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RZ3A48D25P – RZ 25A 480V DC IP + OVER TEMP PROTECTION
Carlo Gavazzi RZ3A48D25P three-phase solid state relay with 480 V AC switching, 25 A output rating, 4–32 V DC control input and integrated over-temperature protection for industrial automation systems.
£187.18
Why Choose the Carlo Gavazzi RZ3A48D25P Solid State Relay?
The Carlo Gavazzi RZ3A48D25P 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 combines zero-cross semiconductor switching technology with integrated over-temperature protection and alarm output 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 applications requiring dependable switching performance, efficient thermal management and long operational life.
With a 480 V AC operational voltage, a 25 A three-phase output rating, a 4–32 V DC control input and integrated thermal protection, the RZ3A48D25P is suitable for controlling industrial loads including heaters, machinery and automation equipment.
Key Advantages
- Advanced three-phase zero-cross solid state relay for industrial switching.
- 25 A AC output current rating for industrial applications.
- 480 V AC operational voltage suitable for high-power industrial systems.
- 4–32 V DC control input compatible with PLCs and automation controllers.
- Integrated over-temperature protection with alarm output.
- Silent semiconductor switching with no mechanical contact wear.
Key Features
- Carlo Gavazzi RZ3A three-phase solid state relay series.
- Zero-cross switching technology.
- 3-pole AC switching output.
- 25 A rated operational current.
- 4–32 V DC control voltage.
- Integrated over-temperature protection and alarm indication.
- Built-in varistor and snubber network protection.
- LED indication for relay operation and thermal alarm status.
- Panel-mount industrial housing.
Reliable Three-Phase Switching for Industrial Automation
Solid state relays such as the Carlo Gavazzi RZ3A48D25P 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. The RZ3A48D25P adds thermal monitoring capability to help protect the relay 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 | |
|---|---|---|
| Terminal Type | Screw | |
| Load Voltage | 480 V AC | |
| Switching Current (A) | 25 A | |
| Coil / Supply Voltage | 12 V DC, 24 V DC, 5 V DC | |
| IP Rating | IP10 | |
| Manufacturer | Carlo Gavazzi | |
| Series | RZ3A Three-Phase Solid State Relays | |
| Model | RZ3A48D25P | |
| Product type | Three-phase solid state relay | |
| Switching mode | Zero cross switching | |
| Number of poles | 3 | |
| Rated operational voltage | 480 V AC | |
| Operational voltage range | 42–530 V AC | |
| Control voltage | 4–32 V DC | |
| Rated operational current | 25 A AC | |
| AC-53a motor switching rating | 5 A AC | |
| Minimum operational load current | 150 mA AC | |
| Operational frequency | 45–65 Hz | |
| Blocking voltage | 1200 Vp | |
| Non-repetitive surge current | 325 Ap (10 ms) | |
| I²t for fusing | 525 A²s | |
| Off-state leakage current | <3 mA | |
| On-state voltage drop | <1.6 Vrms | |
| Critical dV/dt off state | ≥500 V/μs | |
| Protection rating | IP10 | |
| Connection type | Screw terminals with captive clamp | |
| 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 RZ3A48D25P used for?
The RZ3A48D25P is a three-phase solid state relay used for switching industrial AC loads in automation, heating and machine control applications.
What voltage can the RZ3A48D25P 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 RZ3A48D25P provides a 25 A AC operational current rating for three-phase industrial loads.
What control voltage does the relay require?
The relay accepts a 4–32 V DC control input.
What protection features are included?
The RZ3A48D25P 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.
