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Knight Fire YA403M Grade 3 Flush Contact 20mm Fully Sealed, Multiple Resistor 3m
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Knight Fire YA403M Grade 3 Flush Contact 20mm Fully Sealed, Multiple Resistor 3m

Rated 5/5 ⭐⭐⭐⭐⭐   1 reviews | 0 Questions
Knight Fire and Security logo Knight Fire and Security
  • Grade 3 Compliant
  • 8 Core, 5m Fly Lead
  • 25mm Operating Gap

The Knight Fire YA403M is a fully sealed Grade 3 flush contact with multiple resistors for alarm and EOL. It features an 8 Core, 3 metre Fly Lead. (Read more)

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 SPECIAL BUY - 8% OFF
£15.05
£12.54 Ex VAT
WAS £16.36
Save £1.31
10+ In stock
Delivery from £3.98
Order before 16:00 for delivery from Thursday 18th June
Product CodeKNI0025
ModelYA403M
More Information
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PRODUCT DETAILS

The Knight Fire YA403M is a flush contact with multiple resistors for alarm and EOL. It meets all of the necessary requirements for magnetic contacts permitting it to be used within Grade 3 installations, and comes with a 8 core, 3m fly lead.


Features:

  • Environmental Class 3
  • Double Door Contact
  • Operating Gap 25mm
  • The YA40 is a universal fully sealed Flush Contact
  • 3 metres of 8 core potted cable
  • It meets all of the necessary requirements for magnetic contacts permitting it to be used within Grade 3 installations
  • The contact has installer selectable End of Line (EOL) and alarm contact bypass resistors
  • Includes Resistors compatible with:
    • Honeywell, Ademco, Orisec, Scantronic, Menvier, Texecom, Pyronix, HKC, Castle, Aritech, Gardtec, Guardall and Inner Range Control Panels
  • Alarm Values:
    • 1k, 4k7, 6k8, 8k2
  • EOL Values:
    • 1kr, 2k2, 4k7,8k2
  • It may be fitted in shared zone / double doors / wired in series configurations
  • Manufactured to BS EN50131-2-6
SPECIFICATIONS


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Knight Fire and Security website
Knight Fire and Security support site

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REVIEWS

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YA40, YA403M, YA405m
⭐ ⭐ ⭐ ⭐ ⭐
The Knight Security YAx series is a potted circular flush mounting sensor. I like it because it's available with either 1m, 3m or 5m attached cable. I usually specify and fit these into uPVC or composite doors. Once the door frame is drilled with a 20mm spade bit the cable can be routed through the void between the frame and brickwork. The longer lengths are ideal to get the cable to junction box in a dry/warm area to prevent false alarms from any moisture ingress.
Author David18/08/2025      

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