Danfoss | 017D003666
017D003666
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The 017D003666 pressure switch belongs to the RT Pressure Switches series from Danfoss. It serves hydraulic automation by opening or closing circuits when system pressure reaches a set point. The switch tolerates ambient temperatures from -50 °C to 70 °C, allowing reliable service in refrigerated or engine-room environments. A contact differential of 0.3 bar provides narrow switching hysteresis for precise pressure control. The single-pole, double-throw contact form enables changeover between two circuits based on pressure status. A male 3/8 port built to ISO 228-1 threads connects directly to common hydraulic lines. The IP66 enclosure rating blocks dust and high-pressure water, so the switch can be mounted in exposed machine areas. A maximum working pressure of 22 bar defines the continuous load the sensing element can accept without degradation.
The electrical side accepts two Pg 13.5 cable glands, simplifying field wiring through standard fittings. A terminal layout that follows DIN 40430 maintains consistency with common control panels. During commissioning, technicians can raise system pressure to the 25 bar test limit without damaging the device. Continuous insulation holds up to 400 V, aligning with typical industrial supply levels. A rated impulse voltage of 4 kV withstands transient surges caused by coil switching. A 10 A fuse rating defines the maximum current the contact set should carry to prevent overheating. These limits allow dependable operation of pumps, presses, or valve manifolds in hydraulic automation tasks.
Technical Specifications
Ambient Temp Max
70 °C
Ambient Temp Min
-50 °C
Contact Differential
0.3 bar
Contact Form
SPDT
Electrical Entry Size
2xPg 13.5
Electrical Standard
DIN 40430
Enclosure Rating
IP66
Fuse Size
10 A
Insulation Voltage
400 V
Max Test Pressure
25 bar
Max Working Pressure
22 bar
Pressure Port Gender
Male
Pressure Port Size
3/8
Pressure Port Standard
ISO 228-1
Rated Impulse Voltage
4 kV
1620 Old Apex Road
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