Quantec PIR Power Interface c/w Isolating Keyswitch

  • Allows up to two QT638 PIR movement sensors to be connected to a Quantec addressable call system.
  • Connects to the slave input on a QT602 or QT609 Range Call Point.
  • Typically located outside a bedroom where, for example, two PIRs are being used to monitor a patient getting out of bed.
  • Includes an isolation keyswitch so staff entering the room can temporarily disable the PIRs from triggering a call.
  • Derives its power from the Quantec network (no need for a separate power supply unit)
  • A maximum of 16 QT645s can be connected to a Quantec system.
  • Mounts on a standard UK 25mm single gang flush or surface back box.


Technical Specifications
Quiescent current




Onboard 6.35mm Remote Jack Socket

Onboard Infrared Receiver

Product dimensions (mm)

Construction & finish

IP Rating


Operating conditions/temperature


QT645 PIR Power Interface Instructions – DNU6450000


EU Declaration of Conformity – Quantec Monitoring Points (DoC)


Dimensions & Mounting Information
Product dimensions: 87 W x 87 H x 24 D mm. Mounts on a 25mm UK single gang back box.
BIM/CAD Drawings

QT645 Flush mounted BIM (RFA)


QT645 Surface mounted BIM (RFA)