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20.21.8.230.0000 Finder Modular relay 1phase switch 1 NO AC 230V
MPN: 20.21.8.230.0000
Alt. SKU: 202182300000
Special Price
£22.28
£18.57
Regular Price
£29.71
20.21.8.230.0000 Finder Modular relay 1phase switch 1 NO AC 230V is available to buy in increments of 5
Why Choose the Finder 20.21 Modular Step Relay
The Finder 20.21.8.230.0000 is a compact modular step relay for lighting and load control from multiple pushbuttons. It provides a single phase switch with 1 NO contact rated 16 A, driven by a 230 V AC coil, and mounts directly on a 35 mm DIN rail. It is only 17.4 mm wide and includes a test button with a mechanical position indicator for clear status on site.
Designed for stairwell and corridor lighting or general switching, the 20.21 offers up to 7 switching sequences and can interface with illuminated pushbuttons via the Finder 026.00 adaptor, making it flexible for both new builds and retrofits.
Key Features
- Modular step relay with 1 NO contact, 16 A rating.
- 230 V AC coil for direct mains control.
- DIN rail 35 mm mounting, 17.4 mm one module width.
- Test button and mechanical indicator on the front.
- Up to 7 switching sequences for step control.
- Works with illuminated pushbuttons using adaptor 026.00.
- Cadmium free contact material.
Technical Specifications
- Manufacturer: Finder
- Series: 20 Series modular step relays
- Type: 20.21
- Model: 20.21.8.230.0000
- Function: Step relay, single phase switch
- Contacts: 1 NO, 16 A rating.
- Coil voltage: 230 V AC.
- Module width: 17.4 mm, one DIN module.
- Mounting: 35 mm DIN rail EN 60715.
- Front controls: Test button with mechanical indicator.
- Switching sequences: up to 7 selectable.
- Accessory: Adaptor 026.00 for illuminated pushbuttons.
- Typical use: Stairwell and corridor lighting, general two wire step control.
Applications
- Stairwell and corridor lighting controlled from multiple pushbuttons.
- General purpose step switching for loads within 16 A rating.
- Retrofit upgrades where DIN rail space is limited.
Frequently Asked Questions
- What does a modular step relay do
- What contact and rating does this version have
- What is the coil voltage
- How does it mount in the enclosure
- Can I use illuminated pushbuttons
Trusted By Installers
"Slim one module relay with a clear indicator makes step lighting jobs quick and tidy." Electrical Contractor, UK
It latches the output on and off in steps each time a momentary pushbutton is pressed, ideal for lighting controlled from multiple locations.
This 20.21 variant has 1 normally open contact rated up to 16 A for suitable AC loads.
The coil is 230 V AC for direct mains operation. Other coil voltages exist in the range if needed.
Directly onto a 35 mm DIN rail to EN 60715. The body is one module wide at 17.4 mm.
Yes. Use the Finder 026.00 adaptor to connect illuminated pushbuttons in the coil circuit.
| Manufacturer Part Number | 20.21.8.230.0000 |
|---|---|
| Range | 20 |
| Manufacturer | Finder |
| Packed Quantity | 5 |
| Barcode | 8012823236797 |
| Alternative Product SKU | 202182300000 |
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