Inductive proximity sensor with M18*1 thread, AC 3 wire output, manufacturer direct sale.
Functions:
Red LED checks the state of proximity sensor
High repeated positioning accuracy
High switching frequency
Wide voltage range
Antivibration, dust, water and oil prevention
Reverse power protection, short circuit protection, directly connecting with PLC
Can replace small switches and limit switches
Specification:
Model | CHN-PSI-18A8JA3 |
Installation type | Unshielded | Shielded |
All the output methods | DC type | NPN | NO | NO |
NC | NC |
NO+NC | NO+NC |
PNP | NO | NO |
NC | NC |
NO+NC | NO+NC |
2 wire | NO | NO |
NC | NC |
AC type | 2 wire | NO | NO |
NC | NC |
3 wire | NO+NC | NO+NC |
Detection range | 8mm±10% | 5mm±10% |
Setting distance | 0-7mm | 0-4mm |
Delay distance | ≤10% detection range |
Detection object | Magnetic metal (the detection distance decreases when it is non-magnetic metal) |
Standard detection object | Iron 18*18*1mm |
Response frequency | DC: 0.8kHz, AC: 50Hz |
Supply voltage | DC type: DC 12-24V (6-36V), impulse (p-p) 10% below; AC type: AC 110-220V (90-250V) 50/60Hz |
Withstand voltage | AC1000V 50/60Hz 1min between charging part and housing |
Voltage influence | Inside ±15% rated supply voltage range, at rated supply voltage value, inside ±10% detection distance |
Consumption current | N/P type: ≤13mA, D type: ≤0.8mA, A type: ≤1.7mA |
Control output | N/P type: ≤300mA, D type: ≤200mA, A type: ≤400mA |
Loop protection | N/P/D type: reversal connection protection, surge absorption, load short-circuit protection, A type: surge absorption |
Ambient temperature & humidity | Operation temperature/storage temperature: -30~65℃ (no freeze, no dew); Operation humidity/storage humidity: 35~95%RH |
Temperature influence | Temperature range -30~65℃, at +23℃, ±15% detection distance; Temperature range -25~60℃, at +23℃, ±10% detection distance |
Insulation impedance | ≥50MΩ (DC500 megameter) between charging part and housing |
Material | Housing: Nickel plated brass, Detection surface: ABS |
Protection class | IP67 |
Cable length | 1.2m |
Dimensional drawing (unit: mm):

Wiring diagram:

Tips: The current and voltage of proximity sensor
- No-load current (IO): The current consumption measured in no-load condition.
- Operating current (IL): The maximum load current measured in the condition of proximity sensor continuously working.
- Instantaneous current (IK): The permissible current that appears in a short time and doesn't damage the proximity sensor, when the proximity sensor is closed.
- Residual current (IR): The current that goes through the load, when the proximity sensor is disconnected.
- Operating voltage (UB): It means the maximum and minimum value of the operating voltage. In this range, the proximity sensor can ensure the safe operation.
M18 inductive proximity sensor can detect a variety of metals, small size, long life, cheap price, unshielded type installation, anti-interference ability, 8mm detection distance, supply voltage AC 120V, manufacturer direct sale.