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20.22.8.120.4000 Finder step relay 2 phase switch 2NO 120V
Finder 20.22.8.120.4000 is a 16 A modular step relay with two normally open silver tin oxide contacts, a 120 V AC coil and DIN-rail mounting for impulse-controlled electrical loads.
Why Choose the Finder 20.22.8.120.4000 Modular Step Relay?
The Finder 20.22.8.120.4000 is a compact and dependable modular step relay designed for impulse-controlled switching in lighting, building automation and electrical distribution applications. As part of the Finder Series 20, it changes contact state whenever its coil receives a momentary control pulse.
Its electromechanical latching operation enables electrical loads to be controlled from multiple momentary push-buttons without requiring the coil to remain continuously energised. A mechanical position indicator and test button support convenient inspection and manual operation during installation, commissioning and maintenance.
With two normally open contacts rated at 16 A, a 120 V AC coil and silver tin oxide contact material, the 20.22.8.120.4000 provides dependable switching of compatible electrical loads. Its compact DIN-rail enclosure and screw terminals simplify installation inside distribution boards and control panels.
Key Advantages
- Impulse-operated modular step relay for centralised load control.
- Two normally open contacts rated at 16 A.
- 120 V AC control coil for compatible control circuits.
- Silver tin oxide contacts provide dependable electrical-load switching.
- Latching operation does not require continuous coil energisation.
- Compact DIN-rail format supports space-efficient panel installation.
Key Features
- Finder Series 20 modular step relay.
- DPST-NO contact configuration.
- 16 A contact current rating.
- 120 V AC coil voltage.
- Maximum switching voltage of 400 V AC.
- Single-coil latching mechanism.
- Integrated mechanical indicator and test button.
- Screw terminals and DIN-rail mounting.
Efficient Impulse Control for Lighting and Electrical Loads
A modular step relay changes its output state each time a momentary voltage pulse is applied to the coil. This allows one electrical load to be switched from several push-button locations while avoiding complex conventional multi-way switching arrangements.
The Finder Series 20 is designed for installation in modular distribution equipment. Its latching mechanism, silver tin oxide contacts, contact-status indication and manual test facility make the 20.22.8.120.4000 suitable for building-control systems requiring reliable impulse operation.
Typical Applications
- Lighting circuits controlled from multiple push-buttons.
- Residential and commercial building automation.
- Stairwell and corridor lighting control.
- Electrical distribution boards.
- Industrial control panels.
- Remote switching of compatible electrical loads.
Technical Specifications
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| Device Type | Latching / Impulse Relay | |
|---|---|---|
| Terminal Type | Screw | |
| Load Voltage | 400 V AC | |
| Mounting Type | DIN rail | |
| Switching Current (A) | 16 A | |
| Coil / Supply Voltage | 120 V AC | |
| Contacts | 4NO | |
| Manufacturer | Finder | |
| Series | Series 20 | |
| Model | 20.22.8.120.4000 | |
| Product type | Modular step relay | |
| Relay function | Impulse / latching | |
| Contact configuration | 2 NO, DPST-NO | |
| Rated contact current | 16 A | |
| Coil voltage | 120 V AC | |
| Coil current | 54 mA | |
| Coil resistance | 680 Ω | |
| Minimum operating voltage | 102 V AC | |
| Maximum switching voltage | 400 V AC | |
| Maximum switching load | 6400 VA | |
| Contact material | Silver tin oxide | |
| Operating temperature | −40 to +40 °C | |
| Mounting type | DIN rail | |
| Terminal type | Screw terminals |
Frequently Asked Questions
What is the Finder 20.22.8.120.4000 used for?
It is used for impulse-controlled switching of lighting and other electrical loads from momentary push-buttons in building and industrial control systems.
What contact configuration does this step relay have?
The relay has two normally open contacts, providing a DPST-NO contact configuration.
What is the contact current rating?
The Finder 20.22.8.120.4000 has a rated contact current of 16 A.
What coil voltage does the relay require?
This exact variant is equipped with a 120 V AC coil.
What contact material is used?
The relay uses silver tin oxide contacts for dependable switching of compatible electrical loads.
Trusted by Electrical Installers Worldwide
Finder Series 20 modular step relays are widely used by electrical installers, panel builders and building-control professionals for dependable impulse switching and space-efficient DIN-rail installation.
