Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
RS1A23LA40 – SSR ZS 230V 40A 18-36 VAC LED
Carlo Gavazzi RS1A23LA40 solid state relay, a 40 A single-phase zero-cross switching relay with 18–36 V AC/DC control input designed for industrial AC load control applications.
£40.64
Why Choose the Carlo Gavazzi RS1A23LA40 Solid State Relay?
The Carlo Gavazzi RS1A23LA40 is a reliable single-phase solid state relay (SSR) designed for efficient switching of AC loads in industrial automation, heating control and electrical switching applications. As part of the proven Carlo Gavazzi RS1A solid state relay series, it provides zero-cross switching technology for dependable operation, reduced electrical noise and improved switching performance.
This panel-mounted solid state relay delivers fast, silent and wear-free electronic switching compared with traditional electromechanical relays. Its compact design, screw terminal connections and semiconductor-based output stage make it suitable for integration into industrial control panels, machinery and automation equipment.
With a rated load current of 40 A AC, an operating voltage range of 42–265 V AC and an 18–36 V AC/DC control input, the RS1A23LA40 is designed for reliable single-phase AC load switching in demanding industrial environments.
Key Advantages
- Reliable solid state relay designed for industrial switching applications.
- 40 A AC load current rating for higher-power switching requirements.
- Zero-cross switching technology reduces electrical noise and switching stress.
- 18–36 V AC/DC control input compatible with automation controllers and control systems.
- Compact panel mount design for straightforward control cabinet installation.
- Silent semiconductor switching with no mechanical contact wear.
Key Features
- Carlo Gavazzi RS1A solid state relay series.
- 40 A rated AC load current.
- 42–265 V AC operating voltage range.
- 18–36 V AC/DC control voltage range.
- Zero-cross output switching for AC loads.
- Single-phase switching configuration.
- 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 RS1A23LA40 provide dependable electronic switching for industrial loads by using semiconductor technology instead of mechanical contacts. This allows faster operation, silent switching and extended service life in automated systems.
The RS1A series is designed for industrial control applications where reliable AC load switching is required. Its integrated zero-cross switching capability helps minimise electrical interference and makes it suitable for machinery, process control and automation installations.
Typical Applications
- Industrial heating and temperature control systems.
- Automation control panels.
- Machine building and OEM equipment.
- Lighting and electrical load switching.
- Process control systems.
- Industrial equipment requiring reliable AC switching.
Technical Specifications
Tick the specs you need, then view products that match.
| Device Type | Solid State Relay | |
|---|---|---|
| Terminal Type | Screw | |
| Mounting Type | Panel | |
| Switching Current (A) | 40 A | |
| Coil / Supply Voltage | 24 V AC, 24 V DC | |
| Contacts | 1NO | |
| IP Rating | IP20 | |
| Manufacturer | Carlo Gavazzi | |
| Series | RS1A | |
| Model | RS1A23LA40 | |
| Product type | Solid state relay | |
| Switching mode | Zero cross | |
| Number of poles | 1 | |
| Number of phases | 1-phase | |
| Rated current AC-51 | 40 A | |
| Operating voltage | 42–265 V AC | |
| Control voltage | 18–36 V AC/DC | |
| Output type | Thyristor solid state switching | |
| Contact configuration | SPST-NO | |
| Protection rating | IP20 | |
| Mounting type | Panel mounting | |
| Terminal type | Screw connection with captive clamp | |
| Operating frequency | 45–65 Hz |
Frequently Asked Questions
What is the Carlo Gavazzi RS1A23LA40 used for?
The RS1A23LA40 is a solid state relay used for switching single-phase AC loads in industrial automation and control applications.
What load current can the RS1A23LA40 switch?
The relay is rated for a maximum operating current of 40 A AC for suitable AC-51 applications.
What control voltage does this solid state relay require?
The RS1A23LA40 operates with an 18–36 V AC/DC control input, making it suitable for a wide range of automation control systems.
What type of switching does the RS1A23LA40 provide?
The relay uses zero-cross switching to reduce electrical noise and switching stress when controlling AC loads.
How is the RS1A23LA40 installed?
The RS1A23LA40 is designed for panel mounting inside industrial control cabinets and electrical enclosures.
Trusted by Industrial Automation Engineers
Carlo Gavazzi solid state relays are widely used in industrial automation systems to provide reliable, long-life electronic switching for demanding control applications.
