modular enclosures. This is particularly important in industrial applications where space optimization is crucial. The device has approval for use on ships, confirming its high quality and reliability in harsh operating conditions.

Key features for installers and users

• Direct mounting: Quick and easy mounting directly into the DILE(E)M contactor eliminates the need for additional mounting elements.
• Phase failure protection: Provides additional installation safety by detecting the absence of one of the phases supplying the motor.
• Current setting range: Smooth adjustment of the 6-9A range allows for precise tuning of the protection to the motor load.
• Automatic reset: Enables automatic restoration of system operation after the cause of the short circuit has subsided – saves time and minimizes downtime.
• Status indication: The presence of normally open and normally closed auxiliary contacts enables remote monitoring of the relay's operating status and integration with control systems.
• Compliance with standards: Meeting the requirements of IEC/EN 60947 and VDE0660 T.102 standards guarantees the safety and reliability of the device.