Danfoss | 017D001566
017D001566
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The 017D001566 pressure switch is part of the RT Pressure Switches series manufactured by Danfoss for hydraulic automation tasks such as starting pumps or signaling alarms when system pressure deviates from the set value. It operates with a differential of 0.5 bar, allowing a narrow control band between switch engagement and release. The low-pressure bellows respond from −1 bar up to 36 bar, so the device covers both slight vacuum and moderate positive pressures found in hydraulic reservoirs. Continuous service is supported up to 42 bar, while a test pressure limit of 47 bar permits integrity checks without damaging internal elements. An automatic reset returns the contacts to their initial state after pressure stabilizes, and a relay release time of 0 s ensures the circuit opens immediately once the falling threshold is reached. Electrical protection is improved by a rated impulse voltage of 4 kV that withstands lightning-induced transients, and an insulation voltage of 400 V matches common control voltages in industrial cabinets.
For installation resilience, the housing carries an IP66 enclosure rating, preventing dust ingress and high-pressure water intrusion common in wash-down zones. The process interface uses an M-profile connection with a 12 × 1.5 mm thread so the switch seats directly into standard metric manifolds without adapters. A net weight of 0.882 kg simplifies mounting on small frames or bracket assemblies, and a total package volume of 4.715 L aids space planning inside cramped equipment bays. Downstream wiring is safeguarded by a 10 A short-circuit fuse that disconnects the supply if the contact set is overloaded.
Technical Specifications
Differential
0.5 bar
Enclosure Rating
IP66
Insulation Voltage
400 V
Lp Bellows Max
36 bar
Lp Bellows Min
-1 bar
Max Test Pressure
47 bar
Max Working Pressure
42 bar
Net Weight
0.882 Kilogram
Pressure Connection Size
12 x 1.5
Pressure Connection Type
M
Rated Impulse Voltage
4 kV
Relay Release Time
0 s
Reset Function
Auto
Short Circuit Fuse
10 A
Volume
4.715 Liter
1620 Old Apex Road
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