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RS1A23A4-25 – SSR ZS 230V 25A 400VAC LED
Carlo Gavazzi RS1A23A4-25 single-phase solid state relay with 400 V AC control input, zero-cross switching and 25 A AC load current rating for industrial automation applications.
Why Choose the Carlo Gavazzi RS1A23A4-25 Solid State Relay?
The Carlo Gavazzi RS1A23A4-25 is a high-performance single-phase solid state relay (SSR) designed for reliable AC load switching in industrial automation and control systems. As part of the Carlo Gavazzi RS1A solid state relay series, it provides zero-cross switching technology, long operational life and dependable semiconductor-based switching for industrial applications.
This solid state relay features a 400 V AC control input, a 42–440 V AC load voltage range and a 25 A rated operational current, making it suitable for industrial heating, resistive loads and automation equipment where reliable, maintenance-free switching is required.
With zero-cross switching, integrated LED indication, thyristor output technology and a robust panel-mount construction, the RS1A23A4-25 provides efficient AC switching performance while reducing electrical noise and eliminating mechanical wear associated with traditional relays.
Key Advantages
- Single-phase solid state relay designed for industrial AC load switching.
- 25 A rated operational current for reliable control of electrical loads.
- Zero-cross switching technology reduces electrical interference during operation.
- 400 V AC control voltage for integration with industrial control systems.
- Integrated LED indication for clear operating status visibility.
- Panel mounting design with screw terminals for secure electrical installation.
Key Features
- Carlo Gavazzi RS1A solid state relay series.
- Single-phase AC solid state switching.
- 25 A rated operational current.
- 42–440 V AC operational voltage range.
- 400 V AC control voltage.
- Zero voltage turn-on switching.
- LED status indication.
- Thyristor output technology.
- Panel mounting with screw terminals.
- Optically isolated semiconductor switching design.
Reliable AC Load Switching for Industrial Applications
Solid state relays such as the Carlo Gavazzi RS1A23A4-25 provide fast, silent and reliable switching for industrial electrical loads. Unlike mechanical relays, SSR technology uses semiconductor components to provide extended service life and reduced maintenance requirements.
The RS1A series is designed for automation engineers and control panel builders requiring dependable switching performance for heating systems, industrial machinery and resistive AC loads.
Typical Applications
- Industrial heating control systems.
- Temperature controllers and thermal equipment.
- Industrial automation panels.
- Resistive AC load switching.
- Machine control systems.
- Industrial electrical control applications.
Technical Specifications
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| Device Type | Solid State Relay | |
|---|---|---|
| Terminal Type | Screw | |
| Load Voltage | 42–440 V AC | |
| Mounting Type | Panel | |
| Switching Current (A) | 25 A | |
| Coil / Supply Voltage | 400 V AC | |
| Contacts | 1NO | |
| Manufacturer | Carlo Gavazzi | |
| Series | RS1A Solid State Relays | |
| Model | RS1A23A4-25 | |
| Product type | Solid state relay (SSR) | |
| Relay type | Single-phase AC solid state relay | |
| Contact configuration | SPST-NO | |
| Switching mode | Zero crossing | |
| Rated operational current | 25 A | |
| Operational voltage range | 42–440 V AC | |
| Control voltage | 400 V AC ±15% | |
| Output type | Thyristor | |
| Terminal type | Screw terminals | |
| Mounting type | Panel mount | |
| LED indication | Yes | |
| Frequency | 45–65 Hz | |
| Off-state leakage current | <3 mA | |
| Approvals | CE, UL, cUL, CSA |
Frequently Asked Questions
What is the Carlo Gavazzi RS1A23A4-25 used for?
The RS1A23A4-25 is a single-phase solid state relay used for reliable AC load switching in industrial automation and control applications.
What load current can this solid state relay handle?
The RS1A23A4-25 has a 25 A rated operational current for AC switching applications.
What control voltage does the relay require?
The RS1A23A4-25 operates with a 400 V AC control input.
What switching technology does this SSR use?
The relay uses zero-cross switching technology to provide reliable AC switching with reduced electrical interference.
How is the relay installed?
The RS1A23A4-25 is designed for panel mounting with screw terminal connections in industrial control assemblies.
Trusted by Industrial Automation Professionals
Carlo Gavazzi solid state relays are widely used in industrial automation and control systems where reliable, long-life AC switching performance is required.
