55.34.8.120.0040 Finder Miniature plugin relay 4 pole 7A 120V

Q: What coil voltage does this relay require?

The relay operates with a 120 V AC coil supply.

Q: How many contacts does the Finder 55.34.8.120.0040 have?

The relay features four changeover contacts (4PDT) for flexible switching control.

Q: What is the maximum contact rating?

The relay has a contact rating of 7 A at 250 V AC.

Q: How is the relay installed?

The Finder 55.34.8.120.0040 uses a socketable plug-in mounting design for straightforward installation and replacement.

Finder 55.34.8.120.0040 general purpose relay with 120 V AC coil, 4PDT contacts and 7 A switching capability for industrial control and automation applications.

SKU: 55.34.8.120.0040Alt SKU: 553481200040MPN: 55.34.8.120.0040

List Price £12.91 ex VAT

Your Price (ex VAT)

£12.91

Manufacturer Lead Time Standard Manufacturer Lead Time 6-8 Weeks, Call For Express Delivery Options

Get the best trade prices Trade exclusive

Create a trade account to unlock exclusive pricing, special offers and more.

Quantity:

SUBTOTAL (EX VAT) £12.91

Trade pricing is personalised to your account

Manufacturer Lead Time

£12.91

Why Choose the Finder 55.34.8.120.0040 General Purpose Relay?

The Finder 55.34.8.120.0040 is a compact and reliable electromechanical plug-in relay designed for industrial control, automation and electrical switching applications. Part of the proven Finder 55 Series miniature general purpose relay range, it provides dependable switching performance with a 120 V AC coil and four changeover contacts.

This relay combines a space-saving design with robust electrical performance, making it suitable for control panels, industrial machinery and automation systems. The plug-in construction enables straightforward installation and replacement, while the transparent housing allows easy visual inspection of the relay mechanism.

With a 7 A contact rating, 4PDT contact configuration and 120 V AC coil supply, the Finder 55.34.8.120.0040 is ideal for applications requiring reliable switching, electrical isolation and multiple changeover contacts.

Key Advantages

Compact Finder 55 Series plug-in relay for industrial applications.
120 V AC coil voltage suitable for control circuits.
4PDT (4 changeover) contact configuration for flexible switching.
7 A contact rating for dependable load control.
Socketable design enables quick installation and replacement.
Transparent relay body supports easy inspection and maintenance.

Key Features

Finder 55 Series miniature general purpose relay.
120 V AC coil.
4PDT (4 Form C) contacts.
7 A contact current rating.
Silver Nickel (AgNi) contact material.
Plug-in socket mounting design.
Suitable for industrial automation and electrical control systems.
Reliable electromechanical switching operation.

Reliable Switching for Industrial Control Systems

Electromechanical relays provide electrical isolation between control circuits and switched loads, allowing reliable operation of industrial equipment, automation systems and electrical installations. The Finder 55.34.8.120.0040 delivers dependable switching performance where compact dimensions and multiple changeover contacts are required.

The Finder 55 Series is designed for professional panel builders and automation engineers requiring reliable relays with simple installation, long service life and flexible switching capabilities.

Typical Applications

Industrial automation control panels.
Machine control and electrical cabinets.
PLC interface and signal switching systems.
Building automation equipment.
Motor and actuator control circuits.
General electrical switching applications.

Technical Specifications

Tick the specs you need, then view products that match.

Device Type	Plug-in Relay
Mounting Type	Plug-in socket
Switching Current (A)	7 A
Load Voltage	400 V AC
Coil / Supply Voltage	120 V AC
Contacts	4 C/O
HS Code	85364900
Manufacturer	Finder
Series	55
Model	55.34.8.120.0040
Product type	Electromechanical general purpose relay
Coil voltage	120 V AC
Contact configuration	4PDT (4 changeover contacts)
Contact rating	7 A at 250 V AC
Maximum switching voltage	400 V AC
Contact material	Silver Nickel (AgNi)
Mounting type	Socketable plug-in mounting
Operating temperature	-40 °C to +85 °C
Dimensions (H × W × D)	approx. 37.2 × 20.7 × 27.7 mm

Frequently Asked Questions

What is the Finder 55.34.8.120.0040 used for?

The Finder 55.34.8.120.0040 is a general purpose electromechanical relay used for industrial automation, control panels and electrical switching applications.

What coil voltage does this relay require?

The relay operates with a 120 V AC coil supply.

How many contacts does the Finder 55.34.8.120.0040 have?

The relay features four changeover contacts (4PDT) for flexible switching control.

What is the maximum contact rating?

The relay has a contact rating of 7 A at 250 V AC.

How is the relay installed?

The Finder 55.34.8.120.0040 uses a socketable plug-in mounting design for straightforward installation and replacement.

Trusted by Industrial Automation Professionals

Finder 55 Series relays provide reliable switching, flexible installation and long service life for industrial control and automation applications.

Device Type	Plug-in Relay
Mounting Type	Plug-in socket
Switching Current (A)	7 A
Load Voltage	400 V AC
HS Code	85364900
Manufacturer	Finder
Series	55
Model	55.34.8.120.0040
Product type	Electromechanical general purpose relay
Coil voltage	120 V AC
Contact configuration	4PDT (4 changeover contacts)
Contact rating	7 A at 250 V AC
Maximum switching voltage	400 V AC
Contact material	Silver Nickel (AgNi)
Mounting type	Socketable plug-in mounting
Operating temperature	-40 °C to +85 °C
Dimensions (H × W × D)	approx. 37.2 × 20.7 × 27.7 mm
Coil / Supply Voltage	120 V AC
Contacts	4 C/O

UK delivery

Delivery options

Free UK delivery on orders over £200 ex VAT. Order in-stock items before 2pm Monday to Friday for next-day delivery.

This product Manufacturer Lead Time

Standard Manufacturer Lead Time 6-8 Weeks, Call For Express Delivery Options

Standard delivery

£8 ex VAT · free over £200

UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.

Heavier items may be charged at a weight-based or pallet rate, shown at checkout.

Collect from our showroom

Mon–Fri, 8am–5pm

Order and pay online, then collect from our showroom.

Please allow 15–30 minutes after ordering for us to prepare your order.

Northern Ireland, ROI & export

Priced at checkout

We deliver to Northern Ireland, the Republic of Ireland and overseas.

Delivery is calculated at checkout based on your destination.

Orders with mixed availability

Shipped complete

If part of your order is on a lead time, we hold it and send everything together.

Need the in-stock items sooner? Ask us and we can split the delivery.

Business customer returns

Returns & order support

Need to return an item? Find the guidance for your order below, then contact our team before sending anything back.

Stocked items

Request within 30 days

Changed your mind or ordered the wrong item? Request a return within 30 days of receipt. There is no restocking charge.

Items must be unused, in resalable condition and in their original packaging, and returns need our approval first. Return carriage is at your cost, and the original delivery charge is not refunded.

Faulty or damaged items

Tell us as soon as possible

Faulty, damaged on delivery or the wrong product supplied? Contact our team as soon as possible with the details.

We will review the issue and arrange an appropriate resolution under our terms and conditions and your statutory rights.

Made-to-order items

Manufacturer approval needed

Manufactured, configured and special-order products can only be returned with the manufacturer’s approval. Any handling charge is agreed with you when you request the return.

This does not affect claims for faulty goods or items that do not meet the agreed specification.

LED Controls showroom with electrical products on display

Let’s get your return sorted.

Send your order number, product details and reason for return. For faults or delivery damage, include photographs if available. We will confirm the next steps.

Email returns team 01706 242050

The 30-day return request period applies to change-of-mind returns for stocked items. It does not limit your statutory rights for faulty or non-conforming goods.

● Service Agreements

Credit Accounts

Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.

Priority sourcing and supply support

Flexible payment terms for qualifying organisations

Support for engineering, maintenance, and operations

500 +

Stock lines ready to ship

1,000 +

Same day dispatches

3500 +

Customers supported

28 Trusted Manfacturers

● frequently asked questions

Common questions about our products and support

At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.

What product ranges do you supply

We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.

Can you help specify the correct part?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

Do you have stock for urgent orders?

What are your delivery times and costs?

What about warranties, returns and faulty items?

● latest blog

Discover our latest insights and
expert advice

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

by admin | Aug 11, 2026 | News

LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.

LED Controls: Danfoss Drives Authorised Partner

by admin | Jan 17, 2026 | Product Spotlight

2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...

LED Controls: Your Complete Control Panel Solution