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Small black rectangular relay with four pins visible

Vszerda

Vszerda Relay HF105F-2-012D-1HS 12VDC 30A 240VAC 4-pin

SKU CH-21B5-EY5AX

A normally open relay switches 30 A at 240 VAC with a 12 VDC coil

  • 12 VDC coil enables low-voltage control
  • 30 A / 240 VAC rating switches heavy mains loads
  • Normally open 4-pin layout simplifies circuit design
  • HF105F series relay delivers dependable switching performance

12 VDC 30 A Relay Module

This Vszerda HF105F-2-012D-1HS relay switches mains loads up to 30 A at 240 VAC using a 12 VDC coil. The four-pin, normally open design suits hobbyists and technicians building custom control boards for lighting, heating or motor circuits.

Direct PCB Replacement

It replaces an identical four-pin relay on an existing board when the coil or contacts have failed. The jump is worth it only when the original part shares the same 12 VDC coil voltage, 30 A contact rating and pin layout.

How it compares

Measured against everything we stock in Tech Gadgets & Accessories, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 60% of the 5,998 comparable items (median $24.99).

Specifications

No published specifications for this item yet.

Questions about this item

What PCB hole spacing does the 4-pin HF105F relay need?

The HF105F-2-012D-1HS uses a standard 4-pin through-hole footprint; match the pin pitch on your board to the relay's 4-pin layout for a secure fit.

Which pins carry the 12 VDC coil versus the 30 A contacts during soldering?

Apply 12 VDC to the two coil pins to energise the relay; the remaining two pins switch the 30 A 240 VAC normally-open contacts — verify the pin-out diagram before soldering.

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