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.
£121.95
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.
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.
| 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 |
The RA2A48D40M is a two-pole solid state relay designed for switching AC inductive loads in industrial automation, machinery and control systems.
The relay is rated at 40 A AC per pole under AC-51 conditions and 15 A AC per pole under AC-53a conditions.
The RA2A48D40M operates with AC loads from 42–530 V AC and has a 1200 V peak blocking voltage.
The relay accepts a 4.5–32 V DC control voltage and provides independent control of its two switching poles.
Yes. The RA2A48D40M is specifically configured for inductive loads and uses zero-cross switching for controlled AC switching.
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.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...