WIKA · Pressure measurement · Family APA
Absolute pressure switch
Absolute pressure switch with flameproof enclosure Ex d, suitable for safety-critical applications in chemical, petrochemical, oil and gas, power generation, and water/wastewater industries.
Range
0…1.5 bar
Accuracy
≤ 1 % of span
Protection
IP66
CERoHSEACCCCKOSHAINMETROEx-UkraineATEXIECExEx db IIC T6/T4 Ga/GbEx tb IIIC T85/T135 Db IP66
Price
On request
Depends on configuration
Description
These high-quality pressure switches have been developed especially for safety-critical applications. The high quality of the products and manufacturing in accordance with ISO 9001 ensure reliable monitoring of your plant. In production, the switches are traced by quality assurance software at every step and subsequently are 100 % tested.
In order to ensure as flexible operation as possible, the absolute pressure switches are fitted with micro switches, which enable the switching of an electrical load of up to AC 250 V, 20 A directly.
Special features
- No power supply needed for switching of electrical loads
- Robust switch enclosure from aluminium, IP66, NEMA 4X
- Setting ranges from 0 ... 25 mbar abs. to 0 ... 1.5 bar abs.
- Repeatability: ≤ 1 % of span
- 1 or 2 independent set points, SPDT or DPDT, high switching power up to AC 250 V, 20 A
Identification
| Model | APA, APA10 |
| Product family | APA |
| Subcategory | Absolute pressure switch |
Measuring range
| Pressure ranges | 0…1.5 bar · 0…25 mbar · 0…0.16 bar · 0…0.25 bar · 0…0.4 bar · 0…0.6 bar · 0…1 bar · 0…40 mbar · 0…60 mbar · 0…25 mbar abs. · 0…1.5 bar abs. |
Accuracy
| Accuracy class | ≤ 1 % of span |
| Accuracy standard | IEC 61298-2:2008 |
| Safety integrity level (SIL) | SIL 3-capable (option) |
Process conditions
| Process connection | ¼ NPT female½ NPTG ½ AG ¼ A maleG ¼ femaleM20 x 1.5 maleG ¼ A male via adapterG ¼ female via adapterM20 x 1.5 male via adapter½ NPT maleG ½ A male½ NPT female |
| Process temperature | −30…+85 °C |
Electrical characteristics
| Electrical connection | ½ NPT female |
| Switching function | SPDT or DPDT |
| Switching contacts | 2 |
Materials
| Case material | Aluminium alloy, copper-free, coated with acrylic paint |
| Wetted parts material | AISI 316, AISI 316L |
| Sealing material | NBR |
Operating environment
| Ambient temperature | −30…+85 °C |
| IP rating | IP66 |
| Weight | 5.5 kg |
Certifications and approvals
| Certifications | CERoHSEACCCCKOSHAINMETROEx-UkraineATEXIECEx |
| Explosion protection | Ex db IIC T6/T4 Ga/GbEx tb IIIC T85/T135 Db IP66 |
Additional details
| Datasheet languages | EN, DE |
Tables from datasheet
| Contact version | Electrical rating (resistive load) | ||
|---|---|---|---|
| AC | DC | ||
| UN | 1 x SPDT, silver | 250 V, 15 A | 24 V, 2 A, 125 V, 0.5 A, 220 V, 0.25 A |
| US | 1 x SPDT, silver, hermetically sealed, argon gas filling 2) | 250 V, 15 A | 24 V, 2 A, 220 V, 0.5 A |
| UO | 1 x SPDT, gold-plated, hermetically sealed, argon gas filling 2) | 125 V, 1 A | 24 V, 0.5 A |
| UG | 1 x SPDT, gold-plated | 125 V, 1 A | 24 V, 0.5 A |
| UR | 1 x SPDT, silver, adjustable dead band | 250 V, 20 A | 24 V, 2 A, 220 V, 0.5 A |
| DN | 2 x SPDT or 1 x DPDT, silver | 250 V, 15 A | 24 V, 2 A, 125 V, 0.5 A, 220 V, 0.25 A |
| DS | 2 x SPDT or 1 x DPDT, silver, hermetically sealed, argon gas filling 2) | 250 V, 15 A | 24 V, 2 A, 220 V, 0.5 A |
| DO | 2 x SPDT or 1 x DPDT gold-plated, hermetically sealed, argon gas filling 2) | 125 V, 1 A | 24 V, 0.5 A |
| DG | 2 x SPDT or 1 x DPDT, gold-plated | 125 V, 1 A | 24 V, 0.5 A |
| Measuring cell | Setting range | Working range | Proof pressure | Fixed dead band for contact version | Adjustable dead band for contact version | |
|---|---|---|---|---|---|---|
| in bar abs. | in bar abs. | in bar abs. | 1 contact UN, US, UO, UG in mbar abs. | 2 contacts DN, DS, DO, DG in mbar abs. | 1 contact UR in mbar abs. | |
| L | 0 ... 0.16 | 0 ... 1.5 | 11 | ≤ 5 | ≤ 5 | 20 ... 60 |
| 0 ...0.25 | ≤ 8 | ≤ 8 | 30 ... 90 | |||
| H | 0 ... 0.4 | ≤ 20 | ≤ 20 | 30 ... 90 | ||
| 0 ... 0.6 | ≤ 25 | ≤ 25 | 40 ... 125 | |||
| 0 ... 1 | ≤ 30 | ≤ 30 | 100 ... 270 | |||
| 0 ... 1.5 | ≤ 65 | ≤ 65 | 110 ... 320 |
| Measuring cell | Setting range | Working range | Proof pressure | Fixed dead band for contact version | Adjustable dead band for contact version | |
|---|---|---|---|---|---|---|
| in mbar abs. | in bar abs. | in bar abs. | 1 contact UN, US, UO, UG in mbar abs. | 2 contacts DN, DS, DO, DG in mbar abs. | 1 contact UR in mbar abs. | |
| 10 | 0 ... 25 | 0 ... 1 | 2 | ≤ 1.2 | ≤ 1.6 | 3 ... 8 |
| 0 ... 40 | ≤ 1.6 | ≤ 2.2 | 4 ... 11 | |||
| 0 ... 60 | ≤ 2.0 | ≤ 2.5 | 5 ... 14 |
| Logo | Description | Country |
|---|---|---|
| EU declaration of conformity ■ Pressure equipment directive ■ Low voltage directive ■ RoHS directive ■ ATEX directive 2) II 1/2GD | European Community | |
| IECEx 2) Ex db IIC T6/T4 3) Ga/Gb Ex tb IIIC T85/T135 3) Db IP66 | International | |
| EAC (option) Hazardous areas 2) | Eurasian Economic Community | |
| Ex-Ukraine (option) Hazardous areas 2) | Ukraine | |
| CCC (option) Hazardous areas 2) | China | |
| KOSHA (option) Hazardous areas 2) | South Korea | |
| INMETRO (option) Hazardous areas 2) | Brazil |
Industry
Energy
Safety-critical applications in general process instrumentation, especially in the chemical and petrochemical industries, oil and gas industries, power generation incl. nuclear power plants, water/wastewater industries, mining
Industry
Machinery
Absolute pressure monitoring and control of processes
Couldn't find the answer in the documentation? An engineer will reply within a business day.
Ask an engineer →All variants · Article table
1 standard articles of family APA
If you know the code — pick directly. If not — use the configurator in mode “01”.
Stock:
SKUConfigurationPriceStockAction
Showing 1 of 1. Price on request — an engineer will quote your configuration.
