Electrical Mounting; Requirements For Electrical Connection - WIKA PSD-4-ECO Mode D'emploi

5. Commissioning, operation
Sealing variants
Parallel threads
Seal the sealing face  with flat gasket,
lens-type sealing ring or WIKA profile
sealing.
Tapered threads
Wrap threads with sealing material
(e.g. PTFE tape).

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.
■
WIKA operating instructions, model PSD-4-ECO

per EN 837
NPT, R and PT

per DIN EN ISO 1179-2
(formerly DIN 3852-E)
EN
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