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RZ3A48A75P – RZ 75A 480V AC IP + OVER TEMP PROTECTION
Carlo Gavazzi RZ3A48A75P three-phase solid state relay with 480 V AC switching, 75 A output rating and integrated over-temperature protection for industrial automation systems.
£261.76
Why Choose the Carlo Gavazzi RZ3A48A75P Solid State Relay?
The Carlo Gavazzi RZ3A48A75P is a high-performance three-phase solid state relay (SSR) designed for reliable switching of industrial AC loads in automation systems, heating equipment and machine control applications. As part of the advanced Carlo Gavazzi RZ3A series, it provides zero-cross switching technology, high current capability and integrated over-temperature protection for demanding industrial environments.
This solid state relay uses semiconductor switching technology to provide fast, silent and wear-free operation compared with traditional electromechanical relays. The RZ3A series is designed for three-phase switching applications requiring dependable performance, efficient thermal management and long operational life.
With a 480 V AC rated operational voltage, a 75 A three-phase output rating and a 24–275 V AC / 24–50 V DC control input, the RZ3A48A75P is suitable for controlling high-power industrial loads including heaters, motors and automation equipment.
Key Advantages
- Advanced three-phase zero-cross solid state relay for industrial switching.
- 75 A AC output current rating for high-power applications.
- 480 V AC operational voltage suitable for industrial power systems.
- Integrated over-temperature protection and alarm output.
- Silent semiconductor switching with no mechanical contact wear.
- Fast response and reliable operation in demanding automation environments.
Key Features
- Carlo Gavazzi RZ3A three-phase solid state relay series.
- Zero voltage switching technology.
- 3-pole AC switching output.
- 75 A rated operational current.
- 24–275 V AC / 24–50 V DC control input.
- Integrated over-temperature protection.
- Alarm output for thermal fault indication.
- LED indication for relay operation and protection status.
- Panel-mount industrial housing.
Reliable Three-Phase Switching for Industrial Automation
Solid state relays such as the Carlo Gavazzi RZ3A48A75P provide reliable electronic switching for industrial loads where frequent operation, silent performance and long service life are required. Semiconductor switching eliminates mechanical wear, making the relay suitable for demanding automation environments.
The RZ3A series is designed for machine builders, electrical engineers and control panel manufacturers requiring dependable three-phase load switching with integrated protection features. Its thermal monitoring capability helps protect the relay and connected equipment during demanding operating conditions.
Typical Applications
- Industrial heating systems.
- Plastic processing machinery.
- Ovens and thermal control equipment.
- Motor switching applications.
- Packaging and production machinery.
- Automation control panels.
Technical Specifications
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| Device Type | Solid State Relay | |
|---|---|---|
| Load Voltage | 480 V AC | |
| Switching Current (A) | 75 A | |
| Coil / Supply Voltage | 110 V AC, 115 V AC, 120 V AC, 208 V AC, 220 V AC, 230 V AC, 24 V AC, 24 V DC, 240 V AC, 48 V AC, 48 V DC | |
| IP Rating | IP10 | |
| Manufacturer | Carlo Gavazzi | |
| Series | RZ3A Three-Phase Solid State Relays | |
| Model | RZ3A48A75P | |
| Product type | Three-phase solid state relay | |
| Switching mode | Zero switching | |
| Rated operational voltage | 480 V AC | |
| Operational voltage range | 42–530 V AC | |
| Control voltage | 24–275 V AC / 24–50 V DC | |
| Rated operational current | 75 A AC | |
| AC-53a motor switching rating | 20 A AC | |
| Minimum operational load current | 400 mA | |
| Poles | 3-phase switching | |
| Operational frequency | 45–65 Hz | |
| Blocking voltage | 1200 Vp | |
| Over-temperature protection | Integrated | |
| Alarm output | Included | |
| Response time pick-up | approx. 20 ms | |
| Response time drop-out | approx. 30 ms | |
| Protection rating | IP10 | |
| Dimensions (H × W × D) | approx. 103 × 73.5 × 41 mm | |
| Weight | approx. 380 g | |
| Operating temperature | -30°C to +80°C |
Frequently Asked Questions
What is the Carlo Gavazzi RZ3A48A75P used for?
The RZ3A48A75P is a three-phase solid state relay used for switching high-power AC loads in industrial automation and control applications.
What voltage can the RZ3A48A75P switch?
The relay is designed for 480 V AC applications with an operational voltage range of approximately 42–530 V AC.
What is the output current rating of this solid state relay?
The RZ3A48A75P provides a 75 A AC operational current rating for three-phase industrial loads.
What control voltage does the relay require?
The relay accepts a 24–275 V AC or 24–50 V DC control input.
What protection features are included?
The RZ3A48A75P includes integrated over-temperature protection and alarm output to help protect the relay during thermal overload conditions.
Trusted by Industrial Automation Engineers Worldwide
Carlo Gavazzi RZ3A solid state relays are used by automation engineers and machine builders to deliver reliable three-phase switching, efficient control and long-lasting semiconductor-based performance.
