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RA4425HA08 – SSR ZS 400V 25A 90-280V
Carlo Gavazzi RA4425HA08 single-phase solid state relay with zero-cross switching, 25 A load rating and 90–280 V AC/DC control input for industrial AC load switching.
Why Choose the Carlo Gavazzi RA4425HA08 Solid State Relay?
The Carlo Gavazzi RA4425HA08 is a reliable single-phase solid state relay (SSR) designed for efficient switching of industrial AC loads. As part of the Carlo Gavazzi RA44 series solid state relay range, it provides zero-cross switching technology, robust semiconductor output control and dependable performance for industrial automation and control panel applications.
This compact solid state relay provides fast, silent and wear-free electronic switching compared with traditional electromechanical relays. Its panel-mounted design, screw terminals and solid-state construction make it suitable for reliable installation in industrial control systems where long service life and reduced maintenance are required.
With a 25 A load current rating, a 42–480 V AC operating voltage range and a 90–280 V AC/DC control voltage range, the RA4425HA08 is suitable for switching industrial AC loads in automation panels, heating systems and machine control equipment.
Key Advantages
- Reliable single-phase solid state relay for industrial switching applications.
- Zero-cross switching technology helps reduce electrical stress during switching operations.
- 25 A load current rating for industrial AC applications.
- 90–280 V AC/DC control input for compatibility with higher-voltage control systems.
- Panel mounting design for straightforward control cabinet installation.
- Solid state technology provides long operational life with reduced maintenance requirements.
Key Features
- Carlo Gavazzi RA44 series solid state relay.
- Single-pole SPST-NO semiconductor output.
- Zero-cross switching output.
- 25 A maximum load current.
- 42–480 V AC load voltage range.
- 90–280 V AC/DC control voltage range.
- Panel mounting design.
- Screw terminal connections.
- Thyristor output technology.
- LED status indication.
Reliable Solid State Switching for Industrial Automation
Solid state relays such as the Carlo Gavazzi RA4425HA08 provide dependable electronic switching without mechanical contacts, making them ideal for industrial systems where reliability, fast response and long service life are important.
The RA44 series is designed for automation engineers and control panel builders requiring efficient AC load switching, compact installation and reliable semiconductor-based control solutions.
Typical Applications
- Industrial heating control systems.
- Process temperature regulation equipment.
- Industrial automation panels.
- AC load switching applications.
- Machine control systems.
- Manufacturing and production equipment.
Technical Specifications
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| Device Type | Solid State Relay | |
|---|---|---|
| Terminal Type | Screw | |
| Switching Current (A) | 25 A | |
| 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 | RA44 | |
| Model | RA4425HA08 | |
| Product type | Solid state relay | |
| Relay configuration | SPST-NO | |
| Number of phases | 1-phase | |
| Mounting type | Panel mounting | |
| Switching mode | Zero cross | |
| Load current | 25 A | |
| Operating voltage | 42–480 V AC | |
| Control voltage | 90–280 V AC/DC | |
| Terminal type | Screw terminals | |
| Output type | Thyristor | |
| Operating temperature range | -20 to +70 °C | |
| Approvals | CE, cURus, CSA, EAC |
Frequently Asked Questions
What is the Carlo Gavazzi RA4425HA08 used for?
The RA4425HA08 is a solid state relay used for switching industrial AC loads in automation and control systems.
What current rating does the RA4425HA08 support?
The relay supports a maximum load current of 25 A for suitable industrial applications.
What voltage range does the RA4425HA08 operate with?
The RA4425HA08 operates with an AC load voltage range of 42–480 V AC.
What control voltage does the RA4425HA08 require?
The RA4425HA08 uses a 90–280 V AC/DC control voltage input.
What switching technology does this solid state relay use?
The relay uses zero-cross switching technology for reliable electronic switching with reduced electrical stress.
Trusted by Industrial Automation Professionals
Carlo Gavazzi RA44 series solid state relays are widely used in industrial automation systems where reliable switching, compact installation and long operational life are required.
