Finder 77.55.9.024.8650 solid state relay interface module with 24 V DC control input designed for reliable switching in industrial automation systems.
£56.18
The Finder 77.55.9.024.8650 is a compact and reliable solid state relay (SSR) interface module designed for fast, silent and maintenance-free switching in industrial automation and control applications. As part of the advanced Finder 77 Series solid state relay range, it provides efficient switching performance for PLC interfaces, machine control systems and electrical panels.
This solid state relay offers long operational life through semiconductor switching technology, eliminating mechanical wear associated with traditional electromechanical relays. Its slim design and integrated status indication make it ideal for applications where space saving, reliability and rapid switching are important.
With a 24 V DC control input and a solid state switching output, the Finder 77.55.9.024.8650 is suitable for industrial automation systems requiring dependable interface control between electronic outputs and electrical loads.
Solid state relays such as the Finder 77.55.9.024.8650 provide fast and reliable electrical switching by using semiconductor technology instead of mechanical contacts. This reduces wear, improves switching speed and increases operational reliability in demanding control applications.
The Finder 77 Series is designed for automation engineers and panel builders requiring compact relay interface solutions for PLC systems, machinery and industrial equipment.
| Voltage | 600 V |
|---|---|
| Manufacturer | Finder |
| Series | 77 Series / 77.55 |
| Model | 77.55.9.024.8650 |
| Product type | Solid state relay (SSR) |
| Relay variant | Single-phase |
| Output configuration | SPST-NO / 1 Form A |
| Maximum load current | 50 A with suitable heatsink |
| Minimum load current | 250 mA |
| Control voltage | 4–32 V DC |
| Nominal control voltage | 24 V DC |
| Load voltage | 43.2–660 V AC |
| Output type | AC |
| Switching method | Zero-cross / zero-voltage switching |
| Maximum turn-on time | 10 ms |
| Off-state leakage current | 10 mA |
| Terminal type | Screw terminals |
| Mounting type | Panel / heatsink mounting |
| Package style | Hockey puck |
| Protection rating | IP20 |
| Operating temperature | -30 to +80 °C |
| Dimensions | 57.7 × 44.5 × 36.4 mm |
| Approvals | CE, cULus, EAC |
| Country of origin | Italy |
| HS Code | 85365003 |
The Finder 77.55.9.024.8650 is a solid state relay interface module used for reliable switching and control in industrial automation systems.
The relay uses a 24 V DC control input for connection to automation and control systems.
Solid state switching provides fast operation, silent performance and improved service life by eliminating mechanical contact wear.
The module is typically installed in electrical control panels, automation cabinets and industrial interface systems.
The Finder 77.55.9.024.8650 belongs to the Finder 77 Series solid state relay range.
Finder solid state relay interfaces are widely used by electrical engineers and automation specialists to deliver reliable, compact and efficient switching solutions for modern industrial control 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...