because timing is everything
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Safety Warnings
RESTRICTED ACCESS LOCATION
The ITR should be installed in a Restricted Access location, accessible only using a
lock and key or other means of security.
INSTALLATION ENCLOSURE
The ITR should be installed on a DIN rail in an enclosure which acts as a Fire
Enclosure and an Electrical Enclosure.
INSTALLATION PRACTICE
The ITR should be installed by suitably qualified personnel.
Wiring, cable entries, conduit entries, knock-outs or glands should be installed in
accordance with local wiring regulations.
HAZARDOUS VOLTAGE. Disconnect before working on product
DC supply voltage up to 300V.
DUAL SUPPLY. Disconnect both supplies before working on the product
Hazardous voltage may be present on DC supply and
PR-
,
HV-SW-,
HV-SW+
and
PR+
terminals.
DISCONNECT DEVICE(S)
Each Hazardous Voltage circuit which connects to the ITR shall incorporate a
readily accessible disconnect device installed externally to the ITR.
Disconnect devices shall have contact separation of at least 3mm.
HAZARDOUS VOLTAGE. Stray conductors or loose connections.
Provide insulation and strain relief on all Hazardous Voltage terminations to
protect against electric shock hazard.
OVERCURRENT PROTECTION
–
HV MOSFET
Circuit from an external supply to HV MOSFET connections on the ITR shall be
protected with an external 300 Vdc fuse rated at less than or equal to 1A.
OVERCURRENT PROTECTION - POWER
Circuit from an external supply to the PWR connections on the ITR shall be
protected with 300 Vdc an external fuse rated at less than or equal to 1A.
PROTECTIVE EARTH
The unit must be safety earthed whenever it is powered on, using the GND
terminal as pictured above. The cable cross section must be equal to or greater
than 0.75 mm
2
(18 AWG).