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38.31.7.024.8240 Finder Modular Relay (SSR) 1NO DC 24V 3A 240VAC

38.31.7.024.8240 Finder Modular Relay (SSR) 1NO DC 24V 3A 240VAC

Finder 38.31.7.024.8240 is a 24 V DC solid-state relay interface module with a 3 A SPST-NO zero-crossing output for switching loads from 12 to 275 V AC.

SKU: 38.31.7.024.8240Alt SKU: 383170248240MPN: 38.31.7.024.8240
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List Price £55.69 ex VAT
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Why Choose the Finder 38.31.7.024.8240 Solid-State Relay Interface Module?

The Finder 38.31.7.024.8240 is a compact and dependable solid-state relay interface module designed for switching AC loads from industrial controllers, PLCs and electronic control systems. As part of the Finder Series 38, it combines a photo-coupled solid-state relay, screw-terminal socket and status indication within a convenient DIN rail assembly.

This interface module provides a single normally open solid-state output rated at 3 A, with a load voltage range of 12–275 V AC. Its zero-crossing switching operation helps reduce electrical disturbance when controlling compatible AC loads, while the absence of mechanical contacts supports silent operation and a long electrical service life.

With a 24 V DC control input, screw terminals and standard 35 mm DIN rail mounting, the Finder 38.31.7.024.8240 is designed for straightforward integration into industrial control panels. Its 14 mm module width provides a compact interface between low-voltage control electronics and AC-powered equipment.

Key Advantages

  • Integrated solid-state relay interface module for industrial control systems.
  • 3 A normally open AC output supports common automation loads.
  • Wide 12–275 V AC load voltage range.
  • 24 V DC control input is suitable for PLC and electronic outputs.
  • Zero-crossing switching helps reduce electrical switching disturbance.
  • Silent electronic operation provides a long electrical service life.

Key Features

  • Finder Series 38 solid-state interface module.
  • Photo-coupled solid-state relay output.
  • SPST-NO / 1 Form A output configuration.
  • 3 A rated load current.
  • 12–275 V AC output voltage range.
  • 24 V DC rated control input.
  • Integrated LED status indication.
  • Screw terminals and 35 mm DIN rail mounting.

Reliable Solid-State Switching for Automation Systems

Solid-state relay interface modules allow low-voltage electronic controllers to switch AC loads without mechanically operated contacts. This provides silent, rapid operation and eliminates contact wear, making solid-state switching particularly suitable for applications with frequent operating cycles.

The Finder Series 38 module combines an optically isolated solid-state relay with a DIN rail socket and screw-terminal connections. Its zero-crossing output switches compatible AC loads close to the voltage zero point, helping reduce electrical stress and electromagnetic disturbance.

Typical Applications

  • PLC and industrial controller output interfaces.
  • Heating and temperature-control equipment.
  • Lighting and building automation systems.
  • Packaging and production machinery.
  • Industrial control panels and distribution equipment.
  • High-frequency AC load switching circuits.

Technical Specifications

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Device Type Interface Relay
Terminal Type Screw
Switching Current (A) 3 A
Load Voltage 12–275 V AC
Mounting Type DIN rail
Manufacturer Finder
Series 38 Series
Model 38.31.7.024.8240
Product type Solid-state relay interface module
Relay technology Photo-coupled solid-state relay
Output configuration SPST-NO / 1 Form A
Rated load current 3 A
Load voltage range 12–275 V AC
Control input voltage 24 V DC
Switching method Zero crossing
Indication LED
Terminal type Screw terminals
Mounting type 35 mm DIN rail
Module width 14 mm
Operating temperature −20 to +55 °C

Frequently Asked Questions

What is the Finder 38.31.7.024.8240 used for?

This module enables a 24 V DC control signal from a PLC or electronic controller to switch compatible AC loads.

What load current can the module switch?

The solid-state output has a rated load current of 3 A.

What output voltage range does the module support?

The Finder 38.31.7.024.8240 is designed to switch loads operating from 12–275 V AC.

Does this interface module use mechanical contacts?

No. It uses a photo-coupled solid-state relay, providing silent switching without mechanically operated contacts.

How is the Finder 38.31.7.024.8240 installed?

The module mounts on a standard 35 mm DIN rail and uses screw terminals for control and load connections.

Trusted for Industrial Control Worldwide

Finder solid-state interface modules are used by automation engineers, panel builders and equipment manufacturers to provide reliable isolation and electronic switching within industrial control systems.