3x Magnetic Contact Sensor Side 64mm 20mm Brown NC Alarm Window Door Magnetic Detector

Model: ACTii AC3288

EAN: 6931240032886 SKU: 3288897654

• Set of 3 pieces: Economical solution for securing multiple access points.
• Large 20mm operating gap: Tolerates shifts and warping of window sashes.
• Ruthenium (Ru) contacts: Guarantee of longevity and electrical reliability.
• Brown colour: Ideal for dark window and door frames (wood, PVC).
• Solid ABS housing: High resistance to damage and environmental conditions.
• Full compatibility: Works with Satel, Bosch, Elmes, Ropam and other systems.
• Easy installation: All necessary mounting screws are included in the set.

Description

A set of three professional magnetic sensors (reed switches) in brown, designed for discreet and effective property protection. Thanks to their colour, these sensors blend perfectly with dark window joinery and doors made of wood or brown PVC, remaining almost invisible to outsiders.

Key advantages and benefits:

- High reliability: The use of ruthenium (Ru) contacts guarantees exceptional durability and resistance to oxidation and sticking, which translates into years of trouble-free operation in an alarm system.

- Large operating gap: The 20 mm distance allows for stable sensor operation even in the case of inaccurate window sash fitting or natural warping over time.

- Wide compatibility: The devices work seamlessly with alarm control panels from the most popular brands, such as Satel, Bosch, Elmes, Ropam or AVT, making them a universal choice for installers.

- Solid housing: Made of high-quality ABS plastic, it ensures resistance to mechanical damage and stability of parameters over a wide temperature range.

- Complete mounting kit: The package contains 3 sensors along with dedicated screws, which allows for immediate installation and securing of multiple entry points.

These sensors are an indispensable element of intrusion detection systems, protecting homes, offices or warehouses against unauthorised opening of doors and windows. Simple surface (side) mounting makes installation quick and efficient, without requiring specialised tools.

Specification

Quantity in set

3 pieces

Output type

Electrically NO / Alarm NC (2 wires)

Operating gap

20 mm

Mounting

Side (surface)

Detector type

2EOL/NC

Parametric resistance

2 x 1.1k Ohm

Maximum switching voltage

200 V

Maximum switching current

500 mA

Maximum continuous current

1.5 A (non-switching)

Rated power

10 VA

Contact material

Ru (Ruthenium) - ensures high wear resistance

Housing / Colour

ABS plastic / Brown

Operating temperature

-25°C to +85°C

Certificates

CE, RoHS

Contents

3x Magnetic Sensor (Reed Switch)

1x Set of mounting screws

Additional information

Operating principle: Why is the sensor electrically NO, but alarm 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 (the magnet is close), manufacturers call it NC.

From the point of view of pure electrical engineering, it is an NO circuit (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: 13 x 64 x 13 mm (D x W x H)

Packaging dimensions: 100 x 100 x 25 mm (D x W x H)

Product weight: 22 g

Weight with packaging: 30 g

Zum Download

• User Manual
• CE Declaration
• SAFETY COMPLIANCE