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RA4850LA12 – SSR ZS 480V 50A 10-90V
Carlo Gavazzi RA4850LA12 solid state relay, a 50 A single-phase zero-voltage switching relay designed for industrial AC load control applications.
£46.24
Why Choose the Carlo Gavazzi RA4850LA12 Solid State Relay?
The Carlo Gavazzi RA4850LA12 is a reliable solid state relay (SSR) designed for efficient switching and control of single-phase AC loads in industrial automation, heating systems and power control applications. As part of the proven Carlo Gavazzi RA48 series, this panel-mounted relay provides dependable zero-voltage switching technology for long-lasting operation in demanding industrial environments.
This solid state relay provides fast, silent and wear-free electronic switching compared with conventional electromechanical relays. The RA4850LA12 is designed for applications requiring a high current rating, flexible AC/DC control input and reliable switching performance in industrial control systems.
With a rated operating current of 50 A AC and a load voltage range of 42–530 V AC, the RA4850LA12 is suitable for controlling industrial heating equipment, machinery and other single-phase AC loads. The relay accepts a 10–90 V AC/DC control input and uses a compact panel-mount format for straightforward installation with suitable thermal management.
Key Advantages
- Reliable solid state relay designed for industrial switching applications.
- 50 A AC load current rating for demanding power control systems.
- 42–530 V AC operating voltage range suitable for industrial loads.
- Zero-voltage switching reduces electrical noise and switching stress.
- 10–90 V AC/DC control input for flexible system integration.
- Compact panel-mounted design for electrical cabinets and machinery.
Key Features
- Carlo Gavazzi RA48 series solid state relay.
- 50 A rated AC-51 current.
- 15 A rated AC-53a current.
- 42–530 V AC load voltage range.
- 10–90 V AC/DC control voltage.
- Zero-voltage switching technology.
- Single-phase, 1-pole configuration.
- Screw terminal power connections.
- Panel mounting or heatsink mounting capability.
Reliable Solid State Switching for Industrial Control
Solid state relays such as the Carlo Gavazzi RA4850LA12 provide dependable electronic switching without mechanical contacts, reducing wear and improving operational reliability. Zero-voltage switching helps minimise electrical interference while delivering smooth control of AC loads.
The RA series is designed for automation engineers requiring reliable switching solutions for industrial machinery, heating control and process applications. Its high current capability and wide control voltage range make it suitable for a variety of industrial installations.
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 AC, 12 V DC, 24 V AC, 24 V DC, 48 V AC, 48 V DC, 60 V DC, 72 V DC | |
| Manufacturer | Carlo Gavazzi | |
| Series | RA48 Solid State Relays | |
| Model | RA4850LA12 | |
| Product type | Solid state relay | |
| Number of poles | 1-pole | |
| Number of phases | 1-phase | |
| Rated operating current AC-51 | 50 A | |
| Rated operating current AC-53a | 15 A | |
| Operating voltage | 42–530 V AC | |
| Control voltage | 10–90 V AC/DC | |
| Switching mode | Zero voltage switching | |
| Mounting type | Panel mounting / heatsink mounting | |
| Connection type | Screw terminals | |
| Dimensions (H × W × D) | approx. 29 × 44.5 × 57.8 mm | |
| Weight | approx. 120 g | |
| Operating temperature | -20 to 70 °C |
Frequently Asked Questions
What is the Carlo Gavazzi RA4850LA12 used for?
The RA4850LA12 is a solid state relay used for switching and controlling single-phase AC loads in industrial automation, heating 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 RA4850LA12 operate with?
The RA4850LA12 operates with an AC load voltage range of 42–530 V AC.
What control voltage is required?
The relay accepts a flexible 10–90 V AC/DC control voltage input.
Where is this relay typically installed?
The relay is typically installed inside electrical control panels or mounted with a suitable heatsink in industrial machinery applications.
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.
