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Control Unit - 904
Brand: WIKA Instruments Ltd.The WIKA inductive contact device is a contact-free device. Basically, it consists of an initiator, located on the nominal value pointer, including its fully potted electronics and mechanical construction with a movable control vane.
The control vane is moved by the instrument pointer (nominal value pointer).
Features- 904.28 for 1 inductive contact, output: 1 x SPDT.
- 904.29 for 2 inductive contacts, output: 2 x SPDT.
- 904.30 for 1 inductive contact, safety equipment (SN or S1N), output:1 x fail-safe relay output; 1 x.
- type of protection: EEx-ia IIc.
- electrical ratings: AC 250 V / 2 A / 500 VA (1 A for typ 904.30).
- on delay and drop out delay: 20 ms.
- ambient temperature: -20.. +60 °C.
- ingress protection IP 20.
- control units with DC 20.. 30 V power supply.
- Model 904.31 - 1 relay output.
- Model 904.32 - 2 relay output.
- Model 904.33 - 1 fail-safe relay output.
