Scantronic WDC02 | Wired Door Contact | Grade 2, White

FAQs

What is the difference between the WDC02 and wireless door contacts?

The WDC02 is a wired door contact that connects directly to the control panel via cable, eliminating the need for batteries and providing continuous operation without maintenance. Wireless door contacts like the DET-2R-DC offer easier installation without cabling but require periodic battery replacement. Wired contacts are generally more cost-effective for new installations or where cable runs are already in place, while wireless contacts are ideal for retrofit applications or difficult-to-wire locations.

What does Grade 2 certification mean?

Grade 2 certification to EN50131-2-6 means the WDC02 meets medium security requirements suitable for domestic and small commercial premises where intruders are expected to have limited knowledge of alarm systems and use basic tools. This certification is required for installations complying with PD6662:2017 standards, which is the UK’s code of practice for intruder alarm systems and is often required by insurance companies for commercial premises.

Can the WDC02 be used with any alarm panel?

The WDC02 is compatible with any alarm control panel that supports wired zone inputs with normally closed (NC) contact monitoring. While designed to work seamlessly with Scantronic control panels including the 80HE, 100WE, 200WE, and 400WE models, it will also function with control panels from other manufacturers. Ensure your control panel supports supervised zones to take full advantage of the WDC02’s tamper detection capabilities.

How is the WDC02 installed?

The WDC02 is surface-mounted using the included mounting hardware. The sensor unit is typically installed on the fixed door frame or window frame, while the magnet is mounted on the moving door or window panel. The sensor connects to the control panel via two-core cable. Correct alignment between the sensor and magnet is crucial, with the magnet positioned close to the sensor when the door or window is closed to ensure reliable operation.

What cable is required for installation?

The WDC02 requires two-core alarm cable (typically 6-core or 8-core cable is used to allow multiple devices on one cable run). The cable gauge depends on the distance from the control panel – for most domestic installations, 0.22mm² cable is suitable for runs up to 100 metres. For longer distances or commercial installations, use heavier gauge cable to prevent voltage drop. The cable should be suitable for alarm applications and installed in accordance with BS8243 wiring standards.

What is the maximum gap between the sensor and magnet?

While specific gap specifications are not provided in the manufacturer documentation, typical magnetic door contacts like the WDC02 operate reliably with gaps of 10-15mm between the sensor and magnet when the door is closed. The sensor and magnet should be aligned as closely as possible, with the magnet’s marked edge facing the sensor’s marked detection area. Larger gaps may result in false alarms or failure to detect door opening.

Is the WDC02 suitable for outdoor use?

The WDC02 is designed for indoor installation and is not suitable for fully exposed outdoor locations. However, it can be used in sheltered outdoor areas such as covered porches or within outbuildings, provided it is protected from direct weather exposure. For fully exposed outdoor locations, consider using weather-resistant or IP-rated door contacts specifically designed for outdoor applications.