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RA4425LA08 – SSR ZS 400V 25A 10-90V
Carlo Gavazzi RA4425LA08 solid state relay, a 25 A single phase zero switching relay designed for industrial AC load control applications.
Why Choose the Carlo Gavazzi RA4425LA08 Solid State Relay?
The Carlo Gavazzi RA4425LA08 is a reliable single-phase zero switching solid state relay (SSR) designed for efficient switching of AC loads in industrial automation and control applications. As part of the proven Carlo Gavazzi RA44 solid state relay series, it provides fast, silent and maintenance-free electronic switching for demanding industrial environments.
This solid state relay uses semiconductor switching technology to provide high reliability compared with conventional electromechanical relays. The zero-cross switching function helps reduce electrical noise and stress on connected loads, making the RA4425LA08 suitable for heating, motor and industrial control applications.
With a rated operational current of 25 A AC, an operating voltage range of 42–480 V AC and a 10–90 V AC/DC control input, the RA4425LA08 is designed for integration into industrial control panels where dependable switching performance is required.
Key Advantages
- Reliable solid state relay designed for industrial switching applications.
- 25 A AC load current rating for a wide range of control applications.
- Zero-cross switching technology reduces electrical interference during switching.
- 10–90 V AC/DC control input provides flexible control compatibility.
- Silent semiconductor operation with no mechanical contacts to wear.
- Compact panel mounting design for easy electrical installation.
Key Features
- Carlo Gavazzi RA44 solid state relay series.
- Single-phase zero switching operation.
- 25 A AC rated operational current.
- 42–480 V AC operational load voltage.
- 10–90 V AC/DC control voltage range.
- Thyristor output switching technology.
- Integrated protection against electrical switching stresses.
- Panel mounting format with screw terminals.
Reliable Electronic Switching for Industrial Control
Solid state relays such as the Carlo Gavazzi RA4425LA08 provide dependable electronic switching for industrial loads by using semiconductor technology instead of mechanical contacts. This improves switching speed, reduces wear and enables long operational life in automated systems.
The RA44 series is designed for industrial engineers requiring reliable load control in applications including heating systems, machinery, process equipment and automation panels. Its zero-cross switching capability helps ensure smooth operation and reduced electrical disturbance.
Typical Applications
- Industrial heating control systems.
- Automation and machine control panels.
- Motor and resistive load switching.
- Process control equipment.
- Industrial ovens and temperature regulation systems.
- OEM electrical control assemblies.
Technical Specifications
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| Device Type | Solid State Relay | |
|---|---|---|
| Mounting Type | Panel | |
| Switching Current (A) | 25 A | |
| Load Voltage | 42–480 V AC | |
| Coil / Supply Voltage | 12 V AC, 12 V DC, 24 V AC, 24 V DC, 48 V AC, 48 V DC, 60 V DC, 72 V DC | |
| IP Rating | IP20 | |
| Manufacturer | Carlo Gavazzi | |
| Series | RA44 Solid State Relays | |
| Model | RA4425LA08 | |
| Product type | Solid state relay | |
| Switching type | Zero voltage / zero cross switching | |
| Number of phases | Single-phase | |
| Rated operational current | 25 A AC | |
| Operational voltage range | 42–480 V AC | |
| Control voltage | 10–90 V AC/DC | |
| Blocking voltage | ≥ 850 Vp | |
| Operational frequency | 45–65 Hz | |
| Output type | Thyristor | |
| Protection rating | IP20 | |
| Mounting type | Panel mounting | |
| Weight | approx. 110 g |
Frequently Asked Questions
What is the Carlo Gavazzi RA4425LA08 used for?
The RA4425LA08 is a solid state relay used for switching AC loads in industrial automation, heating and control applications.
What load current can the RA4425LA08 handle?
The relay supports a rated operational current of 25 A AC.
What voltage range does the RA4425LA08 support?
The relay operates with an AC load voltage range of 42–480 V AC.
What control voltage is required?
The RA4425LA08 accepts a 10–90 V AC/DC control input.
What type of switching does this solid state relay use?
The relay uses zero-cross switching to provide reliable electronic switching with reduced electrical interference.
Trusted by Industrial Automation Engineers
Carlo Gavazzi solid state relays are widely used in industrial control systems to provide reliable, efficient and maintenance-free switching performance for automated equipment.
