Description
SPECIAL ORDER ITEM – STANDARD DELIVERY CHARGES APPLY
This product is supplied on a special-order basis and dispatched directly from our supplier. Standard delivery charges apply at checkout. Free UK mainland delivery is available on qualifying orders over £200.
Please contact Spark Security Store before ordering to confirm availability and estimated delivery times.
Knight XE90A-1KR Grade 3 Mini Aluminium Surface Magnetic Contact
The Knight XE90A-1KR Grade 3 Mini Aluminium Surface Contact is a professional magnetic door contact designed for high-security intruder alarm installations requiring dependable door monitoring and magnetic interference detection.
Manufactured with a compact, durable aluminium housing, this surface-mounted contact provides a discreet and reliable solution for compatible intruder alarm installations.
Grade 3 Security Protection
Designed to comply with EN 50131-2-6 Grade 3, the XE90A-1KR incorporates magnetic bias technology designed to detect interference from external magnets.
This makes it suitable for professionally designed Grade 3 intruder alarm systems where enhanced security monitoring and protection against magnetic interference are required.
Integrated 1K/1K Resistors
The contact features factory-integrated resistors:
- 1KΩ alarm resistor
- 1KΩ end-of-line (EOL) resistor
These resistor values support compatible supervised alarm circuits, including suitable Honeywell Galaxy and Ademco control panels.
Always verify resistor compatibility with the alarm panel’s zone configuration before installation.
Compact and Durable Aluminium Construction
The robust aluminium housing measures just 40 × 14 × 9.7 mm, making the XE90A-1KR suitable for applications where a compact, surface-mounted magnetic contact is preferred.
Its pre-wired 1-metre, 6-core cable provides a convenient connection to compatible intruder alarm control equipment.
Key Features
- EN 50131-2-6 Grade 3 magnetic surface contact
- Magnetic interference detection
- Integrated 1K/1K alarm and EOL resistors
- Six-core pre-wired connection
- 1-metre potted cable
- Durable silver aluminium housing
- Compact surface-mounted design
- Single reed contact
- IP67 protection rating
- Designed for professional intruder alarm installations
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Knight Fire & Security |
| Model | XE90A-1KR / XE90A1KR |
| Product Type | Magnetic Surface Contact |
| Security Grade | Grade 3 |
| Standard | EN 50131-2-6 |
| Housing Material | Aluminium |
| Colour | Silver |
| Connection | 6-Core Cable |
| Cable Length | 1 Metre |
| Alarm Resistor | 1KΩ |
| EOL Resistor | 1KΩ |
| Operating Gap | 5–10 mm |
| Dimensions | 40 × 14 × 9.7 mm |
| IP Rating | IP67 |
| Detection | Magnetic Interference Detection |
| Mounting | Surface Mounted |
Important Installation Information
Not suitable for direct installation on steel doors or other ferromagnetic materials. These surfaces may interfere with magnetic operation and affect contact performance.
Always confirm compatibility with the intruder alarm control panel, verify the required resistor configuration and follow the manufacturer’s installation instructions.
Installation should be carried out by a competent security system installer.
Professional Intruder Alarm Equipment
At Spark Security Store, we supply professional security and electrical equipment to trade installers and the public throughout Great Britain.
Explore our range of magnetic door contacts, intruder alarm accessories, detection devices and professional security installation equipment.
Special Order & Delivery Information
Special Order Product
The Knight XE90A-1KR is supplied on a special-order basis and is not normally held in stock at Spark Security Store.
Direct Supplier Dispatch
Orders are fulfilled directly by our supplier and dispatched to the customer’s delivery address.
Standard UK Mainland Delivery
Standard delivery charges apply at checkout. Orders over £200 qualify for free standard UK mainland delivery, subject to our Delivery Policy.
Availability & Lead Times
As this product is specially ordered, availability and delivery times may vary depending on supplier stock and processing schedules.
Please contact Spark Security Store before placing an order to confirm current availability and estimated delivery times.
Returns & Cancellations
Special-order status does not affect applicable statutory consumer rights. Returns and cancellations are handled in accordance with our Returns Policy and relevant UK consumer protection legislation.
Spark Security Store – Professional Security & Electrical Products for Trade and Public.




