Pepperl+Fuchs NJ4-12GM40-E2 Inductive Proximity Sensor

USD 61.20

Non-flush M12 PNP NO inductive sensor with 4mm rated operating distance, 10-60V DC, 2000Hz switching, IP67, and stainless steel housing.

SKU PEPPERL-FUCHS-NJ4-12GM40-E2 Category
Top Brands > PEPPERL+FUCHS > PEPPERL+FUCHS Proximity Sensor

Pepperl+Fuchs NJ4-12GM40-E2 Inductive Proximity Sensor

Model Identifier NJ4-12GM40-E2
Official Part Number NJ4-12GM40-E2
GTIN Standard NA

Technical Overview

Non-flush M12 PNP NO inductive sensor with 4mm rated operating distance, 10-60V DC, 2000Hz switching, IP67, and stainless steel housing.

Key Features

  • M12 cylindrical form factor for easy integration.
  • PNP, Normally Open (NO) output type.
  • Non-flush installation with 4 mm rated operating distance.
  • Wide operating voltage range: 10-60 V DC.
  • High switching frequency up to 2000 Hz.
  • Durable stainless steel (1.4305 / AISI 303) housing and PBT sensing face.
  • IP67 degree of protection for demanding environments.
  • Integrated yellow LED switching state indicator.
  • Pulsing short-circuit and reverse polarity protection.
  • 2-meter PUR connection cable with wire end ferrules.

Robust stainless steel housing with IP67 protection and wide 10-60V DC operating voltage for reliable performance in harsh industrial environments.

Technical Specification Matrix

ParameterValue
Switching functionNormally open (NO)
Output typePNP
Rated operating distance Sn4 mm
Installationnon-flush
Output polarityDC
Assured operating distance Sa0 ... 3.24 mm
Actual operating distance Sr3.6 ... 4.4 mm typ.
Reduction factor rAl0.37
Reduction factor rCu0.36
Reduction factor r3040.74
Nominal ratings Output type3-wire
Operating voltage UB10 ... 60 V
Switching frequency f0 ... 2000 Hz
Hysteresis H1 ... 10 % typ. 3 %
Reverse polarity protectionreverse polarity protected
Short-circuit protectionpulsing
Voltage drop Ud< 3 V
Voltage drop IL = 100 mA, switching element on Ud1.2 ... 2.5 V
Operating current IL0 ... 200 mA
Off-state current Ir<= 0.5 mA
No-load supply current Io<= 9 mA
Time delay before availability tv< 20 ms
Switching state indicatorLED, yellow
MTTFd750 a
Mission Time (TM)20 a
Diagnostic Coverage (DC)0 %
Standard conformityEN IEC 60947-5-2
UL approvalcULus Listed
Load TypeGeneral Purpose
CircuitryClass 2 Power Source
Enclosure Type RatingType 1
Supply/Switching Voltage60 V DC
Output Switching Current200 mA
CCC approvalCertified by China Compulsory Certification (CCC)
Ambient temperature-25 ... 70 °C (-13 ... 158 °F)
Storage temperature-40 ... 85 °C (-40 ... 185 °F)
Connection typecable
Housing materialStainless steel 1.4305 / AISI 303
Sensing facePBT
Degree of protectionIP67
Cable Wire end ferrulesyes
Cable diameter4.8 mm ± 0.2 mm
Cable Bending radius> 10 x cable diameter
Cable MaterialPUR
Cable Colorblack
Number of cores3
Core cross section0.34 mm²
Cable Length2 m
Dimensions Length40 mm
Dimensions Diameter12 mm
Scope of delivery2 self locking nuts in scope of delivery
Physical Weight (kg)0
Dimensions L x W x H (cm)4 x 1.2 x 1.2

Industrial Applications

1. Automated Part Detection in Machine Tools

The sensor's 4mm non-flush detection range and high 2000 Hz switching frequency are ideal for rapidly detecting metal workpieces or tooling in CNC machines and automated production lines. Its M12 form factor allows for compact integration.

Problem Solved

Ensures accurate and timely detection of components, preventing collisions and optimizing cycle times in high-speed manufacturing processes.

CNC machiningworkpiece detectionhigh-speed automationpart presencetool position

2. Material Handling and Conveyor System Monitoring

With an IP67 rating and a robust stainless steel housing, this inductive sensor is well-suited for reliable object detection on conveyor belts, sorting systems, and material handling equipment, even in environments exposed to dust or occasional splashes. The 10-60V operating range offers flexibility.

Problem Solved

Provides dependable proximity sensing for package alignment, jam detection, and counting of metallic items on conveyors, reducing downtime and improving throughput.

Conveyor beltpackage detectionmaterial flow controlsorting systemslogistics automation

3. Position Sensing in Hydraulic/Pneumatic Actuators

The compact M12 design and 40mm length allow for integration into hydraulic or pneumatic cylinders for end-of-stroke position sensing. Its robust construction, IP67 rating, and wide 10-60V DC operating voltage ensure reliable operation in applications with fluctuating power or potential mechanical stress.

Problem Solved

Precisely identifies the fully extended or retracted position of cylinder rods, enabling accurate control and sequencing of automated movements in machinery.

Cylinder positionend-of-stroke detectionactuator feedbackhydraulic systemspneumatic control
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