The main advantage of the AC1700 model is an exceptionally large operating gap of up to 30 mm. This allows for stable operation even in the case of loosely fitted window or door sashes, eliminating the risk of false alarms caused by minor structural movements. The sensors are made of high-quality ABS plastic, which is characterised by high resistance to mechanical damage and parameter stability in a wide temperature range from -25°C to +85°C.
The use of ruthenium (Ru) as a contact material guarantees exceptional durability, reliability, and a long service life of the device, even with frequent opening and closing of monitored passages. The set of 3 pieces is an economical choice, allowing for the protection of multiple entry points within a single installation. Thanks to the two-wire connection line with a length of 25 cm, installation is quick and intuitive. The reed switches are fully compatible with the most popular alarm systems available on the market, such as Satel, Bosch, Elmes, Ropam, or AVT. By choosing this product, you gain the certainty of protection and the highest quality of workmanship, which will prove itself in every professional security system.
EAN: 6931240017005 SKU: 170011893
A set of three professional magnetic sensors (reed switches) designed for recessed mounting. This is an ideal solution for those who value aesthetics and discretion, as the sensors are almost invisible after installation, hidden inside the window frame or door jamb. The brown colour of the housing makes them blend perfectly with dark joinery, wooden windows, and wood-effect veneers.
The main advantage of the AC1700 model is an exceptionally large operating gap of up to 30 mm. This allows for stable operation even in the case of loosely fitted window or door sashes, eliminating the risk of false alarms caused by minor structural movements. The sensors are made of high-quality ABS plastic, which is characterised by high resistance to mechanical damage and parameter stability in a wide temperature range from -25°C to +85°C.
The use of ruthenium (Ru) as a contact material guarantees exceptional durability, reliability, and a long service life of the device, even with frequent opening and closing of monitored passages. The set of 3 pieces is an economical choice, allowing for the protection of multiple entry points within a single installation. Thanks to the two-wire connection line with a length of 25 cm, installation is quick and intuitive. The reed switches are fully compatible with the most popular alarm systems available on the market, such as Satel, Bosch, Elmes, Ropam, or AVT. By choosing this product, you gain the certainty of protection and the highest quality of workmanship, which will prove itself in every professional security system.
Device type
Magnetic reed switch sensor (set of 3 pieces)
Mounting
Recessed (hidden in the window frame or door jamb)
Operating gap
30 mm
Alarm output
NC (Normally Closed - with magnet nearby)
Sensor type
2EOL/NC (with built-in parametric resistors)
Parametric resistance
2 x 1.1k Ohm
Maximum switching voltage
200 V
Maximum switching current
500 mA
Maximum continuous current
1.5 A
Rated power
10 VA
Contact material
Ru (Ruthenium)
Housing and colour
ABS plastic / Brown
Operating temperature
from -25°C to +85°C
Connection
2 wires with a length of 25 cm
Certificates
CE, RoHS
Contents
3x Recessed magnetic sensor (contact part)
3x Recessed magnet
Additional information
Operating principle: Why is the sensor electrically NO, but alarm-wise NC?
The operation of the sensor is very simple: bringing the magnet closer (closing the window) closes the circuit, and moving the magnet away (opening the window) breaks the circuit.
In the alarm industry, this sensor is sold as NC (Normally Closed). Why is this?
In alarm systems, the "normal" (quiescent) state is a secured building – i.e., a closed window.
Since the circuit is closed and current flows when the window is closed (magnet is nearby), manufacturers call it NC.
From the point of view of pure electrical engineering, it is an NO system (because by default, lying on a table without a magnet, the sensor does not conduct current), however, alarm installers always look at the operating state with the window closed.
Dimensions, Weight
Product dimensions: 24 x 24 x 25 mm (D x W x H)
Packaging dimensions: 60 x 60 x 25 mm (D x W x H)
Product weight: 5 g
Weight with packaging: 13 g
Specific References