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RS1A48LA40 – SSR ZS 480V 40A 18-36 VAC LED
Carlo Gavazzi RS1A48LA40 solid state relay, a 40 A single pole zero-cross switching relay designed for industrial AC load control applications.
£44.74
Why Choose the Carlo Gavazzi RS1A48LA40 Solid State Relay?
The Carlo Gavazzi RS1A48LA40 is a high-performance single-phase solid state relay (SSR) designed for reliable electronic switching of AC loads in industrial automation, heating control and process 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 control and reduced electrical interference.
This panel-mounted solid state relay uses semiconductor switching technology to provide dependable operation in applications requiring frequent switching and long service life. The zero-cross switching function helps reduce electrical noise and switching stress, making it suitable for demanding industrial environments.
With a rated current of 40 A AC, a 42–530 V AC operating voltage range and an 18–36 V AC/DC control input, the RS1A48LA40 is designed for controlling higher-power AC loads in industrial machinery, heating equipment and automated control systems.
Key Advantages
- High-capacity panel-mounted solid state relay for industrial switching applications.
- 40 A AC rated current for demanding AC load control 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.
- 40 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.
- Integrated snubber network for higher current models.
Reliable Solid State Switching for Industrial Applications
Solid state relays such as the Carlo Gavazzi RS1A48LA40 provide electronic AC switching without mechanical contacts, delivering silent operation, extended service life and reliable performance in industrial control applications.
The RS1A series is designed for automation engineers requiring dependable load switching with flexible control options. Its zero-cross switching operation and compact panel mounting format enable 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.
- High-power AC load switching systems.
Technical Specifications
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| Device Type | Solid State Relay | |
|---|---|---|
| Terminal Type | Screw | |
| Switching Current (A) | 40 A | |
| Mounting Type | Panel | |
| Coil / Supply Voltage | 24 V AC, 24 V DC | |
| Manufacturer | Carlo Gavazzi | |
| Series | RS1A Solid State Relays | |
| Model | RS1A48LA40 | |
| Product type | Solid state relay (SSR) | |
| Switching mode | Zero cross | |
| Number of poles | 1-pole | |
| Rated current | 40 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 | |
| Blocking voltage | 1200 Vp | |
| Isolation voltage | ≥4000 V AC rms |
Frequently Asked Questions
What is the Carlo Gavazzi RS1A48LA40 used for?
The RS1A48LA40 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 40 A AC for AC-51 applications.
What voltage range can the RS1A48LA40 switch?
The RS1A48LA40 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 RS1A48LA40 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.
