Vanguard CT-7000 S2 - Manual (Page 14)

CT-7000 S2 USER’S MANUAL REV 2
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3.0 OPERATING PROCEDURES
3.1 Cable Connections
3.1.1. Contact Cable Connections
A typical contact cable connection to a circuit breaker is shown in Figure 3. Red and black clips
are connected across the circuit contact phases A, B, and C. A typical circuit breaker with series
contacts is shown in Figure 4.
NOTE
It is advisable to ground one side of the contacts for most testing purposes. If a
breaker is floating or un-grounded, ensure that the contact channel inputs are
protected against static discharge.
Figure 3. Typical 3-Phase Circuit Breaker Connections