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.
RM1B40D75 – SSR IO 400V 75A 4-32 VDC LED
Carlo Gavazzi RM1B40D75 solid state relay, a 75 A single phase AC switching relay with 4–32 V DC control input for industrial automation and AC load control applications.
£65.63
Why Choose the Carlo Gavazzi RM1B40D75 Solid State Relay?
The Carlo Gavazzi RM1B40D75 is a powerful and reliable single-phase solid state relay (SSR) designed for high-performance AC load switching in industrial automation, heating control and power switching applications. As part of the trusted Carlo Gavazzi RM1B solid state relay series, it provides instant-on switching, semiconductor reliability and long operational life for demanding industrial environments.
This panel mount SSR uses solid state technology to provide fast, silent and wear-free switching compared with traditional electromechanical relays. The RM1B series is designed for applications requiring frequent switching cycles, dependable operation and simple integration into industrial control panels.
With a rated current of 75 A AC, an operating voltage range of 42–440 V AC and a 4–32 V DC control input, the RM1B40D75 is suitable for industrial heating equipment, machinery and automation systems requiring reliable AC power control.
Key Advantages
- High-performance single-phase solid state relay for industrial switching applications.
- 75 A AC rated current for demanding load control requirements.
- Instant-on switching for rapid response and efficient control.
- 4–32 V DC control input compatible with PLCs and automation systems.
- Built-in overvoltage protection for improved system reliability.
- Panel mount design for easy installation in electrical control cabinets.
Key Features
- Carlo Gavazzi RM1B solid state relay series.
- 1-pole panel mount SSR design.
- 75 A rated current (AC-51).
- 20 A rated current (AC-53a).
- 42–440 V AC operating voltage range.
- 4–32 V DC control voltage range.
- Instant-on output switching mode.
- Screw power terminals with captive clamp connection.
Reliable AC Load Switching for Industrial Automation
Solid state relays such as the Carlo Gavazzi RM1B40D75 provide efficient electronic switching for industrial loads by replacing mechanical contacts with semiconductor technology. This enables silent operation, reduced maintenance and dependable performance in systems requiring frequent switching cycles.
The RM1B series is designed for industrial automation systems, control panels and process equipment where reliable AC power switching and long service life are essential.
Typical Applications
- Industrial heating control systems.
- Ovens, furnaces and temperature regulation equipment.
- Packaging and production machinery.
- Industrial automation panels.
- Process control systems.
- High-power AC load switching applications.
Technical Specifications
Tick the specs you need, then view products that match.
| Device Type | Solid State Relay | |
|---|---|---|
| Terminal Type | Screw | |
| Switching Current (A) | 75 A | |
| Mounting Type | Panel | |
| Coil / Supply Voltage | 12 V DC, 24 V DC, 5 V DC | |
| Manufacturer | Carlo Gavazzi | |
| Series | RM1B | |
| Model | RM1B40D75 | |
| Product type | Solid state relay (SSR) | |
| Number of poles | 1 | |
| Number of phases | 1 | |
| Switching mode | Instant-on | |
| Rated current AC-51 | 75 A | |
| Rated current AC-53a | 20 A | |
| Operating voltage | 42–440 V AC | |
| Peak blocking voltage | 800 V | |
| Control voltage | 4–32 V DC | |
| Output switching type | AC switching | |
| Mounting type | Panel mounting | |
| Power connection | Screw terminal with captive clamp | |
| Protection | Built-in overvoltage protection |
Frequently Asked Questions
What is the Carlo Gavazzi RM1B40D75 used for?
The RM1B40D75 is a solid state relay designed for controlling AC electrical loads in industrial automation, heating and machinery applications.
What current rating does the RM1B40D75 support?
The relay supports a rated current of 75 A AC-51 when installed with suitable thermal management.
What voltage does the Carlo Gavazzi RM1B40D75 switch?
The RM1B40D75 operates with an AC load voltage range of 42–440 V AC.
What control signal is required?
The relay is controlled using a 4–32 V DC input signal, making it suitable for PLC and automation control systems.
How is the RM1B40D75 mounted?
The RM1B40D75 is designed for panel mounting and should be installed with appropriate heat dissipation for high-current applications.
Trusted for Industrial Switching Applications
Carlo Gavazzi RM1B solid state relays are widely used by automation engineers and industrial manufacturers requiring reliable, high-cycle AC switching performance and long operational life.
