9 Accessories
The CPS SCA36/50/60KTL-DO/US-480 inverters have several optional
accessories that allow the inverter to support a wide range of real-world
applications.
9.1 Fuse Bypass Terminals (36/50/60 Kit, Product Code 1.0107.0131)
The Fuse Bypass Terminals allow for a reduction in the number of DC
homeruns by combining the PV source circuits outside of the inverter wirebox
and terminating with one pair of DC inputs to each of the three MPPTs. Note
that external over current protection for the PV source circuits is required
outside of the inverter. The MPPT positive inputs IN1+, IN2+, and IN3+ are
isolated from one another by design, although the MPPT negative inputs IN1-,
IN2-, and IN3- are combined via a common bus structure.
9.1.1 Bypass Input Terminal Instructions
1. A maximum #2AWG wire should be used to minimize stress on the
adapter.
2. Remove the wirebox cover (Figure 9-1).
3. Remove the plastic touch safe finger guards (Figure 9-2).
4. Use a No. 2 Phillips head screwdriver to install the Bypass
Terminals on each bus by fastening each terminal with the M4
screws. Torque value of 14.2 in-lbs (1.6 Nm) (Figure 9-3 and
Figure 9-4).
5. Use a No. 10 wrench to fasten the three pairs of DC input cables to
each of the Bypass Terminals at IN1+, IN2+, IN3+ (Figure 9-3) and
IN1-, IN2-, IN3- (Figure 9-4) with the M6 screws. Torque value of 53
in-lbs (6.0N.m.).
6. Reinstall the plastic touch safe finger guards. Torque value #
7. Reinstall the wirebox cover. Torque to 35.4 in-lbs (4N.m).
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