Product Description
The PHD Inc. 17502-2-08 / 17522-2 is a Series 1750 Compact DC Reed Proximity Switch set used for cylinder piston position sensing on PHD pneumatic, hydraulic, and Tom Thumb actuators. The 17502-2-08 is the cabled variant with an 8-foot cable, while the 17522-2 is the quick connect (M8 3-pin male connector) variant — both providing NPN (sink) or PNP (source) DC Reed output in a white housing with bi-polar LED indicator. These switches interface directly with programmable controllers, sequencers, and relays and are actuated by the cylinder's internal piston magnet. Note: Both models are factory-obsolete; the JC1RDU-K is the current factory replacement for the 17522-2.
Technical Specifications
| Specification | Value |
|---|---|
| Brand | PHD Inc. |
| Model / Part Number | 17502-2-08 / 17522-2 |
| Series | 1750 |
| Product Type | DC Reed Proximity Switch |
| Operating Principle | Magnetic Reed |
| Actuation | Piston Magnet |
| Input Voltage | 10–30 VDC |
| Output Type | NPN (Sink) or PNP (Source) |
| Power Capacity | 3 Watts Max |
| Load Current (Max) | 200 mA |
| Housing Color | White |
| LED Indicator | Bi-polar (Red) |
| 17502-2-08 Connection Type | Cabled — 8 ft (approx. 2.4 m) cable |
| 17522-2 Connection Type | Quick Connect — 3-pin M8 Male Connector |
| Wire Count | 3-Wire |
| Wire Colors | Brown (DC+), Black (Load), Blue (DC−) |
| Style | Compact, Low Profile |
| Compatible Products | PHD Tom Thumb, AV, HV, A, A2, A3, A3V, CRS, EH, SD, SE, SKSL Series Cylinders & Actuators |
| Replacement / Successor | JC1RDU-K (factory replacement for 17522-2) |
| Status | Obsolete / Phased Out by Factory |
We warranty all items for 30 days from date of purchase.