Finder 55.34.8.024.0040 Miniature Plug-in Relay, 24V AC, 7A, 4 Changeover Contacts

The Finder 55.34.8.024.0040 is a high-performance miniature plug-in relay engineered for reliable operation in industrial automation and control systems. This component features a 24V AC coil and provides four changeover contacts, making it a versatile choice for complex switching tasks. Designed for durability and ease of use, it incorporates a lockable test button and a mechanical indicator to facilitate quick status checks and manual testing during maintenance procedures.

Advantages

This miniature relay offers exceptional reliability due to its robust construction and high-quality contact materials. The inclusion of a lockable test button allows technicians to verify circuit functionality without needing to energize the coil, significantly simplifying troubleshooting and system commissioning. Furthermore, the mechanical indicator provides clear visual feedback regarding the relay's switching state, ensuring that operators can quickly identify active circuits. Its compact design allows for efficient space utilization within dense control panels, while the AgNi contact material ensures stable performance across a wide range of electrical loads.

Suitable for

• Industrial automation control panels
• Electrical signal switching systems
• HVAC control equipment
• Machine tool control circuits
• Power distribution management

When it may not be suitable

This relay is not intended for switching high-power inductive loads that exceed its maximum rated current or voltage specifications. It is also not suitable for environments where extreme vibration or corrosive atmospheres might compromise the integrity of the plug-in connections without appropriate protective housing.

Key specifications

• Coil voltage: 24V AC
• Contact configuration: 4 changeover (CO) contacts
• Rated current: 7A
• Maximum switching voltage: 250V AC
• Maximum switching power: 1750 VA
• Contact material: AgNi
• Operating temperature range: -40°C to +85°C
• Dimensions: 27.7 mm x 20.7 mm x 37.2 mm

How to use

The relay is designed for easy installation into compatible sockets using 2 mm flat plug connections. Once inserted into a secure base, ensure that the coil terminals are connected to the 24V AC power source. The mechanical test button can be operated by turning it to the desired position to manually actuate the contacts for testing purposes. Always ensure the system is de-energized before performing any installation or maintenance work to prevent electrical hazards.

What to consider before purchase

• Verify that the control voltage matches the 24V AC coil requirement.
• Ensure the socket used is compatible with the 2 mm flat plug pin layout.
• Check that the total load current does not exceed the 7A limit.
• Confirm the environmental conditions are within the specified temperature range.

Usage recommendations

For optimal longevity, ensure the relay is installed in a clean, dry environment and protected from excessive moisture or dust. Regularly inspect the mechanical indicator and test button during scheduled maintenance to ensure smooth operation.