Danfoss RT260 Series Differential Pressure Switches
The Danfoss RT260 series are differential pressure switches with a single-pole changeover contact, switching on the differential between two opposing bellows elements (LP and HP) — independent of the absolute pressure on either bellows.
Typical duty: protecting liquid circulation pumps against too-low differential pressure, and protecting refrigeration compressor oil pressure.
Wenzhou Phonetoo Electromechanical Co., Ltd. is an authorized Danfoss distributor in China. Contact us for availability, pricing and delivery time.
Models
| Model | Setting range | Differential Δp | LP bellows range | Max. working pressure | Code numbers |
|---|---|---|---|---|---|
| RT 260A | 0.5 – 4 bar | 0.3 bar | –1 – 18 bar | 22 bar | 017D001466 (cutting ring ø6 mm); 017D002166 (G ⅛ A + weld nipple) |
| RT 262A | 0.1 – 1.5 bar | 0.1 bar | –1 – 9 bar | 11 bar | 017D001366 / 017D002566 |
| RT 265A | 1 – 6 bar | 0.5 bar | –1 – 36 bar | 42 bar | 017D007266 |
Key features
- Differential switching independent of absolute system pressure
- Wide adjustment range; snap-action contact system with precise cut-out
- IP66 enclosure versions; for AC and DC
- Interchangeable contact system; gold-plated contact versions for PLC applications
- Safety integrity: SIL 2 per IEC 61508
- Contact load: AC1 10 A / 400 V, AC3 4 A / 400 V
- Ambient: –50 °C to +70 °C
- Approvals: CE, PED, TÜV, CCC, marine (DNV, BV, RINA, RMRS, NKK, KR)
Applications
- Liquid circulation pump differential-pressure protection
- Refrigeration compressor lubricating-oil pressure protection
- Filter monitoring (alarm Δp = 0.8 bar, cut-out Δp = 1 bar factory setting on RT 265A)
- Industrial and marine refrigeration plants
Code numbers
Ordering codes for Danfoss RT 260A differential pressure switches. Two connection variants are available: cutting ring ø6 mm + soldered connector ø6.5/10 mm, and G 3/8 A (BSP male, ISO 228-1). Confirm the exact type and code number in your RFQ and we will quote it.
| Type | Regulation range [bar] | Differential Δp [bar] | LP bellows operating range [bar] | Max. working pressure PS [bar] | Max. test pressure P [bar] | Code no. (cutting ring ø6 mm + soldered connector ø6.5/10 mm) | Code no. (G 3/8 A) |
|---|---|---|---|---|---|---|---|
| RT 260A | 0.5 - 4 | 0.3 | -1 - 18 | 22 | 25 | 017D001466 | 017D002166 |
| 0.5 - 4 | 0.3 | -1 - 18 | 22 | 25 | – | 017D002266 * | |
| 0.5 - 6 | 0.5 | -1 - 36 | 42 | 47 | 017D001566 | 017D002366 | |
| 1.5 - 11 | 0.5 | -1 - 31 | 42 | 47 | 017D001666 | 017D002466 |
* 017D002266: manual reset (max. value).