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RA2A48D40M – SSR 2 POLE ZS 480V 40A IND.
Carlo Gavazzi RA2A48D40M two-pole solid state relay for inductive AC loads, rated at 40 A AC per pole with 42–530 V AC operation, 4.5–32 V DC control and zero-cross switching.
£103.66
Why Choose the Carlo Gavazzi RA2A48D40M Solid State Relay?
The Carlo Gavazzi RA2A48D40M is a compact two-pole solid state relay designed for reliable switching of AC resistive and inductive loads in industrial automation and control systems. As part of the established Carlo Gavazzi RA2A series, the RA2A48D40M provides zero-cross switching, two independently controlled poles and a control input range of 4.5–32 V DC in a compact panel-mount package.
The RA2A48D40M is specifically designed for inductive loads, distinguishing it from standard RA2A variants intended for resistive loads. Its zero-cross switching operation helps reduce switching transients, while the two independently controlled poles allow separate AC circuits to be switched from a common solid state relay assembly.
With a rated operational current of 40 A AC per pole under AC-51 conditions and an operating voltage range of 42–530 V AC, the RA2A48D40M is suitable for demanding industrial switching applications. The relay uses 6.35 mm FASTON quick-connect terminals for straightforward installation and provides optical isolation between the DC control circuit and AC output.
Key Advantages
- Compact two-pole solid state relay for industrial automation.
- 40 A AC rated current per pole under AC-51 operating conditions.
- 42–530 V AC operating voltage for versatile industrial load switching.
- Designed for inductive AC loads such as motors and similar equipment.
- Zero-cross switching helps reduce switching transients and electrical interference.
- 4.5–32 V DC control input suitable for PLCs and industrial control systems.
Key Features
- Carlo Gavazzi RA2A series solid state relay.
- 2-pole switching with independently controlled poles.
- 40 A AC rated operational current per pole under AC-51 conditions.
- 15 A AC rated current per pole under AC-53a conditions.
- 42–530 V AC operating voltage.
- 1200 V peak blocking voltage.
- 4.5–32 V DC control voltage.
- Zero-cross switching.
- Optimised for inductive loads.
- 6.35 mm FASTON quick-connect terminals.
- Dual green LED indicators for control status.
- Optically isolated control and output circuits.
Reliable Solid State Switching for Industrial Automation
Solid state relays such as the Carlo Gavazzi RA2A48D40M provide electronic AC switching without the mechanical contacts used in conventional electromechanical relays. This makes them well suited to automated equipment where frequent switching, compact installation and long service life are important.
The RA2A48D40M is configured for inductive loads and uses zero-cross switching to switch the AC output close to the supply waveform's zero crossing. Its two independently controlled poles allow separate circuits to be operated from one compact relay, while the DC control input can be driven by common industrial automation equipment.
Typical Applications
- Industrial automation and control panels.
- Inductive AC load switching.
- Motor and actuator control applications.
- Industrial machinery and production equipment.
- PLC-controlled AC switching systems.
- Heating, process and industrial control equipment.
Technical Specifications
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| Device Type | Solid State Relay | |
|---|---|---|
| Terminal Type | Faston / flat-pin | |
| Switching Current (A) | 40 A | |
| Mounting Type | Panel | |
| Coil / Supply Voltage | 12 V DC, 24 V DC, 5 V DC | |
| Manufacturer | Carlo Gavazzi | |
| Series | RA2A | |
| Model | RA2A48D40M | |
| Product type | Two-pole solid state relay | |
| Switching configuration | 2-pole / DPST | |
| Output switching mode | Zero cross | |
| Load type | Inductive AC loads | |
| Rated operational current AC-51 | 40 A AC per pole | |
| Rated operational current AC-53a | 15 A AC per pole | |
| Operating voltage | 42–530 V AC | |
| Blocking voltage | 1200 V peak | |
| Control voltage | 4.5–32 V DC | |
| Maximum control input current | 10 mA per pole | |
| Minimum operational current | 250 mA RMS | |
| Non-repetitive surge current | 600 A | |
| Off-state leakage current | <3 mA RMS | |
| Power factor | ≥0.50 | |
| Power connection | 6.35 mm FASTON terminals | |
| Isolation voltage | 4000 V AC | |
| Operating temperature | −20 to +70 °C | |
| Mounting type | Panel / chassis mounting | |
| Dimensions (H × W × D) | approx. 57.8 × 44.5 × 23.3 mm | |
| Approvals / marks | CE, cURus, EAC and UKCA |
Frequently Asked Questions
What is the Carlo Gavazzi RA2A48D40M used for?
The RA2A48D40M is a two-pole solid state relay designed for switching AC inductive loads in industrial automation, machinery and control systems.
What current can the RA2A48D40M switch?
The relay is rated at 40 A AC per pole under AC-51 conditions and 15 A AC per pole under AC-53a conditions.
What voltage can the RA2A48D40M switch?
The RA2A48D40M operates with AC loads from 42–530 V AC and has a 1200 V peak blocking voltage.
What control voltage does the RA2A48D40M require?
The relay accepts a 4.5–32 V DC control voltage and provides independent control of its two switching poles.
Is the RA2A48D40M suitable for inductive loads?
Yes. The RA2A48D40M is specifically configured for inductive loads and uses zero-cross switching for controlled AC switching.
Trusted for Industrial Automation and Control
Carlo Gavazzi RA2A solid state relays provide compact, reliable AC switching with independently controlled poles, zero-cross technology and high electrical isolation for demanding industrial automation applications.
