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RA4825HA12 – SSR ZS 480V 25A 90-280V
Carlo Gavazzi RA4825HA12 single-phase solid state relay with zero-switching technology, 25 A current rating and 90–280 V AC/DC control input for industrial AC load control.
£41.02
Why Choose the Carlo Gavazzi RA4825HA12 Solid State Relay?
The Carlo Gavazzi RA4825HA12 is a reliable single-phase solid state relay (SSR) designed for efficient electronic switching of AC loads in industrial automation, heating systems and power control applications. As part of the proven Carlo Gavazzi RA48 solid state relay series, it provides zero-switching technology, robust semiconductor performance and dependable operation for demanding industrial environments.
This panel-mounted SSR provides fast, silent and maintenance-free switching compared with conventional electromechanical relays. Its thyristor output technology improves reliability for applications requiring frequent switching cycles, while the compact hockey-puck style housing enables straightforward installation with suitable thermal management.
With a rated operating current of 25 A AC, an operating voltage range of 42–530 V AC and a 90–280 V AC/DC control input, the RA4825HA12 is ideal for industrial load switching applications including heating control, machinery and automation systems.
Key Advantages
- Reliable solid state relay designed for industrial switching applications.
- 25 A AC rated current suitable for industrial loads.
- Zero-switching technology reduces electrical stress during operation.
- 90–280 V AC/DC control input compatible with a wide range of control systems.
- Silent, fast and wear-free semiconductor switching.
- Panel mount design for industrial control cabinets.
Key Features
- Carlo Gavazzi RA48 series solid state relay.
- Single-pole AC solid state switching.
- 25 A AC rated operating current.
- 42–530 V AC operating voltage range.
- 90–280 V AC/DC control voltage range.
- Zero-switching output technology.
- SPST-NO (1 Form A) output configuration.
- Back-to-back SCR output technology.
- Screw terminal connections.
Reliable Electronic Power Switching for Industrial Systems
Solid state relays such as the Carlo Gavazzi RA4825HA12 provide dependable electronic switching by using semiconductor technology instead of mechanical contacts. This enables silent operation, rapid response and extended service life in applications requiring frequent switching cycles.
The RA48 series is designed for industrial automation engineers requiring reliable AC load control, compact installation and efficient switching performance. Zero-switching technology helps minimise electrical stress while maintaining accurate control of connected equipment.
Typical Applications
- Industrial heating control systems.
- Temperature regulation equipment.
- Industrial automation panels.
- Machine control systems.
- Power switching applications.
- Process control equipment.
Technical Specifications
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| Device Type | Solid State Relay | |
|---|---|---|
| Terminal Type | Screw | |
| Mounting Type | Panel | |
| Coil / Supply Voltage | 110 V AC, 110 V DC, 115 V AC, 120 V AC, 125 V DC, 208 V AC, 220 V AC, 220 V DC, 230 V AC, 240 V AC, 250 V DC | |
| Manufacturer | Carlo Gavazzi | |
| Series | RA48 Solid State Relays | |
| Model | RA4825HA12 | |
| Product type | Solid state relay | |
| Relay configuration | SPST-NO (1 Form A) | |
| Number of phases | 1-phase | |
| Switching mode | Zero switching | |
| Rated operating current | 25 A AC | |
| Operating voltage | 42–530 V AC | |
| Control voltage | 90–280 V AC/DC | |
| Blocking voltage | 1200 V peak | |
| Output type | Back-to-back SCR | |
| Mounting type | Panel / chassis mounting | |
| Connection type | Screw terminals | |
| Operating temperature | -20 to 70 °C | |
| Dimensions (H × W × D) | approx. 24.5 × 44.5 × 57.8 mm |
Frequently Asked Questions
What is the Carlo Gavazzi RA4825HA12 used for?
The RA4825HA12 is a single-phase solid state relay used for reliable electronic switching of AC loads in industrial automation and control applications.
What current rating does the RA4825HA12 support?
The relay supports a rated operating current of 25 A AC for industrial switching applications.
What voltage range does this solid state relay operate with?
The RA4825HA12 operates with an AC load voltage range of 42–530 V AC.
What switching technology does the RA4825HA12 use?
The relay uses zero-switching technology with semiconductor output switching for reliable AC load control.
Where is the RA4825HA12 typically installed?
The relay is typically installed inside industrial control panels for automation, heating and AC power switching applications.
Trusted by Industrial Automation Professionals
Carlo Gavazzi solid state relays are widely used in industrial automation applications where reliable, efficient and maintenance-free electronic switching is required.
