Electrical Installation - ABB COMMANDER 351 User Manual

5.2 Electrical Installation

Refer to the Template Applications table and Output Sources table on the rear fold-out to determine the input and
output connections to be made.
Warning.
• The COMMANDER 351 is not fitted with a switch therefore a disconnecting device such as a switch or
circuit breaker conforming to local safety standards must be fitted to the final installation. It must be fitted
in close proximity to the instrument within easy reach of the operator and must be marked clearly as the
disconnection device for the COMMANDER 351.
• Remove all power from supply, relay and any powered control circuits and high common mode voltages
before accessing or making any connections.
• Use cable appropriate for the load currents. The terminals accept cables up to 14AWG (2.5mm
• The COMMANDER 351 conforms to Insulation Category 2, Pollution Degree 2 (EN61010–1).
• All connections to secondary circuits must have basic insulation.
• After installation, there must be no access to live parts e.g. terminals.
• Terminals for external circuits are for use only with equipment with no accessible live parts.
Caution.
• If the COMMANDER 351 is used in a manner not specified by the Company, the protection provided by the
equipment may be impaired.
• All equipment connected to the COMMANDER 351 terminals must comply with local safety standards
(IEC 60950, EN61010–1).
Note.
• Always route signal leads and power cables separately, preferably in grounded metal conduit.
• It is strongly recommended that screened cable is used for signal inputs and relay connections. Connect
the screen to the ground stud – see Fig. 5.4.
This equipment is protected through double insulation (Class II).
5 INSTALLATION...
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