Standard delivery
£8 ex VAT · free over £200UK 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.
40.51.8.120.0300 Finder Miniature PCB relay 1pole 10A 120V
Finder 40.51.8.120.0300 miniature PCB relay with a 120 V AC coil and one changeover contact designed for industrial control and automation switching applications.
Why Choose the Finder 40.51.8.120.0300 Relay?
The Finder 40.51.8.120.0300 is a compact and reliable electromechanical PCB relay designed for dependable switching and control applications in industrial automation, electrical equipment and interface systems. As part of the proven Finder 40 Series miniature relay range, it delivers reliable performance, efficient switching and easy integration into electronic control applications.
This relay provides electrical isolation between control circuits and connected loads, making it suitable for automation equipment, control panels and electronic systems where reliable switching and long service life are required. Its compact PCB mounting format allows straightforward integration into space-constrained designs.
With a 120 V AC coil supply and a 1 changeover contact (SPDT / 1CO) configuration, the Finder 40.51.8.120.0300 offers dependable switching for a wide range of industrial and commercial electrical applications.
Key Advantages
- Compact miniature PCB relay designed for control applications.
- 120 V AC coil voltage suitable for electrical control systems.
- Single changeover contact (SPDT) provides flexible switching operation.
- Reliable electrical isolation between control and load circuits.
- Space-saving design for electronic and automation equipment.
- Suitable for industrial, commercial and building control applications.
Key Features
- Finder 40 Series miniature relay.
- 1 changeover contact (SPDT / 1CO).
- 120 V AC coil voltage.
- PCB mounting design.
- Electromechanical relay technology for reliable switching.
- Compact construction for integration into control equipment.
- Designed for automation and electrical interface applications.
Reliable Switching for Industrial Control Systems
Electromechanical relays such as the Finder 40.51.8.120.0300 provide a dependable method of switching electrical loads using low-power control signals. They are commonly used to provide isolation, signal conversion and reliable load control within automation and electrical systems.
The Finder 40 Series is designed for engineers requiring compact, robust and easy-to-install relays for industrial control, electronic equipment and building automation applications.
Typical Applications
- Industrial automation control systems.
- Electrical control panels and relay interface modules.
- PLC output switching applications.
- Machine control equipment.
- Building automation systems.
- Electronic equipment and electrical control circuits.
Technical Specifications
Tick the specs you need, then view products that match.
| Device Type | Plug-in Relay | |
|---|---|---|
| Switching Current (A) | 10 A | |
| Mounting Type | PCB | |
| Coil / Supply Voltage | 120 V AC | |
| Contacts | 1 C/O | |
| Manufacturer | Finder | |
| Series | 40 Series | |
| Model | 40.51.8.120.0300 | |
| Product type | Electromechanical PCB relay | |
| Contact configuration | 1 changeover contact (SPDT / 1CO) | |
| Coil voltage | 120 V AC | |
| Mounting type | PCB mounting | |
| Contact rating | Up to 10 A | |
| Contact material | AgNi | |
| Frequency | 50 / 60 Hz | |
| Protection category | IP20 (when installed in suitable enclosure) |
Frequently Asked Questions
What is the Finder 40.51.8.120.0300 used for?
The relay is used for switching electrical loads and providing isolation in industrial automation, control panels and electronic systems.
What coil voltage does this relay require?
The Finder 40.51.8.120.0300 uses a 120 V AC coil supply.
How many contacts does the relay have?
The relay features one changeover contact (SPDT / 1CO) for flexible switching applications.
What type of mounting is used?
The relay is designed for PCB mounting within electrical and electronic equipment.
Where is this relay typically installed?
The relay is typically installed in automation equipment, control panels, interface modules and electrical control systems.
Trusted by Electrical Engineers Worldwide
Finder 40 Series relays are widely used by automation professionals and electrical engineers to provide reliable switching, isolation and control within modern industrial and commercial systems.
