Carlo Gavazzi RP1B40D3 single-pole PCB-mount solid state relay with instant-on switching, 3 A AC-51 rating, 12–440 V AC operating voltage and 4–32 V DC control input.
SKU:RP1B40D3MPN:RP1B40D3
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List Price£21.93ex VAT
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Why Choose the Carlo Gavazzi RP1B40D3 Solid State Relay?
The Carlo Gavazzi RP1B40D3 is a compact single-pole PCB-mount solid state relay (SSR) designed for reliable switching of AC loads in industrial automation and control systems. As part of the established Carlo Gavazzi RP1B solid state relay series, it provides instant-on switching, a 4–32 V DC control input and semiconductor output switching in a compact PCB-mount package.
The relay uses solid state switching rather than mechanical contacts, providing quiet operation and eliminating mechanical contact wear. Its instant-on switching operation allows the output to respond directly to the applied control signal rather than waiting for an AC zero crossing, making it suitable for applications where rapid switching response is required.
With a rated operational current of 3 A AC-51, an operating voltage range of 12–440 V AC and a 4–32 V DC control input, the RP1B40D3 is suitable for compact industrial switching applications. The relay provides an 850 Vp blocking voltage and uses soldering pins for direct PCB integration.
Key Advantages
Compact single-pole PCB-mount solid state relay for AC load switching.
3 A AC-51 rated current for suitable industrial loads.
12–440 V AC operating voltage for a broad range of AC switching applications.
4–32 V DC control input suitable for PLCs and electronic control systems.
Instant-on switching provides rapid semiconductor activation from the control signal.
850 Vp blocking voltage provides high output voltage withstand capability.
PCB-mount construction enables direct integration into electronic control equipment.
Solid state construction eliminates mechanical contacts and associated contact wear.
Key Features
Carlo Gavazzi RP1B solid state relay series.
Single-pole PCB-mount construction.
3 A rated current at AC-51.
2 A rated current at AC-53a.
12–440 V AC operating voltage.
4–32 V DC control voltage.
Instant-on output switching.
850 Vp blocking voltage.
Minimum operational load current of 10 mA AC.
Off-state leakage current below 3 mA.
Surface-mount technology for compact construction.
Flexible encapsulation designed for extended service life.
Soldering-pin power connections for PCB mounting.
Reliable Instant-On Switching for Industrial Control
Solid state relays such as the Carlo Gavazzi RP1B40D3 use semiconductor technology instead of mechanical contacts to control AC loads. This provides silent operation and avoids mechanical contact wear, making the technology well suited to applications requiring dependable switching over repeated operating cycles.
The RP1B40D3 uses instant-on switching, allowing the output semiconductor to respond directly to the applied DC control signal rather than waiting for an AC zero crossing. Its 4–32 V DC control range provides compatibility with a variety of PLC and electronic control outputs, while the PCB-mount format allows integration into compact electronic assemblies.
Typical Applications
Industrial automation and machine control.
PLC-controlled AC load switching.
PCB-based electrical control systems.
Industrial heating and control equipment.
Packaging and production machinery.
Small AC actuators and suitable industrial loads.
Interface switching between DC control systems and AC loads.
Technical Specifications
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Terminal Type
PCB / pins
Switching Current (A)
3 A
Mounting Type
PCB
Manufacturer
Carlo Gavazzi
Series
RP1B
Model
RP1B40D3
Product type
PCB-mount solid state relay
Relay configuration
1-pole
Number of phases
1
Output switching mode
Instant on
Rated current AC-51
3 A
Rated current AC-53a
2 A
Operating voltage
12–440 V AC
Control voltage
4–32 V DC
Blocking voltage
850 Vp
Control input type
DC
Power connection
Soldering pins
Mounting type
PCB mounting
Coil / Supply Voltage
12 V DC, 24 V DC, 5 V DC
Frequently Asked Questions
What is the Carlo Gavazzi RP1B40D3 used for?
This solid state relay is used for reliable switching of suitable AC loads from a DC control signal in industrial automation, machine control and PCB-based control applications.
What current can the RP1B40D3 switch?
The relay has a rated operational current of 3 A at AC-51 and 2 A at AC-53a, subject to the applicable thermal and installation conditions.
What voltage does the RP1B40D3 switch?
The relay is designed for AC loads operating within a 12–440 V AC operating voltage range.
What control voltage does the relay require?
The RP1B40D3 accepts a 4–32 V DC control input, making it suitable for PLCs and other electronic DC control outputs.
Does the RP1B40D3 use zero-cross switching?
No. The RP1B40D3 uses instant-on switching, so the output responds directly to the applied control signal rather than waiting for an AC zero crossing.
Trusted by Industrial Automation Engineers
Carlo Gavazzi RP1B solid state relays provide compact and dependable semiconductor switching for industrial automation, machine control and PCB-based control systems where reliable AC load control and fast response are essential.
Terminal Type
PCB / pins
Switching Current (A)
3 A
Mounting Type
PCB
Manufacturer
Carlo Gavazzi
Series
RP1B
Model
RP1B40D3
Product type
PCB-mount solid state relay
Relay configuration
1-pole
Number of phases
1
Output switching mode
Instant on
Rated current AC-51
3 A
Rated current AC-53a
2 A
Operating voltage
12–440 V AC
Control voltage
4–32 V DC
Blocking voltage
850 Vp
Control input type
DC
Power connection
Soldering pins
Mounting type
PCB mounting
Coil / Supply Voltage
12 V DC, 24 V DC, 5 V DC
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