Ueda Seisakusho
Ueda Seisakusho PDC/HDC Series Pressure Switch
Manufacturer: Ueda Seisakusho Co., Ltd.
Model : PDC/HDC series
Features
- The PDC/HDC series are compact in design and allow for setting the hysteresis (opening/closing pressure difference).
- A DIN terminal block is included as standard.
- The pressure receiving structure is a diaphragm type for the PDC series and a piston type high pressure specification for the HDC series.
PDC Series
■Product Information
| Item | Specification |
|---|---|
| Product Name | General-purpose compact pressure switch |
| Size | W.52×D.34.5×H.89 mm |
| Operating Frequency | Max. 100 cycles/min |
| Weight | Approx. 140 g |
| Body Dimensions | W.52 × D.34.5 × H.89 mm |
| Pressure Receiving Part | Diaphragm Type |
| Material | Nitrile rubber (NBR) |
| Main Body & Connection Material | Iron with zinc-plated finish |
| Fluid | Air, non-corrosive gases, and liquids such as hydraulic oil |
| Connection size | R1/4 (PT 1/4 thread) |
| Mounting Orientation | Optional |
| Repeatability Accuracy | ±2% (relative to the pressure set value) |
| Contact Configuration | SPDT 1ab (1C) |
| Temperature Range | -20 to +80°C |
| Vibration Resistance | 10G (10–2000 Hz) |
| Shock Resistance | 30G |
| CE Certification | Conforms to EU standard 73/23/EWG |
■Option
- Pressure receiving part made of stainless steel (SUS303)
- Pressure receiving diaphragm material change (FKM, EPDM, HNBR)
■Specifications
| Model | Pressure Adjustment Range (Range) MPa | ON-OFF Pressure Differential Range (Diff.) MPa | Pressure Resistance (MPa) | ||
|---|---|---|---|---|---|
| PDC-1-002-M-R-1 | 0.02 ~ 0.2 | Refer to detailed specifications and pressure range chart | 4.0 | ||
| PDC-1-008-M-R-1 | 0.08 ~ 0.8 | 4.0 | |||
| PDC-1-016-M-R-1 | 0.1 ~ 1.6 | 4.0 | |||
■Model Code Explanation
| (A) | Contact configuration: 1ab (1C) |
|---|---|
| (B) | Pressure setting range: 002 = 0.02 ~ 0.2 MPa 008 = 0.08 ~ 0.8 MPa 016 = 0.1 ~ 1.6 MPa |
| (C) | Diaphragm type: M = (Material: NBR) E = (Material: EPDM) |
| (D) | Connection port: R1/4 (PT1/4 thread) |
| (E) | DIN connector (EN175301-803) |
| (F) | Option code (e.g., stainless steel body type, etc.) |
■Contact Capacity
| Voltage | Resistive Load | Inductive Load |
|---|---|---|
| AC 100/200V | 3A | 0.4A |
| DC 24V | 2A | 1A |
- Minimum Current: 5 mA
HDC Series
■Product Information
| Item | Specification |
|---|---|
| Product Name | High pressure compatible compact pressure switch |
| Size | W.52×D.34.5×H.89 mm |
| Operating Frequency | 100 times/min or less |
| Weight | Approx. 140 g |
| Body Dimensions | W.52 × D.34.5 × H.89 mm |
| Pressure Receiving Part | Piston Type |
| Material | Steel |
| Main Body & Connection Material | Iron plating (with zinc coating) |
| Fluid | Hydraulic oils and other non-corrosive gases and liquids |
| Connection size | R1/4 (PT 1/4 thread) |
| Mounting Orientation | Any |
| Repeatability Accuracy | ±2% (relative to set pressure) |
| Contact Configuration | SPDT 1ab (1C) |
| Temperature Range | -20 to +80°C |
| Vibration Resistance | 10G (10–2000 Hz) |
| Shock Resistance | 30G |
| CE Certification | Compliant with EU Standard 73/23/EWG |
■Specifications
| Model | Pressure Adjustment Range (Range) MPa | ON-OFF Pressure Differential Range (Diff.) MPa | Pressure Resistance (MPa) | ||
|---|---|---|---|---|---|
| HDC-1-030-K-R-1 | 1.0 ~ 3.0 | Refer to product specifications and pressure differential range chart | 35.0 | ||
| HDC-1-120-K-R-1 | 1.0 ~ 12.0 | 35.0 | |||
| HDC-1-250-K-R-1 | 2.0 ~ 25.0 | 35.0 | |||
■Model Code Explanation
| (A) | Contact Configuration: 1ab (1C) |
|---|---|
| (B) | Pressure Setting Range: 030 = 1.0 to 3.0 MPa 120 = 1.0 to 12.0 MPa 250 = 2.0 to 25.0 MPa |
| (C) | Piston Type (Material: Steel) |
| (D) | Connection Port: R1/4 (PT 1/4 Thread) |
| (E) | DIN Terminal (EN175301-803) |
| (F) | Option Code |
■Contact Capacity
| Voltage | Resistive Load | Inductive Load |
|---|---|---|
| AC 100/200V | 3A | 0.4A |
| DC 24V | 2A | 1A |
