Surge protector for burglary alarm detector, APS-1Zo/1P

Surge protection of alarm detector used in electronic burglary security system, APS-1Zo/1P

The APS-1Zo/1P is a device protecting an alarm detector or alarm control panel zone against the effects of overvoltage and lightning. It is dedicated to alarm zones that do not use the doubling function; in the case of doubled zones it can only be used to protect the end detector.

It has two protective circuits with an efficiency up to 10kA (alarm + power supply) with a common ground, and the MOSFET technology used reduces the level of surge voltages reaching the protected device.

This surge arrester is universal, with the possibility of using in any alarm systems and with any detectors installed inside or outside (in additional housings). It is dedicated to protect detectors having outputs in the form of NO / NC contacts - it is not suitable for except addressble detectors. Other protective devices must be used for such devices.

Miniature dimensions allow to hide the surge protector in small hermetic enclosures near the protected alarm detectors, and removable screw connections facilitate installation and servicing.

To ensure complete protection of the alarm circuit, two identical APS-1Zo/1P models can be used on both ends of the cable or used in conjunction with multi-channel APS series arresters.



Surge protection of alarm detectors

Surge protection of one alarm zone


Surge protection of alarm system

Complete surge protection of alarm system


Protection channels 2
Input / Output connection Removable screw terminals
Rated Voltage DC (line-ground) UN 90V DC
Maximum Voltage (line-ground) UC 110V DC
Protection level 1kV/μs (line-ground) UP 600V
Surge current (8/20µs, line-ground ) Iimp 10kA
Rated Voltage DC (line-line) UN 13.8V DC
Maximum Voltage (line-line) UC 15V DC
Protection level 1kV/μs (line-line) UP 22V (with MOSFET fuse)
Surge current (8/20µs, line-line) Iimp 2kA (with MOSFET fuse)
Decoupling element MOSFET fuse
Serial resistance 6Ω / line
Rated current IN 100mA / line
Dimensions 74 x 32 x 25 (mm)
Inside Indoor/ Outdor in additional housing
Mounting Standalone
Operating temperature -30ºC~60ºC
Housing tightness IP20