48.31.8.012.0060SPA Finder 1 CO Contacts 12V AC Modular Interface Relay with Green LED + varistor Indication

Why Choose the Finder 48.31.8.012.0060SPA Modular Interface Relay?

The Finder 48.31.8.012.0060SPA is a compact DIN-rail modular interface relay designed to provide reliable electrical isolation between PLC control circuits and field devices in industrial automation systems. It features a single changeover contact (1 CO / SPDT) and a 12 V AC coil, enabling dependable switching of loads from controllers, sensors and automation equipment.

Part of the Finder Series 48 relay interface modules, this relay includes an integrated green LED status indicator and a varistor suppression circuit. The LED provides clear visual confirmation when the coil is energised, while the varistor protects control electronics from voltage spikes generated during switching operations. These modules are designed for installation on a 35 mm DIN rail, making them ideal for control cabinets and industrial automation panels. :contentReference[oaicite:0]{index=0}

With a compact width of approximately 15.8 mm, screw terminal connections and reliable silver-nickel contacts, the 48.31 interface relay offers dependable signal isolation and switching performance for PLC interface circuits, machine control systems and building automation installations. :contentReference[oaicite:1]{index=1}

Key Features

• 1 changeover contact (SPDT / 1 CO) for flexible switching applications.
• 12 V AC coil voltage suitable for industrial control systems.
• Integrated green LED indicator showing relay coil status.
• Built-in varistor suppression protecting control electronics from switching spikes.
• 10 A contact rating suitable for industrial loads.
• DIN rail interface module for control cabinets and automation panels.
• Compact 15.8 mm module width enabling high-density installations.
• Silver-nickel (AgNi) contacts for long electrical life and reliable switching.

Technical Specifications

• Manufacturer: Finder
• Series: 48 Series relay interface modules
• Model: 48.31.8.012.0060SPA
• Product type: Modular interface relay
• Contact configuration: 1 CO (SPDT)
• Rated contact current: 10 A
• Maximum switching voltage: 400 V AC
• Rated switching voltage: 250 V AC
• Maximum load: approx. 4000 VA
• Coil voltage: 12 V AC
• Coil current: approx. 46 mA
• Indicator: Green LED
• Coil suppression: Varistor
• Contact material: Silver Nickel (AgNi)
• Operate / release time: approx. 7 ms / 4 ms
• Mounting: DIN rail (EN 60715)
• Terminal type: Screw terminals
• Operating temperature: −40 °C to +70 °C
• Module width: approx. 15.8 mm

Typical Applications

• PLC output interface modules.
• Industrial automation control cabinets.
• Machine control and signal isolation.
• Building automation and HVAC systems.
• Industrial process control equipment.

Trusted by Automation Engineers

Finder interface relays are widely trusted by automation engineers and panel builders for dependable signal isolation and control switching in industrial automation cabinets.