General data
Rated switching distance 4 mm
Mounting conditions Flush
Secured operating distance ≤ (0.81 × Sn) mm
Repeat accuracy ≤ 2 % of full scale
Temperature drift ≤ ±10 %
≤ ± 15 %, ≤ ‐25 °C v ≥ +70 °C
Hysteresis 3…15 %
Electrical data
Operating voltage UB 10…30 VDC
Ripple Uss ≤ 10 % UBmax
DC rated operating current Ie ≤ 200 mA
No-load current ≤ 25 mA
Residual current ≤ 0.1 mA
Isolation test voltage 0.5 kV
Short-circuit protection yes/Cyclic
Voltage drop at Ie ≤ 1.8 V
Wire break/reverse polarity protection yes/Complete
Output function 3-wire, NO contact, PNP
DC field stability 300 mT
AC field stability 300 mTSS
Insulation class ÷
Switching frequency 3 kHz
Mechanical data
Design Threaded barrel, M12 x 1

Technical data
Dimensions 52 mm
Housing material Stainless steel, 1.4301 (AISI 304)
Active area material Plastic, LCP
Max. tightening torque of housing nut 10 Nm
Electrical connection Connector, M12 × 1
Environmental conditions
Ambient temperature -30…+85 °C
Vibration resistance 55 Hz (1 mm)
Shock resistance 30 g (11 ms)
Protection class IP68
MTTF 874 years acc. to SN 29500 (Ed. 99) 40
°C

BALLUFF BESM18 ML-PSC50A-S04G-W