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RA4825H12POS – SSR SENSE ZS 480V 25A PNP NO
Carlo Gavazzi RA4825H12POS single-phase solid state relay with zero-cross switching, system monitoring, 25 A current rating and normally open PNP alarm output.
£62.64
Why Choose the Carlo Gavazzi RA4825H12POS Solid State Relay?
The Carlo Gavazzi RA4825H12POS is an advanced single-phase solid state relay (SSR) designed for reliable electronic switching and system monitoring of AC loads in industrial automation, heating control and power switching applications. As part of the trusted Carlo Gavazzi RA48 solid state relay series, it combines zero-cross switching technology, semiconductor reliability and integrated fault monitoring for demanding industrial environments.
This panel-mounted SSR provides fast, silent and maintenance-free switching compared with conventional electromechanical relays. The integrated monitoring function improves system diagnostics, while the normally open PNP alarm output provides reliable status feedback for industrial control systems requiring enhanced operational visibility.
With a rated operating current of 25 A AC, an operating voltage range of 180–530 V AC and a 7–32 V DC control input, the RA4825H12POS is suitable for industrial applications requiring reliable AC load switching with integrated monitoring capabilities.
Key Advantages
- High-performance solid state relay designed for industrial switching applications.
- 25 A AC rated current suitable for industrial loads.
- Zero-cross switching technology reduces electrical stress during switching.
- Integrated system monitoring function for improved fault detection.
- Normally open PNP alarm output for diagnostic signalling.
- Silent, fast and maintenance-free semiconductor switching.
Key Features
- Carlo Gavazzi RA48 series solid state relay.
- Single-pole panel mount SSR.
- 25 A AC-51 rated operating current.
- 5 A AC-53a rated operating current.
- 180–530 V AC operating voltage range.
- 7–32 V DC control voltage.
- 20–32 V DC external supply.
- Zero-cross output switching.
- PNP normally open alarm output.
- Integrated system monitoring.
- Screw terminal power connections.
Reliable Electronic Power Switching for Industrial Systems
Solid state relays such as the Carlo Gavazzi RA4825H12POS provide dependable electronic switching by replacing mechanical contacts with semiconductor technology. 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 accurate AC load control combined with system monitoring capabilities. The integrated diagnostic output helps identify faults quickly, improving machine reliability and reducing unexpected downtime.
Typical Applications
- Industrial heating control systems.
- Temperature regulation equipment.
- Industrial automation panels.
- Machine control systems.
- Process control equipment.
- AC power switching applications.
Technical Specifications
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| Device Type | Solid State Relay | |
|---|---|---|
| Terminal Type | Screw | |
| Mounting Type | Panel | |
| Coil / Supply Voltage | 12 V DC, 24 V DC | |
| Manufacturer | Carlo Gavazzi | |
| Series | RA48 Solid State Relays | |
| Model | RA4825H12POS | |
| Product type | Solid state relay with system monitoring | |
| Relay configuration | 1-pole panel mount SSR | |
| Number of phases | 1-phase | |
| Switching mode | Zero cross | |
| Rated operating current AC-51 | 25 A AC | |
| Rated operating current AC-53a | 5 A AC | |
| Operating voltage | 180–530 V AC | |
| Control voltage | 7–32 V DC | |
| External supply voltage | 20–32 V DC | |
| Alarm output | PNP normally open | |
| Output type | Thyristor | |
| Mounting type | Panel mounting | |
| Connection type | Screw terminals |
Frequently Asked Questions
What is the Carlo Gavazzi RA4825H12POS used for?
The RA4825H12POS is a single-phase solid state relay used for reliable AC load switching with integrated system monitoring in industrial automation applications.
What current rating does the RA4825H12POS support?
The relay supports a rated operating current of 25 A AC for AC-51 applications.
What voltage range does this solid state relay operate with?
The RA4825H12POS operates with an AC voltage range of 180–530 V AC.
What monitoring feature is included?
The relay includes system monitoring with a normally open PNP alarm output for fault indication.
Where is the RA4825H12POS 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 monitored electronic switching is required.
