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Physical
Reach regulation
Reference contains Substances of Very High Concern above the threshold
Eu rohs directive
Pro-active compliance (Product out of EU RoHS legal scope)
Mercury free
Yes
China rohs regulation
Product out of China RoHS scope. Substance declaration for your information
Rohs exemption information
Yes
Environmental disclosure
ENVPEP2310013EN
Circularity profile
N/A
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Specification Guide
Frequently Asked Questions
Why is there a voltage present at the terminals of the open contact of an IHP digital time clock.?
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The new generation programmable time switches (CCT15720, CCT15721, CCT15722, CTT15723, CCT15850, CCT15851,CCT15852, CCT15853, CCT16650 and CCT15652) integrate the O-crossing technique. This is an electronic procedure enabling the circuit to be opened at zero current, which enables the electromechanical contact to be operated off-load.
This is used to avoid the inrush currents of certain loads, particularly lighting.
This solution involves a low leakage current traveling through the electronics which generates residual voltage at the contact terminals, even when open. This can cause problems when very low loads (small relays, LEDs, etc.) are operated, as the receiver may be "held on" by this spurious voltage.
Note:
For this type of application (low load), a conventional electromechanical programmable time switch should be used.
This is used to avoid the inrush currents of certain loads, particularly lighting.
This solution involves a low leakage current traveling through the electronics which generates residual voltage at the contact terminals, even when open. This can cause problems when very low loads (small relays, LEDs, etc.) are operated, as the receiver may be "held on" by this spurious voltage.
Note:
For this type of application (low load), a conventional electromechanical programmable time switch should be used.