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Silver rectangular solid-state relay module with metal housing and screw terminals, 25 by 62 by 45 mm

NALYD

NALYD Solid State Relay Module 40A 24-480V AC 32VDC Silver

SKU CH-P2XX-DEXD0

A 40 A solid-state relay switches 24-480 V AC loads with 32 V DC control, optical isolation and a snubber circuit

  • TypeStorage Sheds
  • Handles heavy loads with 40 A output current
  • Works across wide voltage range from 24 V to 480 V AC
  • Low control current of 5-20 mA eases driver requirements
  • Optical isolation protects control circuitry from load transients
  • Compact 25 x 62 x 45 mm size fits tight enclosures

Solid State Relay Module 40A

The NALYD solid-state relay module switches AC loads from 24 V to 480 V with a 32 V DC control signal. Optical isolation separates the input and output circuits for electrical safety. A snubber circuit helps the unit withstand high surge voltages during operation. It delivers up to 40 A continuous output current in a compact metal housing.

Makers needing fast silent switching

Builders who want a contactless relay for 3D printer heated beds or similar resistive loads will find the 5–20 mA control current and sub-10 ms switching suitable. The module is not intended for applications that require mechanical contact feedback or DC load switching beyond the specified range. Buyers needing integrated enclosures or DIN-rail mounting should consider other form factors.

Fits tight printer electronics bays

Measuring 25 × 62 × 45 mm the relay sits on a small PCB footprint inside a printer control box. The silver metal base aids heat dissipation without a separate heatsink in many typical installations. Optical isolation frees the low-voltage controller from ground-loop noise on the mains side. Ensure wiring and fusing match the 40 A rating and ambient temperatures between −30 °C and 70 °C.

Highlights

  • Handles heavy loads with 40 A output current
  • Works across wide voltage range from 24 V to 480 V AC
  • Low control current of 5-20 mA eases driver requirements
  • Optical isolation protects control circuitry from load transients
  • Compact 25 x 62 x 45 mm size fits tight enclosures

Specifications

TypeStorage Sheds

Questions about this item

What DC power supply voltage and current range must I already have to drive the 32 VDC control input?

A DC source between 24 V and 32 V capable of supplying 5 mA to 20 mA is required for the control terminals.

Will the 40 A AC output switch the same 24 V–480 V loads that my existing mechanical contactors handle?

Yes, the relay switches 24 V–480 V AC at up to 40 A with ≤1.6 V on-state drop and ≤5 mA leakage.

How can I confirm the relay is switching correctly after wiring it to my 3D printer heated bed?

Measure the AC load terminals — you should see ≤1.6 V drop when the control signal is applied and open-circuit when it is removed.

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