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MODEL TPS - INSTRUCTIONS AND TROUBLESHOOTING INFORMATION
11 OF 20
CPN 40615
7.4 FIELD GROUND TERMINAL
This terminal should be connected to an earth ground. The size of the conductor is based on National
Electric Code Table 250-95 for copper wire at 75 degrees C. (See Table #2 for recommended wire
sizes.)
7.5 MOUNTING
Install the rectifier so that the flow of air through the ventilators is not obstructed.
7.6 POWER CABLING FORMULAS
The following section may be used to calculate the wire size requirements for wire lengths in excess of
10 ft. (Refer to TABLE 3)
CMA= CROSS SECTION OF WIRE IN CIRCULAR MILS.
A = CURRENT DRAIN IN AMPERES.
LF = CONDUCTOR LOOP FEET.
MAX AMP= MAXIMUM ALLOWABLE CURRENT FOR A GIVEN VOLTAGE DROP (IN AMPERES).
AVD = ALLOWABLE VOLTAGE DROP.
K = 11.1 CONSTANT FACTOR FOR COMMERCIAL (TW TYPE)
COPPER WIRE (KS5482-01)
WIRE SIZE REQUIRED
CMA = (A*LF*K) / AVD
CURRENT CAPACITY (IN AMPS)
(SEE TABLE 3)
MAX AMPS = (CMA* AVD)/(LF*K)
8.0
ELECTRICAL CONNECTIONS & FIELD WIRING
Terminal blocks are provided for connecting the a.c. input and d.c. output. A ground wire must be
connected to the unit’s case ground.