RMIA4512AC – RMI .XX RELAYS

Q: What coil voltage does the RMIA4512AC require?

The relay operates with a 12 V AC coil supply.

Q: How many contacts does this relay have?

The RMIA4512AC features four change-over contacts (4PDT) for flexible circuit switching.

Q: What current rating does the relay support?

The relay supports a 5 A contact current rating for suitable switching applications.

Q: How is the relay installed?

The relay is designed for plug-in socket mounting inside industrial control systems and panels.

Carlo Gavazzi RMIA4512AC industrial electromechanical relay, a 5 A 4PDT plug-in relay with 12 V AC coil designed for industrial automation switching applications.

SKU: RMIA4512ACMPN: RMIA4512AC

List Price £10.42 ex VAT

Your Price (ex VAT)

£10.42

Manufacturer Lead Time Please contact us for a delivery time before you order

Get the best trade prices Trade exclusive

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

Quantity:

SUBTOTAL (EX VAT) £10.42

Trade pricing is personalised to your account

Manufacturer Lead Time

£10.42

Why Choose the Carlo Gavazzi RMIA4512AC Industrial Relay?

The Carlo Gavazzi RMIA4512AC is a reliable industrial electromechanical relay designed for dependable switching and electrical isolation in automation systems, control panels and industrial interface applications. As part of the proven Carlo Gavazzi RMIA industrial relay series, it provides flexible multi-contact switching, LED indication and a compact plug-in design for efficient installation and maintenance.

This plug-in relay features a robust mechanical switching system with four change-over contacts, a 12 V AC coil supply and a 5 A contact rating. Its compact construction, test facility and status indication make it suitable for industrial control circuits where reliable switching performance is required.

With a 12 V AC coil supply, a 5 A contact rating and a 4PDT (four change-over contact) configuration, the RMIA4512AC is ideal for PLC interfaces, machine control systems and industrial automation equipment requiring versatile relay switching.

Key Advantages

Reliable industrial relay designed for automation and control applications.
12 V AC coil voltage for industrial control systems.
5 A switching current suitable for a wide range of control loads.
4PDT contact configuration provides flexible circuit switching.
Integrated LED indication for clear relay status monitoring.
Plug-in socket mounting simplifies installation and replacement.

Key Features

Carlo Gavazzi RMIA industrial relay series.
12 V AC coil supply.
5 A contact current rating.
4PDT / 4 change-over contact configuration.
250 V AC / 30 V DC switching capability.
Integrated LED indication.
Plug-in connection design for simple installation.
Mechanical test function for easier commissioning and maintenance.

Reliable Switching for Industrial Control Systems

Industrial electromechanical relays such as the Carlo Gavazzi RMIA4512AC provide dependable electrical isolation and flexible switching between control circuits and connected loads. Their multi-contact configuration allows several circuits to be controlled from a single relay, making them suitable for complex automation systems.

The RMIA series is designed for automation engineers, electrical panel builders and machine manufacturers requiring compact and serviceable relay solutions. The plug-in design enables efficient installation, replacement and maintenance within industrial control panels.

Typical Applications

Industrial automation control panels.
PLC interface and signal switching systems.
Machine control equipment.
Electrical control cabinets.
Industrial monitoring and switching applications.
OEM automation systems.

Technical Specifications

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

Mounting Type	Plug-in socket
Load Voltage	250 V AC
Switching Current (A)	5 A
Coil / Supply Voltage	12 V AC
Contacts	4 C/O
Manufacturer	Carlo Gavazzi
Series	RMIA Industrial Relays
Model	RMIA4512AC
Product type	Industrial electromechanical relay
Relay type	General purpose / interface relay
Coil voltage	12 V AC
Coil type	Monostable
Contact configuration	4PDT (4 change-over contacts)
Number of normally closed contacts	4
Number of normally open contacts	4
Number of change-over contacts	4
Contact current	5 A
Maximum switching voltage	250 V AC / 30 V DC
Connection type	Plug-in connection
Indication	LED indicator
Contact material	Beryllium copper
Mounting type	Socket mounting

Frequently Asked Questions

What is the Carlo Gavazzi RMIA4512AC used for?

The RMIA4512AC is an industrial electromechanical relay used for switching and isolation in automation and control systems.

What coil voltage does the RMIA4512AC require?

The relay operates with a 12 V AC coil supply.

How many contacts does this relay have?

The RMIA4512AC features four change-over contacts (4PDT) for flexible circuit switching.

What current rating does the relay support?

The relay supports a 5 A contact current rating for suitable switching applications.

How is the relay installed?

The relay is designed for plug-in socket mounting inside industrial control systems and panels.

Trusted by Industrial Automation Engineers

Carlo Gavazzi industrial relays are widely used in automation and control systems to provide reliable switching, isolation and interface control for industrial equipment.

Mounting Type	Plug-in socket
Load Voltage	250 V AC
Switching Current (A)	5 A
Manufacturer	Carlo Gavazzi
Series	RMIA Industrial Relays
Model	RMIA4512AC
Product type	Industrial electromechanical relay
Relay type	General purpose / interface relay
Coil voltage	12 V AC
Coil type	Monostable
Contact configuration	4PDT (4 change-over contacts)
Number of normally closed contacts	4
Number of normally open contacts	4
Number of change-over contacts	4
Contact current	5 A
Maximum switching voltage	250 V AC / 30 V DC
Connection type	Plug-in connection
Indication	LED indicator
Contact material	Beryllium copper
Mounting type	Socket mounting
Coil / Supply Voltage	12 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 Lead time on request

Please contact us for a delivery time before you order

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