Apply Discount Code
3E1221
3E1221 Relay Module 12Volt Dc
Main image
Click to view image in fullscreen
![]()
3E1221 Relay Module 12Volt Dc
In stock
Delivery Information
| Delivery Time Frame | Delivery Information |
| Next Working Day By 1PM | When an order is placed by 3pm for next working day on certain items |
| Standard Delivery | Usually delivered in 2 to 4 working days |
| Delivery Charges | |
| UK Mainland | Prices start at £3.95 for very small items, £6.50 for small, £9.50 for medium and £20 for large/long items |
| Scottish Highlands & Islands, Northern Ireland & Ireland | Prices from £30, please see our delivery page for more info. |
View Delivery Information
£15.55
Incl. VAT
£12.96
Excl. VAT
Incl. VAT
Excl. VAT
Incl. VAT
Excl. VAT
Price is for/per each
-
+
See our full range:
Description
DOORFIT ENGINEERING SUITE
When you are managing complex electrical circuits in architectural hardware or industrial setups, the need for a dependable switching solution is paramount. The 3E1221 Relay Module 12Volt DC provides a robust answer to common operational challenges, such as signal isolation and power distribution across low voltage environments. It is designed to bridge the gap between delicate control signals and the heavier power requirements of locking mechanisms, ensuring that your hardware performs exactly as intended without unnecessary electrical strain.
Reliability often hinges on the quality of components that sit behind the scenes. This relay module offers a straightforward way to manage power feeds while maintaining consistent system health. By integrating this module into your existing control panels, you reduce the risk of erratic signal interference and ensure that every action, from simple access commands to more complex security routines, is handled with absolute precision. It serves as an essential link in the chain for engineers and installers who prioritise long term system durability.
PRECISION FIT
The physical footprint of the 3E1221 Relay Module 12Volt DC is optimised for tight control cabinets where space is at a premium. Its compact housing ensures you can fit it alongside other critical hardware without creating a cluttered environment.
RAPID ASSEMBLY
Installation has been simplified to allow for quick integration into ongoing projects. Clear connection points minimise the time spent on manual wiring tasks and help technicians achieve a professional, tidy finish in every single installation.
UK CERTIFIED
Safety and compliance sit at the heart of our engineering suite. This relay module is manufactured to meet the high standards expected within the British hardware industry, providing peace of mind for both the installer and the end user.
MANUFACTURING INTEGRITY
Quality control remains our top priority throughout the manufacturing lifecycle. Each relay unit undergoes rigorous testing to ensure that it meets the precise specifications required for reliable switching performance. We understand that in an active electrical system, even the smallest component carries significant weight. That is why this module is built using durable components designed to withstand the heat and vibration often present in modern industrial environments.
Beyond the raw materials, the design philosophy focuses on longevity and minimal maintenance requirements. By selecting high grade connectors and a sturdy outer casing, the manufacturing team ensures that the device maintains signal integrity over many years of service. It represents a smart investment for those who value long term performance over quick but temporary fixes.
12V DC Standard Operating Voltage
Designed for stable performance across common UK voltage standards.
READY Plug And Play Logic
Engineered for immediate deployment with existing control systems.
PROVEN APPLICATION BENCHMARKS
When considering the 3E1221 Relay Module 12Volt DC for your project, it helps to look at the practical applications. This unit is widely used in access control systems, magnetic locks, and automated door sequences where precise switching is non negotiable. Its ability to handle standard 12 volt loads makes it an incredibly versatile tool in any engineer toolkit, whether you are retrofitting an old building or setting up a brand new security hub.
We have seen this module perform consistently under various loads and environmental conditions. Because it adheres to robust industry benchmarks, you can be confident that it will not let your system down during peak traffic hours. It provides the necessary separation between your sensitive low voltage control signals and the higher power demands of the hardware, which ultimately extends the life of your entire door management solution.
Detailed Specifications
| Parameter | Specification | Notes |
|---|---|---|
| Operating Voltage | 12V DC | Stable output for standard hardware |
| Module Type | Relay Switching | Electromechanical reliability |
| Material Construction | Reinforced Polymer | Designed for durability and fire safety |
| Safety Standard | UKCA / CE Compliant | Meets current UK building safety directives |
Ready to Order or Enquire?
Doorfit · Fast Nationwide Dispatch · Full Trade Warranty