The NJ2-12GM50-WS is an inductive sensor designed for non-contact detection of metal objects within a range of up to 2 mm. It operates with an AC voltage and features a normally open (NO) switching element function. The sensor is designed for flush mounting and has an assured operating distance of 0 to 1.62 mm.
The device has a rated operating distance of 2 mm. The reduction factors for aluminum, copper, and stainless steel (304) are 0.1, 0.1, and 0.6 respectively. The sensor operates within an input voltage range of 20 to 253 V AC and has a switching frequency of 0 to 20 Hz. It is tolerant to reverse polarity.
The voltage drop is typically 4 V at 15 to 200 mA, and typically 6.5 V at 5 mA. The momentary current can reach 0 to 1200 mA (for 20 ms, 0.1 Hz), while the operating current is between 5 and 200 mA. The off-state current is typically 0.7 mA. A yellow LED serves as the switching state indicator.
The sensor is UL approved (cULus Listed, General Purpose) and CSA approved (cCSAus Listed, General Purpose). It also holds CCC approval, certified by China Compulsory Certification (CCC).
The operating ambient temperature range is -25 to 70 °C (-13 to 158 °F). The connection type is a 2-meter PVC cable with a core cross-section of 0.34 mm². The housing is made of Stainless steel 1.4305 / AISI 303, with a PBT sensing face. The housing diameter is 12 mm, and the degree of protection is IP67.
Note: 1) In the temperature range below 0 °C, the permissible operating voltage Ub is 80 to 253 V. A safety fuse less than or equal to 2 A (quick-blow) according to IEC 60127-2 Sheet 1 is required. It is recommended to check the device’s functionality after a short circuit.
General information regarding the scope of delivery indicates that 2 self-locking nuts are included.
Series: Cylindrical type, Housing diameter: 12 mm
Housing material: Stainless steel 1.4305 / AISI 303
Rated operating distance: 2 mm, Connection type: cable PVC , 2 m
Output type: 2-wire, Installation: flush
Type of voltage: AC
| General specifications | ||
| Switching element function | ACNO | |
| Rated operating distance | 2 mm | |
| Installation | flush | |
| Output polarity | AC | |
| Assured operating distance | 0 … 1.62 mm | |
| Reduction factor rAl | 0.1 | |
| Reduction factor rCu | 0.1 | |
| Reduction factor r304 | 0.6 | |
| Nominal ratings | ||
| Operating voltage | 20 … 253 V | |
| Switching frequency | 0 … 20 Hz | |
| Reverse polarity protection | reverse polarity tolerant | |
| Voltage drop | typ. 4 V at 15 … 200 mA typ. 6.5 V at 5 mA | |
| Momentary current (20 ms, 0.1 Hz) | 0 … 1200 mA | |
| Operating current | 5 … 200 mA | |
| Off-state current | typ. 0.7 mA | |
| Switching state indicator | LED, yellow | |
| Approvals and certificates | ||
| UL approval | cULus Listed, General Purpose | |
| CSA approval | cCSAus Listed, General Purpose | |
| CCC approval | Certified by China Compulsory Certification (CCC) | |
| Ambient conditions | ||
| Ambient temperature | -25 … 70 °C (-13 … 158 °F) | |
| Mechanical specifications | ||
| Connection type | cable PVC , 2 m | |
| Core cross-section | 0.34 mm2 | |
| Housing material | Stainless steel 1.4305 / AISI 303 | |
| Sensing face | PBT | |
| Housing diameter | 12 mm | |
| Degree of protection | IP67 | |
| Note | 1) In the temperature range below 0 °C, permissible operating voltage Ub 80…253 V Safety fuse less than or equal to 2 A (quick-blow) according to IEC 60127-2 Sheet 1 Recommendation: after a short circuit, check that the device is functioning correctly. | |
| General information | ||
| Scope of delivery | 2 self locking nuts in scope of delivery | |
