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Finder 22.22.8.120.4000 – 22 Series Modular monostable relays
Finder 22.22.8.120.4000 modular monostable installation relay with a 120 V AC operating coil, two normally open 20 A contacts and DIN rail mounting for compatible electrical load switching and building automation applications.
£22.33
Why Choose the Finder 22.22.8.120.4000 Modular Installation Relay?
The Finder 22.22.8.120.4000 is a robust 20 A modular installation relay designed for reliable electrical load switching in distribution boards, lighting control systems and building automation installations. Part of the Finder 22 Series, this electromagnetic relay features a 120 V AC operating coil and two normally open contacts for convenient remote switching of compatible electrical circuits.
Featuring a 2 NO (DPST-NO) contact configuration, the Finder 22.22.8.120.4000 enables two electrical circuits to be switched simultaneously using a single control signal. Its monostable operating mechanism ensures that both contacts return to their normally open positions when the coil supply is removed, providing predictable switching behaviour for electrical control applications.
Designed for direct installation onto a standard 35 mm DIN rail, this modular relay integrates into compatible electrical distribution boards and control cabinets. Its 20 A rated contacts and silver tin oxide (AgSnO2) contact material make it suitable for appropriately rated lighting, building services and general electrical switching applications.
Key Advantages
- 20 A rated contacts for switching compatible electrical loads.
- 120 V AC operating coil suitable for compatible control circuits.
- Two normally open contacts allow simultaneous switching of two electrical circuits.
- Monostable operation returns both contacts to their normal positions when the coil is de-energised.
- AgSnO2 contact material provides dependable switching performance.
- Modular housing designed for convenient installation inside electrical distribution boards.
- 35 mm DIN rail mounting simplifies integration into control panels.
- Suitable for lighting control, building automation and electrical distribution applications.
- Allows electrical loads to be controlled remotely through a separate operating circuit.
- Part of Finder's established 22 Series installation relay range.
Key Features
- Finder 22 Series modular installation relay.
- Type 22.22 two-pole monostable relay.
- 2 NO (DPST-NO) contact arrangement.
- 120 V AC rated operating coil.
- 20 A rated contact current.
- Electromagnetic monostable switching mechanism.
- Two normally open contacts operated by a common coil.
- Silver tin oxide (AgSnO2) contact material.
- Designed for switching compatible electrical loads.
- Modular construction for electrical distribution and automation panels.
- Direct mounting onto standard 35 mm DIN rail.
- Suitable for professional electrical installation and control applications.
Reliable Two-Pole Switching for Electrical Control and Building Automation
Modular installation relays provide a practical method of controlling electrical loads using a separate operating circuit. The Finder 22.22.8.120.4000 uses a 120 V AC electromagnetic coil to operate two normally open contacts, enabling compatible electrical circuits to be switched together from a single control signal.
When the coil is energised, both normally open contacts close and complete their respective load circuits. When the coil supply is removed, the relay returns to its unenergised state and both contacts open. This monostable switching arrangement is useful in installations where connected equipment must operate only while the appropriate control signal is present.
The relay's two-pole contact configuration simplifies applications requiring coordinated switching of two circuits. Its modular DIN rail mounting format allows integration alongside circuit protection devices, timers, monitoring relays and other electrical control components.
Before installation, connected loads must be assessed against the manufacturer's specified contact ratings, utilisation categories and inrush-current limits. The 120 V AC coil rating refers to the relay's operating supply and should not be confused with the permissible voltage of the switched load circuits.
Typical Applications
- Electrical distribution board switching.
- Commercial and industrial lighting control.
- Two-circuit remote switching installations.
- Building automation and electrical control systems.
- Industrial electrical control panels.
- Commercial building services installations.
- Automatic lighting control arrangements.
- Control of appropriately rated electrical equipment.
- DIN rail-mounted relay replacement projects.
- Electrical installation upgrades and refurbishment.
Technical Specifications
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| Device Type | Modular Relay | |
|---|---|---|
| Mounting Type | DIN rail | |
| Switching Current (A) | 20 A | |
| Manufacturer | Finder | |
| Series | 22 Series | |
| Relay type | 22.22 | |
| Model | 22.22.8.120.4000 | |
| Manufacturer part number | 22.22.8.120.4000 | |
| Product type | Modular installation relay | |
| Relay operation | Monostable | |
| Number of poles | 2 | |
| Contact configuration | 2 NO (DPST-NO) | |
| Rated coil voltage | 120 V AC | |
| Coil supply type | Alternating current (AC) | |
| Rated contact current | 20 A | |
| Contact material | Silver tin oxide (AgSnO2) | |
| Mounting method | 35 mm DIN rail | |
| Primary function | Remote electrical load switching | |
| Application | Electrical distribution, lighting control and building automation |
Frequently Asked Questions
What is the Finder 22.22.8.120.4000 used for?
The Finder 22.22.8.120.4000 is a modular installation relay designed for remote switching of compatible electrical loads. Its two normally open contacts allow two electrical circuits to be operated together using a single control signal.
What coil voltage does the Finder 22.22.8.120.4000 require?
The relay uses a 120 V AC operating coil. Applying the correct control voltage energises the electromagnetic mechanism and closes both normally open contacts.
What is the contact rating of the Finder 22.22.8.120.4000?
The Finder 22.22.8.120.4000 features 20 A rated contacts. The suitability of individual loads must be checked against Finder's specified contact voltage, switching characteristics and utilisation ratings.
Does the Finder 22.22.8.120.4000 have normally open or normally closed contacts?
The relay has two normally open (2 NO) contacts, also described as a DPST-NO configuration. Both contacts close when the 120 V AC coil is energised and return to their open positions when the coil supply is removed.
How is the Finder 22.22.8.120.4000 installed?
The relay is designed for installation onto a standard 35 mm DIN rail inside a suitable electrical distribution board or control enclosure. Installation should follow Finder's wiring instructions and the applicable electrical safety requirements.
Trusted by Electrical Installers and Automation Professionals Worldwide
Finder 22 Series modular installation relays provide practical switching solutions for electrical distribution, lighting control and building automation systems. The Finder 22.22.8.120.4000 combines a 120 V AC operating coil, two normally open 20 A contacts and DIN rail mounting to support dependable electrical control in professional installations.
