Finder 20.21.8.230.4000 modular step relay with a 230 V AC coil and 16 A SPST-NO switching contact for DIN rail mounted control applications.
£27.66
The Finder 20.21.8.230.4000 is a reliable modular step relay designed for electrical switching and control applications in industrial and building automation systems. Part of the Finder 20 Series, this compact relay provides dependable switching performance with a direct 35 mm DIN rail mounting design.
This step relay is engineered for applications requiring efficient control of lighting circuits, electrical loads and automation equipment. Its integrated mechanical indicator, test button and identification label simplify installation, commissioning and maintenance in professional electrical systems.
With a 230 V AC coil supply and a 16 A switching capacity, the Finder 20.21.8.230.4000 provides reliable single-phase switching performance for industrial, commercial and building automation installations. Its SPST-NO contact configuration enables straightforward integration into electrical control circuits.
Step relays such as the Finder 20.21.8.230.4000 provide controlled switching of electrical circuits through pulse commands, making them ideal for applications where multiple switching states or remote control operation are required.
The Finder 20 Series combines compact DIN rail installation with robust electrical performance, allowing engineers and installers to create reliable control solutions for lighting, automation and industrial applications.
| Manufacturer | Finder |
|---|---|
| Series | 20 Series |
| Model | 20.21.8.230.4000 |
| Product type | Modular step relay |
| Contact configuration | SPST-NO |
| Coil voltage | 230 V AC |
| Contact current | 16 A |
| Contact voltage | 250 V AC |
| Mounting type | 35 mm DIN rail mounting |
| Terminal type | Screw terminals |
| Contact material | Silver tin oxide |
| Protection rating | IP20 |
| Dimensions (H × W × D) | approx. 87.5 × 17.5 × 58.4 mm |
This modular step relay is used for switching and controlling electrical loads in industrial, commercial and building automation systems.
The Finder 20.21.8.230.4000 operates with a 230 V AC coil supply.
The relay supports a maximum contact current of 16 A.
The relay is designed for direct installation on a standard 35 mm DIN rail.
The relay features a SPST-NO normally open contact configuration.
Finder 20 Series modular relays are widely used by electrical professionals to provide dependable switching, compact installation and reliable control in modern automation systems.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...