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RZ3A40A25 – SSR 3/P 24-440V 25A 24-275VAC
Carlo Gavazzi RZ3A40A25 three phase solid state relay with 25 A AC rating, zero-cross switching and 24–440 V AC operating range for industrial automation applications.
£157.35
Why Choose the Carlo Gavazzi RZ3A40A25 Solid State Relay?
The Carlo Gavazzi RZ3A40A25 is a high-performance three-phase solid state relay (SSR) designed for reliable switching of industrial AC loads in automation, heating and motor control applications. As part of the robust Carlo Gavazzi RZ3A solid state relay series, it provides zero-cross switching, high electrical durability and dependable control for demanding industrial environments.
This panel-mounted solid state relay uses semiconductor switching technology to provide fast, silent and wear-free operation compared with traditional electromechanical relays. Its built-in overvoltage protection and compact construction make it suitable for integration into electrical control panels and industrial automation systems.
With a rated load current of 25 A AC, an operating voltage range of 24–440 V AC and a 24–275 V AC / 24–50 V DC control input, the Carlo Gavazzi RZ3A40A25 provides reliable three-phase switching for industrial equipment and automation applications.
Key Advantages
- Compact three-phase solid state relay for industrial switching applications.
- 25 A AC load current rating for demanding industrial loads.
- Zero-cross switching technology reduces electrical noise and stress on connected loads.
- 24–440 V AC operating voltage range suitable for industrial power systems.
- Built-in overvoltage protection for improved reliability.
- Panel-mounted design for straightforward installation in control cabinets.
Key Features
- Carlo Gavazzi RZ3A solid state relay series.
- Three-phase SSR design.
- 25 A rated current at AC-51 duty.
- 5 A rated current at AC-53a duty.
- Zero-cross switching output mode.
- 24–275 V AC / 24–50 V DC control voltage.
- Built-in overvoltage protection.
- Screw terminal power connection with captive clamp.
- Panel mounting format for industrial control systems.
Reliable Solid State Switching for Industrial Automation
Solid state relays such as the Carlo Gavazzi RZ3A40A25 provide reliable electronic switching for industrial loads without mechanical contact wear. Zero-cross switching technology helps reduce electrical interference while improving the operating life of connected equipment.
The RZ3A series is designed for industrial automation engineers requiring dependable three-phase switching solutions. Its compact panel-mounted format, wide voltage range and robust semiconductor design allow integration into modern electrical control systems.
Typical Applications
- Industrial heating and temperature control systems.
- Three-phase motor switching applications.
- Industrial automation control panels.
- Process equipment and machinery.
- OEM electrical systems.
- Power switching applications requiring silent operation.
Technical Specifications
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| Device Type | Solid State Relay | |
|---|---|---|
| Terminal Type | Screw | |
| Mounting Type | Panel | |
| Coil / Supply Voltage | 110 V AC, 115 V AC, 120 V AC, 208 V AC, 220 V AC, 230 V AC, 24 V AC, 240 V AC, 380 V AC, 400 V AC, 415 V AC, 440 V AC, 48 V AC | |
| IP Rating | IP10 | |
| Manufacturer | Carlo Gavazzi | |
| Series | RZ3A | |
| Model | RZ3A40A25 | |
| Product type | Three-phase solid state relay | |
| Switching mode | Zero-cross switching | |
| Number of phases | 3-phase | |
| Rated operating current AC-51 | 25 A | |
| Rated operating current AC-53a | 5 A | |
| Operating voltage | 24–440 V AC | |
| Control voltage AC | 24–275 V AC | |
| Control voltage DC | 24–50 V DC | |
| Mounting type | Panel mounting | |
| Connection type | Screw terminals with captive clamp | |
| Protection rating | IP10 | |
| Built-in protection | Overvoltage protection |
Frequently Asked Questions
What is the Carlo Gavazzi RZ3A40A25 used for?
The Carlo Gavazzi RZ3A40A25 is a three-phase solid state relay used for reliable electronic switching of industrial AC loads in automation and control systems.
What load current can the RZ3A40A25 handle?
The relay supports a rated operating current of 25 A AC for AC-51 duty applications.
What voltage range does the solid state relay support?
The RZ3A40A25 operates with loads from 24–440 V AC and accepts control voltages of 24–275 V AC or 24–50 V DC.
What switching method does this relay use?
The RZ3A40A25 uses zero-cross switching to provide efficient and low-noise electronic switching.
Where is this solid state relay typically installed?
The relay is typically installed inside electrical control panels and industrial automation systems using panel mounting.
Trusted by Industrial Automation Professionals
Carlo Gavazzi RZ3A solid state relays are widely used in industrial automation applications to provide reliable, efficient and long-life electronic switching solutions.
