Socket for Finder series 88 relays — Finder 90.21 accessory socket for Series 90 relay bases

Accessory socket Finder 90.21 provides the electrical and mechanical interface required to mount and connect plug-in miniature relays from Finder series 88, compatible with series 90 relay bases. It is designed to ensure reliable contact connections and straightforward replacement of relays in control panels, automation systems and industrial switching equipment. The socket supports secure fixation and standardized pin layout to match series 88 relay pins and to integrate with existing series 90 panel or DIN-rail mounting arrangements.

Advantages

The Finder 90.21 socket simplifies relay installation and maintenance by enabling plug-in connection of miniature relays without soldering. It offers a compact footprint and standardized terminal arrangement for consistent wiring and interchangeability of relays. Constructed to provide stable electrical contact and mechanical retention, the socket reduces downtime during relay replacement and supports reliable operation in control circuits and switching applications.

Suitable for

• Mounting Finder series 88 plug-in miniature relays
• Control panels and electrical cabinets
• Automation equipment and PLC interfacing
• Industrial switching and signal circuits
• Maintenance tasks requiring fast relay replacement

Key specifications

• Compatibility: Designed for plug-in miniature relays of Finder series 88 and mounting in series 90 bases
• Mounting form: Panel or DIN-rail compatible relay base interface (series 90)
• Contact layout: Standardized pin pattern matching series 88 relay pins
• Electrical connection: Screw or push-in terminals depending on base arrangement (matches series 90 base wiring)
• Material properties: Insulating housing suitable for industrial control environments
• Function: Provides mechanical retention and electrical contact for plug-in relays to facilitate replacement and wiring

How to use

Install the Finder 90.21 socket into the appropriate series 90 relay base or mounting frame according to the base instructions, then wire the terminals following the circuit diagram and applicable safety standards. After wiring is complete and power is isolated, insert the Finder series 88 relay into the socket until it seats firmly. Verify correct seating and terminal connections before restoring power. For replacement, isolate power, extract the relay by pulling it straight from the socket and insert a new relay in the same orientation.

Usage recommendations

Ensure compatibility by using Finder series 88 relays and series 90 bases, follow local electrical codes for wiring and installation, and perform power isolation before any insertion or removal. Regularly inspect contact surfaces and terminal tightening in industrial environments to maintain reliable operation.