Danfoss RT266AL mechanical differential pressure switch with bellows sensing element, SPDT (neutral zone) contact and auto reset. Monitors the pressure difference across two connections; differential setting range 0 to 0.9 bar; maximum working pressure 7 bar; G 3/8 male pressure connection (ISO 228-1); enclosure IP66. Danfoss code number 017D008166; EAN 5702428042680.
| Brand | Danfoss |
| Model | RT266AL differential pressure switch |
| Code number | 017D008166 |
| Differential pressure range | 0 to 0.9 bar |
| Maximum working pressure | 7 bar |
| Contact function | SPDT (neutral zone) |
| Reset | Auto |
| Pressure sensing element | bellows |
| Pressure connection | G 3/8 male (ISO 228-1) |
| Enclosure | IP66 |
| Ambient temperature range | -50 to +70 degC (-58 to +158 degF) |
| Cable entry | 2 x Pg 13.5 |
| Contact rating | AC15=3 A at 400 V; AC1=10 A at 400 V; AC3=4 A at 400 V; DC13=12 W at 220 V; LR=28 A at 400 V |
| Maximum test pressure | 8 bar |
| EAN | 5702428042680 |
| Net weight | 1.149 kg |
| Gross weight | 1.4 kg |
| Standards | EN 60947-4, EN 60947-5 |
| Approvals | CCC, CE, EAC, LVD, PED, RMRS |
| Type | RT266AL |
| Product group | Switches and thermostats |
| Ambient temperature range [°C] [max] | 65 °C |
| Ambient temperature range [°C] [min] | -20 °C |
| Ambient temperature range [°F] [max] | 149 °F |
| Ambient temperature range [°F] [min] | -4 °F |
| Approval | CCC |
| CE mark | Yes |
| China RoHS compliance | Yes |
| Contact differential [bar] | 0.05 bar |
| Diff.press.setting range [bar] [max] | 0.9 bar |
| Diff.press.setting range [bar] [min] | 0 bar |
| Diff.press.setting range [MPa] [max] | 0.09 MPa |
| Diff.press.setting range [MPa] [min] | 0 MPa |
| Diff.press.setting range [psi] [max] | 13.1 psi |
| Diff.press.setting range [psi] [min] | 0 psi |
| EEE category | 5 small equipment (any external dimension < 50 cm) |
| Electrical conn | |
| Male/Female | Female |
| Electrical connection | Screwed cable entry |
| Electrical connection size | 2xPg 13.5 |
| Electrical connection standard | DIN 40430 |
| Electrical spec. standard | EN 60947-4/-5 |
| EN 60947 electrical properties | Insulation: 400V |
| EN 60947 wiring properties | Flex, ferrules: 0.2-1.5 mm2 |
| Enclosure rating IP | IP66 |
| EU RoHS compliance | Yes |
| In scope of WEEE | Yes |
| Max. neutral zone [bar] | 0.23 bar |
| Max. test pressure [bar] Pe | 8 bar |
| Max. test pressure [psig] | 116 psig |
| Max. Working Pressure [bar] | 7 bar |
| Max. Working Pressure [psig] | 101 psig |
| Operat. range LP side [bar] Pe [max] | 6 bar |
| Operat. range LP side [bar] Pe [min] | -1 bar |
| Operat. range LP side [psig]Pe [max] | 87 psig |
| Operat. range LP side [psig]Pe [min] | -15 psig |
| Pressure connection notes | Weld nipple d6.5/D10mm |
| Pressure connection size | 3/8 |
| Pressure connection standard | ISO 228-1 |
| Pressure connection type | G |
| Pressure Male/Female | Male |
| Pressure range [bar] Pe [max] | 6 bar |
| Pressure range [bar] Pe [min] | -1 bar |
| REACH Candidate List substances | Lead (CAS no. 7439-92-1) |
| Relay release time [s] | 0 s |
| Reset function | Auto |
| Material | Bellows sensing element |
| Pressure rating | 7 bar |
| Temperature range | -50 to +70 degC |
| IP rating | IP66 |
| Primary standard | EN 60947-5 |
| Thread standard | ISO 228-1 |
| MOQ | 1 |
G 3/8 male (ISO 228-1) pressure connection. Neutral-zone (adjustable) differential pressure switch; confirm range and reset type against application.