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55.34.8.240.2040 Finder Miniature plugin relay 4 pole 7A 240V

55.34.8.240.2040 Finder Miniature plugin relay 4 pole 7A 240V

55.34.8.240.2040 Finder Miniature plugin relay 4 pole 7A 240V.

SKU: 55.34.8.240.2040Alt SKU: 553482402040MPN: 55.34.8.240.2040
This product has been discontinued A direct replacement is available below.
55.34.8.240.0040 Finder Miniature plugin relay 4 pole 7A 240V Replacement product 55.34.8.240.0040 Finder Miniature plugin relay 4 pole 7A 240V SKU: 55.34.8.240.0040 £8.82 ex VAT View

Why Choose the Finder 55.34.8.240.2040 General Purpose Relay?

The Finder 55.34.8.240.2040 is a versatile 240 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 flexible control of multiple electrical circuits.

Designed for reliable switching and convenient maintenance, the Finder 55.34.8.240.2040 incorporates a lockable test button and mechanical status indicator. These features assist technicians during commissioning, functional testing and troubleshooting. Its four independent changeover contact sets allow multiple control circuits to be switched simultaneously using a single relay coil.

With a 240 V AC coil operating at 50/60 Hz, a 7 A contact rating and compact plug-in construction, this relay is suitable for machinery control, electrical interlocking, signalling and automation equipment. Its socket-mounted design enables straightforward installation and replacement using compatible Finder 94 Series relay sockets.

Key Advantages

  • Reliable general-purpose electromagnetic relay for industrial control applications.
  • 240 V AC operating coil for compatible AC control systems.
  • Four changeover contacts (4PDT) enable flexible multi-circuit switching.
  • 7 A rated contact current for appropriately rated electrical loads.
  • Integrated lockable test button simplifies manual functional testing.
  • Mechanical status indicator provides visible confirmation of relay operation.
  • Four independent contact sets allow multiple switching functions from one coil.
  • Compact plug-in construction supports straightforward installation and replacement.
  • Compatible with suitable Finder 94 Series relay sockets.
  • Suitable for industrial automation, machinery control, signalling and electrical interlocking.

Key Features

  • Finder 55 Series general-purpose industrial relay.
  • 55.34 configuration with four changeover contacts.
  • 240 V AC nominal coil voltage.
  • 50/60 Hz AC coil operation.
  • 7 A rated contact current.
  • 4PDT / 4 CO contact arrangement.
  • 250 V AC rated contact voltage.
  • 1750 VA rated switching capacity for resistive AC loads.
  • Lockable test button for manual relay operation.
  • Mechanical indicator for visual contact status monitoring.
  • Monostable electromagnetic operation.
  • Plug-in terminal arrangement for compatible relay sockets.
  • Compact industrial housing suitable for electrical control cabinets.

Reliable Multi-Circuit Switching for Industrial Automation

Electromagnetic relays such as the Finder 55.34.8.240.2040 provide electrically operated switching for industrial control circuits and connected equipment. When the 240 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 makes this relay particularly useful in applications requiring several switching operations from a single control signal. Its integrated test button and mechanical indicator support efficient commissioning and troubleshooting, while its plug-in mounting format allows convenient maintenance in industrial automation, electrical interlocking and machine control systems.

Typical Applications

  • Industrial automation and machine control systems.
  • Electrical control panels and switchgear assemblies.
  • Multi-circuit switching and control logic.
  • Electrical interlocking and signalling circuits.
  • 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 55.34.8.240.2040
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
Rated switching capacity (AC1) 1750 VA
Nominal coil voltage 240 V AC
Coil frequency 50/60 Hz
Minimum operate voltage 192 V AC
Nominal coil consumption Approximately 1.5 VA
Operating principle Electromagnetic, monostable
Mounting type Plug-in socket mounting
Compatible socket family Finder 94 Series
Test function Lockable test button
Status indication Mechanical indicator
Operating temperature −40 to +85 °C
Dimensions (L × W × H) Approximately 27.7 × 20.7 × 37.2 mm

Frequently Asked Questions

What is the Finder 55.34.8.240.2040 used for?

The Finder 55.34.8.240.2040 is a general-purpose electromagnetic relay used for switching multiple electrical circuits in industrial automation, machinery control, electrical panels and signalling applications.

What coil voltage does the Finder 55.34.8.240.2040 require?

This relay operates with a 240 V AC nominal coil supply at 50/60 Hz. It is designed for compatible AC control circuits rather than direct DC coil operation.

How many contacts does this Finder relay have?

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

What is the contact current rating of this relay?

The Finder 55.34.8.240.2040 has a 7 A rated contact current. The permissible switching load depends on the circuit voltage, load characteristics and applicable contact ratings.

Does the Finder 55.34.8.240.2040 have a test button?

Yes. The relay incorporates a lockable test button that allows manual operation of the relay mechanism during commissioning, inspection and maintenance. Manual testing should only be performed under appropriate electrical safety conditions.

Does this relay include a mechanical indicator?

Yes. The Finder 55.34.8.240.2040 includes a mechanical status indicator that provides visual confirmation of relay operation.

How is the Finder 55.34.8.240.2040 installed?

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

Can the Finder 55.34.8.240.2040 operate from a 240 V DC supply?

No. The Finder 55.34.8.240.2040 is specified with a 240 V AC coil. Applications requiring DC coil operation should use a suitable DC-coil relay with the appropriate voltage rating.

Is this relay suitable for industrial automation systems?

Yes. Its four changeover contacts, 7 A contact rating, lockable test button and plug-in construction make it suitable for many industrial automation and machine control applications, provided the coil supply and connected loads comply with 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 55.34.8.240.2040 combines four changeover contacts, a lockable test button, a mechanical indicator and a compact plug-in design to support versatile industrial control and automation applications.