Description
DFC17B97F001 | Sauter | Heavy-duty pressure switch
How energy efficiency is improved
Control and monitoring according to needs and with no auxiliary energy.
Features
- For regulating and monitoring pressure in liquids, gases and vapours
- Especially suitable for installations subject to vibrations
- Contact rating 1 mA/6 V to 10 A/400 V
- Gold-plated silver contacts, vibration-proof snap-action switch with single-pole change-over switch
- Upper and lower switching points can be set independently of each other
- Sealable
- Splashproof
- DFC17B**F001: Pressure sensor made of brass for non-aggressive media
- DFC27B**F002: Pressure sensor made of stainless steel for aggressive media
Technical Data
Power supply
| Maximum load with gold-plated contacts) | 200 mA, 50 V |
| Minimum load with gold-plated contacts) | 1 mA, 6 V |
| Maximum load with silver-plated contacts) | 10(2) A, 400 V~(25 W), 250 V= |
| Minimum load with silver-plated contacts | 100 mA, 24 V |
Ambient conditions
| Temperature of medium | ≤ 110 °C |
| Admissible ambient temperature | –40…70 °C |
Construction
| Housing | Transparent cover |
| Housing material | Light metal |
| Cable inlet | PG 13.5 |
| Screw terminals | For electrical cables of up to 2.5 mm² |
| Pressure connection | G½” male |
Standards and directives
| Type of protection | IP44 (EN 60529) |
| Protection class | I (IEC 60730) |
| Test marks | TÜV DWFS (SDBF) ID: 0000006018 DWFS (SDB) ID: 0000006019 DB (SDBF) ID: 0000006017 |
| Mode of operation | Type 2 B (EN 60730) |
E conformity according to
| Low-Voltage Directive 2014/35/EU | EN 60730-1, 60730-2-6 |
| EMC Directive 2014/30/EU | EN 6100-6-1, EN61000-6-2 EN 61000-6-3, EN 61000-6-4 |
| PED 2014/68/EU | VdTÜV pressure information sheet 100, sheet 1, cat. IV, DIN 3398 T4 EN 12952-11, EN 12953-9 |
Specifications
| Setting range (bar) | 0.5…0.6 |
| Min. switching difference (bar) | 0.3 |
| Maximum pressure (bar) | 21 |
| Max. temp., sensor (°C) | 110 |
| Maximum load with gold-plated contacts | 200 mA, 50 V |
| Minimum load with gold-plated contacts | 1 mA, 6 V |
| Maximum load with silver-plated contacts | 10(2) A, 400 VAC (25 W), 250 VDC |
| Minimum load with silver-plated contacts | 100 mA, 24 V |
| Media temperature | ≤ 110 °C |
| Ambient temperature | −40…70 °C |
| Housing | Transparent cover |
| Housing material | Light alloy |
| Cable inlet | PG 13.5 |
| Screw terminals For electrical cables | up to 2.5 mm² |
| Pressure connection | G½” A |
| Type of protection | IP44 (EN 60529) |
| Protection class | I (IEC 60730) |
| Test mark | TÜV DWFS (SDBF) ID: 06018 DWFS (SDB) ID: 06019 DB (SDBF) ID: 06017 |
Product data
| Setting range (bar) | 25…50 |
| Min. switching difference(bar) | 2.00 |
| Maximum pressure (bar) | 100 |
| Max. temp., sensor (°C) | 70 |
| Admissible vacuum loading (bar) | -1.0 |
| Weight (kg) | 1 |
Description of operation
When the pressure exceeds the upper change-over point (which is set in the scale on the right), the contacts switch from 1-2 to 1-3.
When the pressure falls below the lower change-over point (which is set in the scale on the left), the contacts switch from 1-3 to 1-2.
The vibration-proof snap-action switch has a pre-loaded spring that only activates the change-over mechanism when the change-over point has been reached. As a result, the contact force is maintained up to the change-over point even when the switch is activated very slowly.
Intended use
This product is only suitable for the purpose intended by the manufacturer, as described in the “Description of operation” section.
All related product regulations must also be adhered to. Changing or converting the product is not admissible.
Engineering and fitting notes
The pressure limiters conform to the European Directive on pressure equipment (PED) 97/23/EC and belong to device category IV as safety components. They are permitted for liquid combustibles and heat transfer oils.
Permissible fluids for pressure switches with safety function:
- Fluids Group I, hazard potential Categories IV or V according to Article 13 of the PED 2014/68/EU
- Fluids Group II
The devices also conform to Low-Voltage Directive 2014/35/EU and EMC Directive 2014/30/EU.
The devices can be used as safety pressure limiters (SDBF) for falling pressure when an electrical interlock circuit is used (see application examples) and the requirements of EN 50156-1 are fulfilled.
The electrical plant devices must adhere to VDE 0660 or VDE 0435.
Part Number: DFC17B97F001
Manufacturer: Sauter
Sauter products are subject to a minimum order of £70. If your order includes any Sauter items and their combined value is less than £70 then your order will be rejected when we process it for shipping.
Is this the right product for you?
email: sales@hvac‑sanitary.co.uk and we will make sure.
