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.

Input

Voltage: 10 to 26 VDC,10% ripple allowed
Transient 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

Wiring

Dimensions

Ordering Data