# Pressure Switch, Diaphragm, Vacuum, G 1/4" BSP, 10 bar, 50 bar, SPDT, 250 VAC
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**URL**: https://novapart.co/products/0184-45903-1-009/pressure-switch-diaphragm-vacuum-g-1-4-bsp-10-bar
**SKU**: 0184-45903-1-009
**Manufacturer**: SUCO
**Category**: Sensors & Transducers || Sensors || Pressure Sensors, Transducers || Pressure Switches
**Price**: €67.4000
**Stock**: 10+
**Lead Time**: 64 days (indicative)
## Description
The SUCO 0184-45903-1-009 is a diaphragm-based vacuum pressure switch designed for industrial monitoring and control applications. Engineered with a robust zinc-plated steel body, this component features a G 1/4" BSP pressure port and is rated for an operating pressure range of 10 bar to 50 bar. The device utilizes a factory-calibrated SPDT (Single Pole Double Throw) changeover contact configuration, providing versatile switching logic for both normally open and normally closed circuit requirements. Electrical termination is facilitated via an integrated DIN connector, ensuring a secure and reliable interface in demanding environments.
Electrically, the switch supports a maximum resistive load of 4A at 250 VAC or 24 VDC, making it suitable for direct control of relays, solenoids, or signal indicators. The internal diaphragm mechanism, constructed with a Nitrile (NBR) seal, offers compatibility with hydraulic oils, engine oils, and compressed air systems across an operating temperature range of -30°C to +100°C. With a mechanical service life rated for up to 10^6 operations at 50 bar, this sensor provides long-term stability in high-cycle automation and hydraulic monitoring systems. The unit is protected to IP65 standards, ensuring resistance against dust and low-pressure water jets in industrial installations.
## Specifications
| Parameter | Value |
|---|---|
| Svhc | No SVHC (16-Jan-2020) |
| Deadband Max | - |
| Deadband Min | - |
| Pressure Type | Vacuum |
| Product Range | 0184 Series |
| Sensor Mounting | Stud |
| Pressure Port Size | 1/4" |
| Pressure Port Type | G 1/4" BSP |
| Contact Configuration | SPDT |
| Electrical Connection | DIN Connector |
| Switching Current Max | 4A |
| Switching Voltage Max | 250VAC |
| Operating Pressure Max | 50bar |
| Operating Pressure Min | 10bar |
| Pressure Fitting Style | G 1/4" BSP |
| Operating Temperature Max | 100°C |
| Operating Temperature Min | -30°C |
| Switching Current Dc Resistive | 4A |
| Switching Voltage Dc Resistive | 24V |
| Transducer Connection / Termination | - |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:679070/)
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**----- Start of picture text -----**
|||||
|---|---|---|---|
|pressure and|
|vacuum switches|
|—_—|i}|wom|
|50|DIAPHRAGM PRESSURE SWITCH WITH 4A RATED|
|40|
|CHANGEOVER CONTACTS AND BUILT IN CONNECTOR|
|• Range from 0.3 - 1.5 Bar to 10 - 100 Bar|
|Pg 9|• Up to 300 Bar overpressure|
|83|
|Ø34|• SPDT changeover contact|
|AF 27|• Zinc plated steel body|
|Type|
|• Nitrile, EPDM, Viton diaphragm seals|
|9|0184|
|7|Ø26|cow|
|SS|CHANGEOVER CONTACT DETAILS|TECHNICAL SPECIFICATION|
|Contact rating|4A|
|Maximum operation|200/min|
|Temperature|NBR|-30 to +100ºC|
|range|EPDM|-30 to +100ºC|
|FKM|-5 to +120ºC|
|Normally 2|4|Normally|
|closed|open|Maximum voltage|250VAC|
|1|Hysteresis adj.|10 to 30% (adjusted at factory)|
|Common|
|Mechanical life|10|[6]|operations at 50 Bar pressure|
|Body material|Zinc plated steel (Fe/Zn 12cC)|
|Protection|IP65|
**----- End of picture text -----**
**==> picture [540 x 252] intentionally omitted <==**
**----- Start of picture text -----**
|||||||
|---|---|---|---|---|---|
|ORDERING INFORMATION|
|_|[LLL]|Thread|Adjustment range (Bar)|Tolerance at room temp|Static|
|Type 0184|
|type|(Bar)|Overpressure (Bar)|
|45702|002|M12 x 1.5|
|1|0.3 - 1.5|±0.2|100|
|45703|003|/4" BSP|
|45802|041|M12 x 1.5|
|1|1 - 10|±0.5 - 1.0|
|45803|042|/4" BSP|
|45902|008|M12 x 1.5|
|1|10 - 50|±3.0|300|
|45903|009|/4" BSP|
|46102|011|M12 x 1.5|
|1|10 - 100|±3.0 - 5.0|
|46103|012|/4" BSP|
|▲|
|||
|SUCO diaphragm type|Material|Suitable for|
|1|Nitrile (NBR)|Hydraulic oil, engine oil, heating oil, turpentine, air|
|2|EPDM|Water, Hydrogen, Seawater, Acetylene, Ozone, Oxygen, Brake Fluid|
|3|Viton (FKM)|Hydraulic fluid (i.e. HFA, HFB, HFC, HFD), Gasoline|
**----- End of picture text -----**
~~a~~ **ORDER EXAMPLE** 10 - 50 Bar, being used with a Nitrile diaphragm seal would be as below. 0 1 8 4 4 5 9 0 3 1 0 0 9 ~~en~~ KILI DILar - **TYPE SWITCH FUNCTION & THREAD SEAL INTERNAL USE ONLY SETTING RANGE** Please note that all switches can be set & adjusted via the central turning screw. N.B. When using oxygen, the relating accident prevention regulations are to be observed. Above that we recommend not to exceed a maximum operational pressure of 10 Bar.
15
**0800 731 3187 www.oem.co.uk**
## Links
- [View this product on Novapart](https://novapart.co/products/0184-45903-1-009/pressure-switch-diaphragm-vacuum-g-1-4-bsp-10-bar)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/suco/0184-45903-1-009/pressure-switch-10-50bar-1-4inch/dp/679070)
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