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RA4850H12PCS – SSR SENSE ZS 480V 50A PNP NC
Carlo Gavazzi RA4850H12PCS solid state relay, a 50 A single-phase zero-cross switching relay with system monitoring designed for industrial AC load control applications.
£67.86
Why Choose the Carlo Gavazzi RA4850H12PCS Solid State Relay?
The Carlo Gavazzi RA4850H12PCS is a high-performance solid state relay (SSR) designed for reliable switching and control of single-phase AC loads in industrial automation, heating systems and power control applications. As part of the trusted Carlo Gavazzi RA series, this panel-mounted relay combines zero-cross switching technology with integrated system monitoring for dependable operation in demanding industrial environments.
This solid state relay provides fast, silent and wear-free electronic switching compared with traditional electromechanical relays. The RA4850H12PCS includes system monitoring and a normally closed PNP alarm output, helping engineers monitor operating conditions and improve maintenance diagnostics in automated installations.
With a rated operating current of 50 A AC and an operating voltage range of 180–530 V AC, the RA4850H12PCS is suitable for controlling industrial heating equipment, temperature control systems and other single-phase AC loads. Its compact panel-mount format allows straightforward installation with suitable thermal management accessories.
Key Advantages
- Reliable solid state relay designed for industrial switching applications.
- 50 A AC load current rating for demanding power control systems.
- 180–530 V AC operating voltage range suitable for industrial applications.
- Zero-cross switching reduces electrical noise and stress on connected loads.
- Integrated system monitoring with normally closed PNP alarm output.
- Compact panel-mounted design for control cabinets and machinery.
Key Features
- Carlo Gavazzi RA series solid state relay.
- 50 A rated AC-51 current.
- 15 A rated AC-53a current.
- 180–530 V AC operating voltage.
- 20–32 V DC external supply.
- Zero-cross switching technology.
- Single-pole panel mounting configuration.
- System monitoring with normally closed PNP alarm output.
- Screw terminal power connection.
Reliable Solid State Switching for Industrial Control
Solid state relays such as the Carlo Gavazzi RA4850H12PCS provide fast electronic switching without mechanical contacts, reducing wear and improving long-term reliability. Zero-cross switching helps minimise electrical interference while providing smooth control of AC loads.
The RA series is designed for automation engineers requiring dependable switching solutions in industrial machinery, heating control and process applications. Integrated monitoring functions allow improved diagnostics and support efficient maintenance strategies.
Typical Applications
- Industrial heating and temperature control systems.
- Ovens, furnaces and thermal processing equipment.
- Machine automation and control panels.
- Industrial power switching applications.
- Process control equipment.
- OEM machinery and manufacturing systems.
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 | RA Solid State Relays | |
| Model | RA4850H12PCS | |
| Product type | Solid state relay | |
| Number of poles | 1-pole | |
| Rated operating current AC-51 | 50 A | |
| Rated operating current AC-53a | 15 A | |
| Operating voltage | 180–530 V AC | |
| Control voltage | 7–32 V DC | |
| External supply | 20–32 V DC | |
| Switching mode | Zero cross | |
| Alarm output | Normally closed PNP | |
| Mounting type | Panel mounting | |
| Connection type | Screw terminals |
Frequently Asked Questions
What is the Carlo Gavazzi RA4850H12PCS used for?
The RA4850H12PCS is a solid state relay used for switching and controlling single-phase AC loads in industrial automation and power control applications.
What current rating does this solid state relay support?
The relay supports a rated operating current of 50 A AC for AC-51 applications.
What voltage range does the RA4850H12PCS operate with?
The RA4850H12PCS operates with an AC load voltage range of 180–530 V AC.
What switching technology is used?
The relay uses zero-cross switching technology to provide reliable AC load control with reduced electrical noise.
Where is this relay typically installed?
The relay is typically installed in electrical control panels and industrial machinery using suitable thermal management accessories.
Trusted by Industrial Automation Professionals
Carlo Gavazzi RA series solid state relays are widely used by automation engineers and machine builders to provide reliable electronic switching, efficient power control and long service life in industrial systems.
