55.34.8.012.2040 Finder Miniature plugin relay 4 pole 7A 12V

55.34.8.012.2040 Finder Miniature plugin relay 4 pole 7A 12V

55.34.8.012.2040 Finder Miniature plugin relay 4 pole 7A 12V.

SKU: 55.34.8.012.2040Alt SKU: 553480122040MPN: 55.34.8.012.2040

Why Choose the Finder 55.34.8.012.2040 General Purpose Relay?

The Finder 55.34.8.012.2040 is a compact and reliable 12 V AC electromagnetic plug-in relay designed for industrial automation, electrical control panels and general-purpose switching applications. As part of the established Finder 55 Series, this relay features four changeover contacts (4PDT) with a rated contact current of 7 A, providing versatile switching capabilities for industrial control circuits.

Designed for dependable operation and straightforward integration, the Finder 55.34.8.012.2040 incorporates silver cadmium oxide (AgCdO) contacts for electrical switching applications. Its four independent changeover contact sets allow multiple circuits to be controlled simultaneously from a single relay coil, making it suitable for control logic, signalling, interlocking and automation equipment.

With a 12 V AC coil operating at 50/60 Hz, a 7 A contact rating and a compact plug-in construction, this relay is well suited to electrical control cabinets and machinery installations. Its socket-mounted design supports convenient installation and replacement using compatible Finder relay sockets.

Key Advantages

  • Reliable general-purpose electromagnetic relay for industrial control applications.
  • 12 V AC operating coil suitable for compatible low-voltage AC control circuits.
  • Four changeover contacts (4PDT) provide flexible multi-circuit switching.
  • 7 A rated contact current for suitable electrical loads.
  • AgCdO contact material designed for dependable electrical switching.
  • Compact plug-in construction simplifies installation and replacement.
  • Four independent changeover contact sets enable multiple control functions from one coil.
  • Compatible with suitable Finder 94 Series relay sockets.
  • Suitable for industrial automation, electrical distribution and machine control systems.

Key Features

  • Finder 55 Series general-purpose industrial relay.
  • 55.34 configuration with four changeover contacts.
  • 12 V AC nominal coil voltage.
  • 50/60 Hz AC coil operation.
  • 7 A rated contact current.
  • 4PDT / 4 CO contact arrangement.
  • Silver cadmium oxide (AgCdO) contact material.
  • 250 V AC rated contact switching voltage.
  • 50 Ω nominal coil resistance.
  • 9.6–13.2 V AC coil operating range.
  • Monostable electromagnetic operation.
  • Plug-in terminal arrangement for compatible relay sockets.
  • Compact industrial housing for electrical control panels.
  • Suitable for switching control signals and appropriately rated electrical loads.

Reliable Multi-Circuit Switching for Industrial Automation

Electromagnetic relays such as the Finder 55.34.8.012.2040 provide electrically operated switching between control circuits and connected equipment. When the 12 V AC coil is energised, the relay actuates its four changeover contact sets, allowing multiple electrical circuits to be switched simultaneously. When the coil is de-energised, the contacts return to their normal positions.

The 4PDT contact arrangement provides flexibility for industrial control applications requiring several switching functions from a single control signal. Its AgCdO contacts and socket-mounted construction make the relay suitable for machine control, interlocking, signalling and electrical automation systems. The Finder 55 Series is designed to support reliable operation while simplifying control panel assembly and maintenance.

Typical Applications

  • Industrial automation and machine control systems.
  • Electrical control panels and switchgear assemblies.
  • Multi-circuit control and switching applications.
  • Control circuit interlocking and signalling.
  • Motor control auxiliary circuits.
  • Industrial alarm and monitoring systems.
  • Building automation and equipment control.
  • Process control and instrumentation interfaces.
  • Electrical distribution and control cabinets.
  • OEM machinery and industrial panel building.

Technical Specifications

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Device Type Plug-in Relay
Mounting Type Plug-in socket
Switching Current (A) 7 A
Manufacturer Finder
Series 55 Series
Model 55.34.8.012.2040
Product type General-purpose electromagnetic relay
Relay configuration 4PDT / 4 CO
Number of poles 4
Number of changeover contacts 4
Rated contact current 7 A
Rated contact voltage 250 V AC
Maximum switching capacity (AC1) 1750 VA
Nominal coil voltage 12 V AC
Coil frequency 50/60 Hz
Coil operating voltage range 9.6–13.2 V AC
Nominal coil resistance 50 Ω
Nominal coil consumption Approximately 1.5 VA
Contact material Silver cadmium oxide (AgCdO)
Operating principle Electromagnetic, monostable
Mounting type Plug-in socket mounting
Compatible socket family Finder 94 Series
Operating temperature −40 to +85 °C
Dimensions (L × W × H) Approximately 27.7 × 20.7 × 37.2 mm
Environmental protection category RT I

Frequently Asked Questions

What is the Finder 55.34.8.012.2040 used for?

The Finder 55.34.8.012.2040 is a general-purpose electromagnetic relay used for switching multiple electrical circuits in industrial automation, control panels, machinery and electrical signalling applications.

What coil voltage does the Finder 55.34.8.012.2040 require?

This relay requires a 12 V AC nominal coil supply operating at 50/60 Hz. Its specified operating voltage range is 9.6–13.2 V AC.

How many contacts does this Finder relay have?

The relay features four changeover contacts (4 CO), also known as a 4PDT configuration. This arrangement allows four separate changeover circuits to be controlled by a single relay coil.

What is the contact current rating of this relay?

The Finder 55.34.8.012.2040 has a 7 A rated contact current. The permissible switching load depends on the circuit voltage, load characteristics and applicable contact ratings.

What contact material is used in the Finder 55.34.8.012.2040?

This model uses silver cadmium oxide (AgCdO) contacts, a contact material used in electromagnetic relays for electrical switching applications.

How is the Finder 55.34.8.012.2040 installed?

The relay features a plug-in terminal arrangement and is designed for installation in compatible Finder 94 Series relay sockets, allowing convenient mounting and replacement in electrical control panels.

Can the Finder 55.34.8.012.2040 be used with a DC coil supply?

No. The Finder 55.34.8.012.2040 is specified with a 12 V AC coil. Applications requiring DC coil operation should use an appropriately rated DC-coil variant from the Finder 55 Series.

Is this relay suitable for industrial automation systems?

Yes. Its four changeover contacts, 7 A contact rating and plug-in design make it suitable for many industrial automation and machine control applications, provided the coil supply and connected loads meet the relay's electrical specifications.

Trusted by Industrial Automation and Control Panel Professionals

Finder 55 Series general-purpose relays are widely used by electrical engineers, industrial automation specialists and control panel builders for dependable electrical switching. The Finder 55.34.8.012.2040 combines four changeover contacts, a compact plug-in design and reliable electromagnetic operation to support versatile industrial control applications.