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Magnetic Autofill Relay Microswitch

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Product details

Management number 248410633 Release Date 2026/09/03 List Price US$14.77 Model Number 248410633
Category

Magnetic Autofill Relay Microswitch

This microswitch senses the boiler float's magnet through the boiler wall and turns on as the water level drops, activating the fill solenoid. Rated 0.4A at 250V with a normally-open contact.

SPECIFICATIONS

  • Rating: 0.4A, 250V, normally open (NO) contact
  • Switch head: 65 x 20 x 9mm
  • Wire lead length: 500mm

COMPATIBILITY

  • Fits: Boiler autofill systems using a magnetic float and reed-style microswitch

INSTALLATION

Straightforward DIY swap for anyone comfortable with basic low-voltage electrical connections. See the manufacturer's spec sheet for reference.

PRO TIPS

  • If the boiler won't autofill (or overfills) but the float itself moves freely, this reed microswitch, not the float, is the more likely failure point, since it's a purely magnetic, contactless sensor that degrades over time.

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