Sick Magnetic Proximity Sensor IM18-08NNS-ZWA

Series#: Sick

Product Details

High-performance SICK IM18-08NNS-ZWA proximity sensor with M18 x 1 cylindrical thread design
8 mm non-flush sensing range at 600 Hz switching frequency for fast, reliable detection
NPN normally open (NO) output with DC 3-wire configuration for easy integration
Rugged IP67-rated brass housing with nickel-plated finish, resistant to shock and vibration
Wide 10–30 V DC supply voltage with built-in short-circuit, reverse polarity, and power-up pulse protection
Available in multiple variants: IM18-08NNS-ZWD, IM18-08NNS-ZC1, and IM18-08NNS-ZW1 for flexible connectivity
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Specification

The SICK IM18-08NNS-ZWA magnetic proximity sensor is engineered for precision industrial automation, offering an 8 mm sensing range in a compact M18 x 1 thread with non-flush mounting. This NPN normally open (NO) unit operates on a DC 3-wire system and delivers exceptional reliability across harsh environments, supported by IP67 ingress protection and robust nickel-plated brass construction. With a switching frequency of 600 Hz and a supply voltage range of 10–30 V DC, it ensures consistent performance in high-speed applications. The sensor family also includes the IM18-08NNS-ZWD, IM18-08NNS-ZC1, and IM18-08NNS-ZW1 variants, each tailored to specific connection requirements while maintaining the same core sensing capabilities. Built to withstand 30 g shock and 10–55 Hz vibration, it operates from –25 °C to +70 °C, making it a durable choice for factory floors and process control systems.

Parameter	Specification
Housing Design	Cylindrical thread design, Standard
Thread Size	M18 x 1
Diameter	Ø 18 mm
Sensing Range (Sn)	8 mm
Installation Type	Non-flush
Switching Frequency	600 Hz
Connection Type	Male connector M12, 4-pin
Switching Output	NPN
Output Function	Normally Open (NO)
Electrical Wiring	DC 3-wire
Enclosure Rating	IP67
Supply Voltage	10 V DC … 30 V DC
Ripple	≤ 10%
Voltage Drop	≤ 1 V
Current Consumption	20 mA
Time Delay Before Availability	≤ 100 ms
Hysteresis	2% … 10%
Reproducibility	≤ 2%
Temperature Drift (of Sr)	± 10%
EMC Compliance	According to EN 60947-5-2
Continuous Current (Ia)	≤ 400 mA
Short-Circuit Protection	✔
Reverse Polarity Protection	✔
Power-Up Pulse Protection	✔
Shock and Vibration Resistance	30 g, 11 ms / 10 … 55 Hz, 1 mm
Ambient Operating Temperature	–25 °C … +70 °C
Housing Material	Brass, Nickel-plated brass
Sensing Face Material	Plastic
Housing Length	64 mm
Thread Length	40 mm
Tightening Torque, Max.	30 Nm