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.
RS1A48LA25 – SSR ZS 480V 25A 18-36 VAC LED
Carlo Gavazzi RS1A48LA25 solid state relay, a 25 A single pole zero-cross switching relay designed for industrial AC load control applications.
£41.76
Why Choose the Carlo Gavazzi RS1A48LA25 Solid State Relay?
The Carlo Gavazzi RS1A48LA25 is a reliable single-phase solid state relay (SSR) designed for efficient switching of AC loads in industrial automation, heating control and electrical control systems. As part of the Carlo Gavazzi RS1A series solid state relay range, it provides fast, silent and maintenance-free switching using zero-cross technology for improved load management and reduced electrical interference.
This panel-mounted solid state relay combines semiconductor switching technology with a compact industrial design, providing dependable operation in applications requiring frequent switching and long service life. The integrated zero-cross switching function helps minimise electrical noise and switching stress during operation.
With a rated current of 25 A AC, an operating voltage range of 42–530 V AC and an 18–36 V AC/DC control input, the RS1A48LA25 is suitable for controlling industrial AC loads including heating systems, process equipment and automated machinery.
Key Advantages
- Compact panel-mounted solid state relay for industrial switching applications.
- 25 A AC rated current for higher load switching requirements.
- Zero-cross switching technology reduces electrical interference and switching stress.
- 42–530 V AC operating voltage range for flexible industrial installations.
- 18–36 V AC/DC control voltage compatible with automation control systems.
- Silent electronic switching with no mechanical contact wear.
Key Features
- Carlo Gavazzi RS1A series solid state relay.
- 25 A AC-51 rated operational current.
- Single-pole panel mount design.
- Zero-cross output switching mode.
- 42–530 V AC operating voltage.
- 18–36 V AC/DC control input.
- Screw terminals with captive clamp power connection.
- Compatible with Carlo Gavazzi heatsink accessories.
Reliable Solid State Switching for Industrial Applications
Solid state relays such as the Carlo Gavazzi RS1A48LA25 provide electronic AC switching without mechanical contacts, delivering silent operation, extended service life and dependable performance in demanding industrial environments.
The RS1A series is designed for industrial automation engineers requiring reliable load switching. Its zero-cross switching operation, flexible control input and panel mounting format allow straightforward integration into modern electrical control systems.
Typical Applications
- Industrial heating control systems.
- Temperature regulation equipment.
- Automation control panels.
- Industrial machinery switching applications.
- Process control equipment.
- AC load switching systems.
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) | 25 A | |
| Coil / Supply Voltage | 24 V AC, 24 V DC | |
| Manufacturer | Carlo Gavazzi | |
| Series | RS1A Solid State Relays | |
| Model | RS1A48LA25 | |
| Product type | Solid state relay (SSR) | |
| Switching mode | Zero cross | |
| Number of poles | 1-pole | |
| Rated current | 25 A AC | |
| Operating voltage | 42–530 V AC | |
| Control voltage | 18–36 V AC/DC | |
| Mounting type | Panel mount | |
| Power connection | Screw with captive clamp | |
| Frequency range | 45–65 Hz | |
| Isolation voltage | ≥4000 V AC rms |
Frequently Asked Questions
What is the Carlo Gavazzi RS1A48LA25 used for?
The RS1A48LA25 is used for electronic switching of AC loads in industrial automation, heating and process control applications.
What current rating does this solid state relay support?
The relay supports a rated operational current of 25 A AC for AC-51 applications.
What voltage range can the RS1A48LA25 switch?
The RS1A48LA25 operates with AC loads from 42–530 V AC.
What control voltage is required?
The relay accepts an 18–36 V AC/DC control input.
What type of switching does this relay use?
The RS1A48LA25 uses zero-cross switching to reduce electrical noise and switching stress.
Trusted by Industrial Automation Professionals
Carlo Gavazzi RS1A solid state relays are widely used in industrial control systems where reliable, silent and long-life electronic switching is required.
