Danfoss | 060B017991
060B017991
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The 060B017991 differential pressure switch belongs to the MP Differential Pressure Switches series from Danfoss and is installed to supervise pressure drops in hydraulic automation loops. It employs an SPDT contact to transfer a clean changeover signal to the control system when the measured differential reaches the factory setting of 0.65 bar. A usable adjustment span from 0.3 to 4.5 bar lets technicians match the trip point to pump protection or filter monitoring duties, while a fixed contact differential of 0.2 bar establishes the hysteresis between make and break. After activation the relay waits 60 s before releasing, and restoration requires a manual reset so that operators acknowledge the event before the circuit is re-armed.
The device operates in ambient temperatures from −40 to 60 °C, allowing exposed installation on outdoor hydraulic skids. A 3/8 threaded pressure port built to ISO 228-1 connects directly to the process line, and the sensing chamber withstands a continuous 17 bar working pressure with a 22 bar proof test for safety checks. The enclosure is rated IP20 for use inside guarded panels, and wiring enters through a Pg 13.5 cable gland that complies with DIN 40430 to secure conductors against pullout. These connection details, together with the defined pressure limits, provide a compact and dependable switching element for differential pressure control in automated fluid power equipment.
Technical Specifications
Ambient Temp Max
60 °C
Ambient Temp Min
-40 °C
Contact Differential
0.2 bar
Contact Function
SPDT
Diff Pressure Max
4.5 bar
Diff Pressure Min
0.3 bar
Electrical Conn Size
Pg 13.5
Electrical Conn Standard
DIN 40430
Enclosure Rating
IP20
Factory Setting
0.65 bar
Max Test Pressure
22 bar
Max Working Pressure
17 bar
Pressure Conn Standard
ISO 228-1
Pressure Connection Size
3/8
Relay Release Time
60 s
Reset Function
Manual Min
1620 Old Apex Road
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