PRODUCTSPRESSURE SWITCH
High-Precision Mechanical Pressure Switch
Model No. PSD-101
- Allows you to set the pressure just by aligning the scale.
- Small open/close pressure difference (≈ 0.01 MPa max.)
- The pressure can be precisely set with high repeat accuracy (±0.003 MPa).
- Robust for long-term safe use
- Models with an indicator lamp that lights up when switching occurs are also available.
- The installation bracket is included.
Standard specifications
| Operating fluid | Compressed air or non-corrosive gas | |
| Allowable pressure | 1.0 MPa | |
| Pressure error from the dial scale | ±3% FS max. (at 23°C) | |
| Switch contact model 1c | 1c | |
| Pipe connection threads | Rc1/4 | |
| Maximum operating pressure | 1.0 MPa | |
| Operating temperature | −10-50°C | |
| Weight | 1.5 kg | |
Model No.
| PSD | - | 101 | A | K1 | ST | 1 | T |
| Product name | [1] | [2] | [3] | [4] | [5] | ||
[1]Contact type
| Blank | High-sensitivity contact model (standard) Contact capacity (resistance load) 15 A: AC 125/250 V 2 A: DC 24 V |
| A | Minimal load contact model Contact capacity (resistance load) Up to 0.1 A: AC 100 V Up to 0.1 A: DC 24 V |
[2]Set pressure (MPa)
| Blank | 0.30-0.90 |
| K1 | 0.01-0.10 |
| K5 | 0.05-0.50 |
[3]Inclusion of indicator lamp and its color
| Blank | No indicator lamps. COM and NO are connected if the pressure rises. |
| ST | With indicator lamp (transparent) |
| SG | With indicator lamp (green) |
| SR | With indicator lamp (red) |
[4]Characteristics
| Blank | No indicator lamps. COM and NO are connected if the pressure rises. |
| 1 | AC 100 V. The lamp turns off and the load is applied if the pressure rises. |
| 2 | AC 200 V. The lamp turns off and the load is applied if the pressure rises. Notes: Cannot be set in the minimal load contact model (PSD-101A). |
| 3 | DC 24 V. The lamp turns on and the load is applied if the pressure rises. |
| 3P | DC 24 V. The lamp turns on and the load is applied if the pressure drops. |
[5]Pressure gauge
| Blank | Without pressure gauge |
| T | With pressure gauge |
| Indicator lamp | Model No. | Indicator lamp circuit | |
| High-sensitivity contact model | Minimal load contact model | ||
| Standard (without indicator lamp) |
PSD-101 PSD-101K1 PSD-101K5 |
PSD-101A PSD-101AK1 PSD-101AK5 |
COM and NO are connected if the pressure rises. Switch terminal only |
| AC 100 V Indicator lamp (neon) |
PSD-101ST1 PSD-101K1ST1 PSD-101K5ST1 |
PSD-101AST1 PSD-101AK1ST1 PSD-101AK5ST1 |
The lamp turns off and the load is applied if the pressure rises. |
| AC 200 V Indicator lamp (neon) |
PSD-101ST2 PSD-101K1ST2 PSD-101K5ST2 |
- | |
| DC 24 V Indicator lamp (LED) |
PSD-101ST3 PSD-101K1ST3 PSD-101K5ST3 |
PSD-101AST3 PSD-101AK1ST3 PSD-101AK5ST3 |
The lamp turns on and the load is applied if the pressure rises. |
| PSD-101ST3P PSD-101K1ST3P PSD-101K5ST3P |
PSD-101AST3P PSD-101AK1ST3P PSD-101AK5ST3P |
The lamp turns on and the load is applied if the pressure drops. | |