WIKA PSD-4-ECO, Operating Instructions Manual

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14247391.01 07/2019 EN/DE/FR/ES
13 WIKA operating instructions, model PSD-4-ECO
EN
5. Commissioning, operation
Sealing variants
5.4 Electrical mounting
5.4.1 Requirements for voltage supply
→ For power supply see product label
The power supply for the pressure switch must be made via an energy-limited electric circuit in accordance with
section 9.4 of UL/EN/IEC 61010-1, or an LPS per UL/EN/IEC 60950-1 / CSA C22.2 no. 60950-1, or class 2 in
accordance with UL1310/UL1585 (NEC or CEC). The voltage supply must be suitable for operation above 2,000 m
should the pressure switch be used at this altitude.
5.4.2 Requirements for electrical connection
■
Ingress protection of the mating connector corresponds to the ingress protection of the pressure switch.
■
Cable diameter matches the cable bushing of the mating connector.
■
Cable gland and seals of the mating connector are correctly seated.
■
No humidity can ingress at the cable end.
Parallel threads
Seal the sealing face

with flat gasket,
lens-type sealing ring or WIKA profile
sealing.
per EN 837
per DIN EN ISO 1179-2
(formerly DIN 3852-E)


Tapered threads
Wrap threads with sealing material
(e.g. PTFE tape).
NPT, R and PT