NJ40+U1+A2 Sn 40mm PNP Inductive Proximity Sensor SY33

Description:
The NJ40+U1+A2 is a high-performance inductive proximity sensor designed for long-distance metal detection with a rated sensing range of 40 mm. Featuring a non-flush installation design, complementary PNP output, and wide operating voltage range of 10–60 VDC, it provides exceptional flexibility for industrial automation systems. The sensor offers stable detection performance with reduced sensitivity ratios for aluminum, copper, and stainless steel targets. Engineered with reverse polarity and pulsing short-circuit protection, the NJ40+U1+A2 is ideal for heavy-duty machinery, conveyor systems, material handling, and applications requiring extended sensing distances and reliable switching feedback.

Feature:
Switching function: Complementary (Light ON / Dark ON)
Output type: PNP, 4-wire
Rated operating distance Sn: 40 mm
Assured operating distance Sa: 0 … 32.4 mm
Installation type: Non-flush
Reduction factor (Aluminum): rAl = 0.5
Reduction factor (Copper): rCu = 0.45
Reduction factor (Stainless Steel 304): r304 = 0.8
Operating voltage: 10 … 60 VDC
Switching frequency: 0 … 100 Hz
Hysteresis: 1 … 10 % (typ. 5 %)
Voltage drop Ud: ≤ 2.8 V
Operating current IL: 0 … 200 mA
Reverse polarity protection: Yes
Short-circuit protection: Pulsing type
Output polarity: DC
Application: Long-distance metal detection, automation systems, conveyors, machine tools, industrial machinery