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20.22.8.240.4000 Finder step relay 2 phase switch 2NO 240V
Finder 20.22.8.240.4000 modular step relay, a 16 A impulse switching relay with 240 V AC coil supply for DIN rail mounted lighting and electrical control applications.
Why Choose the Finder 20.22.8.240.4000 Modular Step Relay?
The Finder 20.22.8.240.4000 is a compact modular impulse step relay designed for reliable switching control in residential, commercial and industrial electrical installations. As part of the Finder Series 20 modular step relay range, it provides dependable control of lighting and other electrical loads using momentary impulse commands.
This bistable relay helps simplify multi-point switching systems by allowing several push buttons to control the same circuit. Its slim modular design, DIN rail mounting capability and integrated test button make it suitable for modern electrical distribution boards and automation applications.
With a 240 V AC coil supply and 16 A switching capacity, the Finder 20.22.8.240.4000 is ideal for lighting control, building automation and electrical installations requiring reliable impulse switching with two normally open contacts.
Key Advantages
- Compact modular impulse relay for DIN rail installation.
- 16 A switching capacity for lighting and electrical loads.
- 240 V AC coil voltage for standard electrical installations.
- Two normally open contacts provide flexible load control.
- Integrated test button and mechanical indicator for easier operation and maintenance.
- Slim 17.5 mm modular width saves space in distribution boards.
Key Features
- Finder Series 20 modular step relay.
- Impulse / bistable relay operation.
- 2 NO contact configuration.
- 16 A rated contact current.
- 240 V AC coil supply.
- DIN rail mounting according to EN 60715.
- Silver tin oxide AgSnO₂ contact material.
- Mechanical indicator and test button included.
Reliable Impulse Switching for Electrical Installations
Impulse relays such as the Finder 20.22.8.240.4000 provide efficient electrical control by changing contact state each time a control pulse is received. This allows multiple push buttons to operate the same lighting circuit without complex wiring arrangements.
The Finder Series 20 range is designed for professional electrical installations where compact dimensions, dependable switching performance and straightforward DIN rail integration are required.
Typical Applications
- Lighting control systems.
- Residential and commercial electrical installations.
- Staircase and corridor lighting control.
- Building automation systems.
- Electrical distribution boards.
- Industrial and control panel installations.
Technical Specifications
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| Device Type | Latching / Impulse Relay | |
|---|---|---|
| Timing Function | Pulse | |
| Switching Current (A) | 16 A | |
| Load Voltage | 400 V AC | |
| Mounting Type | DIN rail | |
| Coil / Supply Voltage | 240 V AC | |
| Contacts | 4NO | |
| IP Rating | IP20 | |
| Manufacturer | Finder | |
| Series | 20 Modular Step Relays | |
| Model | 20.22.8.240.4000 | |
| Product type | Impulse step relay | |
| Relay function | Bistable / impulse switching | |
| Contact configuration | 2 normally open (2 NO) | |
| Rated current | 16 A | |
| Coil voltage | 240 V AC | |
| Switching voltage | Up to 400 V AC | |
| Mounting type | 35 mm DIN rail mounting | |
| Width | 17.5 mm | |
| Protection rating | IP20 | |
| Operating temperature | -40 to +40 °C | |
| Contact material | AgSnO₂ |
Frequently Asked Questions
What is the Finder 20.22.8.240.4000 used for?
The Finder 20.22.8.240.4000 is an impulse step relay used to control lighting and electrical loads from multiple push button locations.
What coil voltage does this relay require?
The Finder 20.22.8.240.4000 operates with a 240 V AC coil supply.
How much current can the relay switch?
The relay has a rated switching capacity of 16 A for suitable electrical loads.
How is the Finder 20.22.8.240.4000 installed?
The relay is designed for installation on a standard 35 mm DIN rail inside electrical distribution boards and control cabinets.
How many contacts does this step relay have?
The Finder 20.22.8.240.4000 features two normally open contacts for switching applications.
Trusted by Electrical Installers Worldwide
Finder modular step relays are widely used by electrical professionals for reliable lighting control, compact installation and dependable switching performance in modern electrical systems.
