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.
RA1250H06NCS – SSR SENSE ZS 120V 50A,NPN,NC
Carlo Gavazzi RA1250H06NCS solid state relay, a 50 A system monitoring relay designed for reliable AC load switching and fault detection in industrial automation systems.
Why Choose the Carlo Gavazzi RA1250H06NCS Solid State Relay?
The Carlo Gavazzi RA1250H06NCS is a high-performance single-phase system monitoring solid state relay (SSR) designed for reliable AC load switching, fault detection and enhanced operational safety in industrial automation and control applications. As part of the advanced Carlo Gavazzi RA Sense solid state relay series, it combines zero-cross switching technology with integrated monitoring functions and a normally closed NPN alarm output for dependable industrial performance.
This solid state relay provides efficient semiconductor switching while monitoring important operating conditions including line voltage, load current and correct SSR operation. The integrated sensing capability helps identify circuit failures quickly, making it suitable for applications where continuous process reliability and immediate fault detection are required.
With a rated operational current of 50 A AC and an operating voltage range of 60–140 V AC, the RA1250H06NCS is designed for industrial heating, process control and automation systems. Its compact panel-mount format allows straightforward integration into electrical control cabinets.
Key Advantages
- Compact system monitoring solid state relay designed for industrial applications.
- 50 A AC rated current capability for reliable high-current load switching.
- 60–140 V AC operating voltage range suitable for industrial AC systems.
- Integrated line, load and SSR function monitoring.
- Zero-cross switching reduces electrical noise and improves switching performance.
- Normally closed NPN alarm output provides reliable fault indication.
Key Features
- Carlo Gavazzi RA Sense solid state relay series.
- 50 A rated operational current.
- 60–140 V AC operational voltage range.
- Zero voltage turn-on switching technology.
- Integrated monitoring of line voltage, load current and SSR operation.
- NPN normally closed alarm output.
- LED indication for alarm and supply status.
- Panel mounting design with screw terminal connections.
Reliable Switching and System Monitoring for Industrial Automation
Solid state relays such as the Carlo Gavazzi RA1250H06NCS provide fast, silent and wear-free electronic switching compared with traditional electromechanical relays. The zero-cross switching design helps reduce electrical interference while extending operational life in industrial equipment.
The RA Sense series is designed for systems where early fault detection is essential. Its integrated monitoring functions allow engineers to identify line, load and switching faults quickly, helping maintain reliable production processes and automated machinery operation.
Typical Applications
- Industrial heating and temperature control systems.
- Process automation equipment.
- Industrial machinery control panels.
- Ovens, heaters and thermal processing systems.
- Production and packaging machinery.
- OEM automation and electrical control systems.
Technical Specifications
Tick the specs you need, then view products that match.
| Device Type | Solid State Relay | |
|---|---|---|
| Mounting Type | Panel | |
| Switching Current (A) | 50 A | |
| Coil / Supply Voltage | 12 V DC, 24 V DC | |
| Manufacturer | Carlo Gavazzi | |
| Series | RA Sense Solid State Relays | |
| Model | RA1250H06NCS | |
| Product type | System monitoring solid state relay | |
| Rated operational current | 50 A AC | |
| Operating voltage | 60–140 V AC | |
| Blocking voltage | 650 V peak | |
| Switching mode | Zero crossing | |
| Control voltage | 7–32 V DC | |
| External supply voltage | 20–32 V DC | |
| Alarm output | NPN normally closed | |
| Operating frequency | 45–65 Hz | |
| Operating temperature | -20 °C to +70 °C | |
| Mounting type | Panel mounting | |
| Poles | 1-pole | |
| Dimensions (W × H × D) | approx. 44.5 × 29 × 57.8 mm | |
| Weight | approx. 120 g |
Frequently Asked Questions
What is the Carlo Gavazzi RA1250H06NCS used for?
This solid state relay is used for AC load switching with integrated system monitoring in industrial automation and process control applications.
What current rating does this solid state relay support?
The RA1250H06NCS supports a rated operational current of 50 A AC.
What voltage range does the relay operate with?
The relay operates with an AC voltage range of 60–140 V AC.
What monitoring functions are included?
The relay monitors line voltage, load current and SSR operation, providing alarm indication when a fault condition is detected.
What type of alarm output does this relay provide?
The RA1250H06NCS provides a normally closed NPN alarm output for system fault indication.
Trusted by Industrial Automation Engineers Worldwide
Carlo Gavazzi RA Sense solid state relays are used by automation professionals to deliver reliable switching, integrated fault monitoring and dependable performance in modern industrial systems.
