II – Indoor Controlled
CONTACT: 19mm diameter, 16.5mm deep (21mm diameter, 22.5mm deep with sheath)
MAGNET: 20mm diameter, 13mm deep
CONTACT: 22mm x 27mm x 2.5mm MAGNET: 22mm x 27mm x 2.2mm
4 Screw Single Reed Flush Contact +Tamper +1k/1k Resistors
A 4 screw flush contact designed to meet the requirements of Security Grade 2.
A microswitch provides detection of removal from the fitting recess.
This variant of the A451K1K is supplied with prefitted 1k/1k resistors suitable for most Honeywell/Ademco/Microtech security panels. Use of these resistors is optional.
Along with fitting screws, A451K1K is also supplied with a contact sheath – useful for installations where the fitting recesses have drilled a little wider than 20mm or are otherwise awkward.