Knight Fire & Security YA40 – Grade 3 Potted Flush Contact for Double Doors (with Resistors)

The Knight Fire & Security YA40 is a Grade 3 potted flush contact designed for double doors. Featuring a fully sealed 20mm body, installer-selectable resistors, and 1 metre of potted intruder cable, it ensures secure and reliable performance. Compatible with all major UK control panels, this EN50131-2-6 compliant contact is ideal for high-security installations.

Key Features:

  • Grade 3 Security Compliance – Certified to EN50131-2-6, making it suitable for high-risk applications.
  • Potted Flush Contact – 20mm fully sealed design for maximum durability and protection.
  • Double-Door Compatibility – Ideal for shared zones, double-door installations, or series wiring configurations.
  • Installer-Selectable Resistors – Compatible with all major UK control panels, including:
    • Honeywell, Ademco, Orisec, Scantronic, Texecom, Pyronix, HKC, Castle, Aritech, Gardtec, Guardall, Inner Range.
  • 1-Metre Potted Intruder Cable – Provides added protection against environmental damage.
  • Reliable Performance – 25mm operating gap for accurate and consistent detection.

Full Description

High-Security Flush Contact Suitable for Double Doors

The Knight Fire & Security YA40 is a high-security flush contact engineered for Grade 3 installations. Designed for double-door setups, this fully sealed 20mm contact ensures long-term reliability and enhanced durability in security applications.

With installer-selectable resistors, the YA40 is compatible with all major UK control panels, including Honeywell, Ademco, Orisec, Texecom, Pyronix, Aritech, and more. The 1-metre potted intruder cable provides enhanced resistance against environmental factors, making it suitable for demanding security installations.

It meets the BS EN50131-2-6 standard, ensuring it can be used in shared zones, wired-in-series configurations, or standalone installations. The 25mm operating gap allows for reliable detection while preventing false alarms.

Technical Specifications:

  • Grade: 3
  • Part Code: YA40
  • Material: ABS
  • Environmental Class: 3 (Indoor Use)
  • Tamper Protection: None (Sealed Unit)
  • Cable: 1 metre, Potted Intruder Cable
  • Operating Gap: 25mm
  • Selectable Resistors: Compatible with all major UK control panels
  • Alarm Resistor Values: 1k, 4k7, 6k8, 8k2
  • EOL Resistor Values: 1k, 2k2, 4k7, 8k2
  • Dimensions: 20mm fully sealed housing
  • See Full Data Sheet

Why Choose the Knight Fire & Security YA40?

The YA40 Flush Contact is a high-security, Grade 3 solution designed for double doors and shared-zone applications. With a fully sealed 20mm body, selectable resistors, and compatibility with leading control panels, it is a dependable choice for installers requiring superior protection.

Product Specifications

Brand

Knight Fire & Security

Grading and Compliance

Grade 3

Device Type

Flush Contact

SKU KFS-YA40

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