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Finder Relays Comparison: Series 46, 55, 39

February 23, 2026
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Finder Series 46, 55, 39 Comparison


Finder 46 Series Miniature Industrial relays 8-16A

Finder 46 series Pic

The 46 Series Finder mini industrial relays are distinguished by their ability to adapt to a wide range of industrial and commercial applications.

Among the main technical advantages, they ensure wide range of voltages available in both AC and DC versions, high-performance contacts made of high-quality materials (providing excellent conductivity and long operating life), high isolation (Galvanic isolation between coil and contacts for enhanced safety and reliability), compatibility with automation systems (can be integrated with major industrial automation platforms).

Function & Features:
The 46 Series comprises industrial power relays with the following features (according to Type):

  • DC coils, 500 mW or AC coils, 1.2 VA
  • Socket mount or direct connection via Faston connectors
  • Available with lockable test button, mechanical flag & LED indicator
  • 8 mm, 6 kV (1.2/50 μs) isolation, coil-contacts

Applications:

  • Automation for Blinds, Grilles and Shutters
  • Elevators and Lifts
  • Shipyards
  • Road / Tunnel Lighting
  • Hoists and Crane
  • Bottling Plant
  • Control Panels
  • Panels for Electrical Distribution

Finder 55 Series Miniature General Purpose Relays 7-10A

Finder 55 Series Pic

The Finder 55 Series miniature general-purpose relays are versatile 7–10A, 2–4 pole, plug-in or PCB-mount devices designed for industrial automation, HVAC, and power management. They feature AC/DC coils, optional lockable test buttons, mechanical indicators, and LED status, compatible with 94-series sockets.

Function & Features:
Finder’s 55 Series general purpose relay range includes the following features (according to Type):

  • AC & DC coils
  • PCB or Plug-in mounting
  • Available with lockable test button, mechanical flag & LED indicator

Applications:

  • Automation for Blinds, Grilles and Shutters
  • Control Panels
  • Panels for Electrical Distribution
  • Control and Management of Electric Power
  • Circuit Breakers and Switches
  • Shipyards
  • Road / Tunnel Lighting

Finder 39 Series - Relay Interface Modules (EMR or SSR) 0.1…6A

Finder 39 series Pic

The Finder 39 Series MasterINTERFACE modules are ultra-slim (6.2 mm), DIN-rail mountable relay interfaces designed to isolate and switch loads between PLCs/controllers and field devices. Featuring EMR or SSR technology, they offer 1-pole (6A) switching, screw/push-in terminals, and jumper links for efficient wiring. These modules are ideal for space-constrained industrial automation.

Function & Features:
The 39 Series is a range of modular interface relays which include the following features (according to Type):

  • 6.2mm wide
  • DC, AC or AC/DC coil versions
  • Special coil/input leakage current suppression types
  • With fuse protection module
  • Timer version
  • ATEX/HazLoc compliant (EX nC) option available
  • Push-in and screw terminals

Applications:

  • Bottling Plant
  • Packaging Machines
  • Traffic Light Controls
  • Carousel Warehouses
  • Control Panels
  • Panels for Electrical Distribution
  • Labelling machines
  • Hoists and Cranes

Enquiry Form: https://www.epreston.co.uk/contact/

Home Page: https://www.epreston.co.uk/epblog/

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