Model 1221 – DC limit style
The 1221 is a low cost limit style DC, three wire, proximity switch. When used with the 1262 provides a MSHA approved motion sensing system.
Product SheetInput
Voltage: 10 to 26 VDC,10% ripple allowedTransient Protection: MOV
Output
Max Load Current:: 100 mA (continuous)Physical
Operating Temp: -20°C to +65°C (-4° to 155° F)Termination: Internal terminal block
Housing: Fire-retardant ABS/polycarbonate blend
Environmental Rating:: NEMA 1,3,4,6,12,13,IP67
Sensing
Sensing Distance:: 14.29 mm (0.56 in)Repeatability:: ± 5 mm (0.02 in)
Hysteresis:: 3.18 mm (0.12 in)
Target Size:: 40mm x 40mm x 1mm mild steel
Switching Freq:: 1.0 kHz maximum
Range Derating:: Chrome-nickel 0.9 Brass 0.5 Aluminum 0.45 Copper 0.4
