Inductive sensor NJ20+U4+W
- 20 mm non-flush
- 2-wire AC
- Limit switch style housing
- Metal base 1/2" NPT
Please note: All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.
Download the complete datasheet as a PDF:
Datasheet excerpt: Technical data of NJ20+U4+W
| General specifications | ||
|---|---|---|
| Switching function | Normally open/closed (NO/NC) | |
| Output type | Two-wire | |
| Rated operating distance | 20 mm | |
| Installation | non-flush | |
| Output polarity | AC | |
| Assured operating distance | 0 ... 16.2 mm | |
| Actual operating distance | 18 ... 22 mm typ. 20 mm | |
| Reduction factor rAl | 0.35 | |
| Reduction factor rCu | 0.35 | |
| Reduction factor r304 | 0.8 | |
| Output type | 2-wire | |
| Nominal ratings | ||
| Operating voltage AC | 20 ... 253 V 1) | |
| Switching frequency | 0 ... 20 Hz | |
| Hysteresis | 1 ... 10 typ. 5 % | |
| Voltage drop | ≤ 5 V | |
| Momentary current (20 ms, 0.1 Hz) | 0 ... 3000 mA | |
| Operating current | 8 ... 500 mA | |
| Off-state current | 0.5 ... 1.95 mA typ. 1.2 mA | |
| Off-state current UB 24 V, switching element off | 0.5 ... 1.7 mA typ. 1.2 µA | |
| Operating voltage indicator | LED, green | |
| Switching state indicator | LED, yellow | |
| Functional safety related parameters | ||
| MTTFd | 810 a | |
| Mission Time (TM) | 20 a | |
| Diagnostic Coverage (DC) | 0 % | |
| Compliance with standards and directives | ||
| Standard conformity | ||
| Standards | EN 60947-5-2:2007 IEC 60947-5-2:2007 |
|
| 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) | |
| Storage temperature | -25 ... 85 °C (-13 ... 185 °F) | |
| Mechanical specifications | ||
| Connection type | screw terminals | |
| Information for connection | A maximum of two conductors with the same core cross section may be mounted on one terminal connection! tightening torque 1.2 Nm + 10 % |
|
| Core cross section | up to 2.5 mm2 | |
| Minimum core cross-section | without wire end ferrule 0.5 mm2 , with connector sleeves 0.34 mm2 | |
| Maximum core cross-section | without wire end ferrule 2.5 mm2 , with connector sleeves 1.5 mm2 | |
| Housing material | PBT/base of metal | |
| Sensing face | PBT | |
| Degree of protection | IP68 | |
| Dimensions | ||
| Height | 40 mm | |
| Width | 40 mm | |
| Length | 118 mm | |
| Note | 1) In the temperature range below 0 °C, permissible operating voltage Ub 80...253 V Safety fuse ≤ 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 | ||
| Supplementary information | Connection selectable as normally open or normally closed operation. Only wire one output per device. |
|
Classifications
| System | Classcode |
|---|---|
| ECLASS 13.0 | 27274001 |
| ECLASS 12.0 | 27274001 |
| ECLASS 11.0 | 27270101 |
| ECLASS 10.0.1 | 27270101 |
| ECLASS 9.0 | 27270101 |
| ECLASS 8.0 | 27270101 |
| ECLASS 5.1 | 27270101 |
| ETIM 9.0 | EC002714 |
| ETIM 8.0 | EC002714 |
| ETIM 7.0 | EC002714 |
| ETIM 6.0 | EC002714 |
| ETIM 5.0 | EC002714 |
| UNSPSC 12.1 | 39121550 |
Details: NJ20+U4+W
Product Documentation: NJ20+U4+W
| Product information | Language | File Type | File Size |
|---|---|---|---|
| Installation conditions | ENG | 210 KB |
Design / Simulation: NJ20+U4+W
| CAD | Language | File Type | File Size |
|---|---|---|---|
| CAD 3-D / CAD 3-D | ALL | STP | 181 KB |
Approvals: NJ20+U4+W
| Certificates | Certificate No. | Language | File Type | File Size |
|---|---|---|---|---|
| Canada USA CSA Ordinary Location | 1007121 | ALL | 198 KB | |
| Canada USA UL Ordinary Location | UL-US-L87056-11-41301991-3 / UL-CA-L87056-31-41301991-3 | ALL | 1806 KB | |
| China CQC CCC | 2024010305676440 | ALL | 1075 KB |
Associated Products: NJ20+U4+W
| Accessories | ||||||
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Pepperl+Fuchs SE
Lilienthalstraße 200
68307 Mannheim
Germany
info@de.pepperl-fuchs.com
+49 621 776-0
Pepperl+Fuchs is a leading developer and manufacturer of electronic sensors and components for the global automation market. Continuous innovation, enduring quality, and steady growth have been the foundation of our success for more than 70 years. Pepperl+Fuchs employs 6,300 people worldwide and has manufacturing facilities in Germany, USA, Singapore, Hungary, Indonesia and Vietnam, most of them ISO 9001 certified.