48.31.8.230.0060SMA Finder 1 CO Contacts 230V AC Modular Interface Relay with Green LED + varistor Indication

Why Choose the Finder 48.31.8.230.0060SMA Modular Interface Relay?

The Finder 48.31.8.230.0060SMA 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 (SPDT / 1 CO) with a 230 V AC control coil, enabling dependable switching of loads from automation controllers, sensors and machine control equipment.

This relay includes an integrated green LED status indicator together with varistor suppression on the coil circuit. The LED provides immediate visual confirmation when the relay is energised, while the varistor protects control electronics from voltage spikes generated during switching operations. As part of the Finder Series 48 relay interface module range, it is widely used in industrial control cabinets and automation panels.

Designed for installation on a 35 mm DIN rail, the relay provides dependable switching performance with durable AgNi (silver-nickel) contacts and a compact width suitable for high-density control panel layouts.

Key Features

• 1 changeover contact (SPDT / 1 CO) for versatile switching applications.
• 230 V AC coil voltage suitable for industrial control circuits.
• Integrated green LED indicator showing relay coil energised status.
• Varistor suppression protecting control electronics from switching transients.
• Rated contact current up to 10 A for industrial load control.
• DIN rail mounting (EN 60715) for quick installation.
• Compact 15.8 mm module width for dense control panel layouts.
• AgNi contact material ensuring long electrical service life.

Technical Specifications

• Manufacturer: Finder
• Series: 48 Series relay interface modules
• Model: 48.31.8.230.0060SMA
• Product type: Modular interface relay
• Contact configuration: 1 CO (SPDT)
• Rated contact current: 10 A
• Rated switching voltage: 250 V AC
• Maximum switching voltage: 400 V AC
• Maximum switching load: approx. 4000 VA
• Coil voltage: 230 V AC
• 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
• Protection rating: IP20

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 used by automation engineers and panel builders for dependable signal isolation and switching in industrial control cabinets and automation systems.