SCC MPPT 3KW User Manual

7
Install the unit to the wall by screwing four screws.
Refer to right chart.
3.4 Power Connection
Wire size
The four large power terminals are sized for 14 - 2 AWG (2.5 - 35
mm
2
) wire. The terminals are rated for copper and aluminum
conductors. Use UL-listed Class B 300 Volt stranded wire only. Good
system design generally requires large conductor wires for solar module and battery
connections that limit voltage drop losses to 2% or less.
Minimum Wire Size
The table below provides the recommended minimum wire size allowed for the charger.
Wire types rated for 75°C and 90°C are listed.
Recommended wire size:
Typical Amperage
Wire Type
75°C Wire
90°C Wire
60A
Copper
4 AWG (25 mm
2
)
6 AWG (16 mm
2
)
Aluminum
2 AWG (35 mm
2
)
4 AWG (25 mm
2
)
Overcurrent Protection and Disconnects
CAUTION: Circuit breakers or fuses must be installed in both battery and solar
circuits.
The battery circuit breaker or fuse must be rated to 125% of the maximum current or
more. The recommended breaker/fuse rating for use with the charger is listed in the
below table.
Recommended breaker rating:
Minimum battery circuit breaker/fuse rating
1.25 x 60 Amps = 75.0 Amps
A disconnect is required for the battery and solar circuits to provide a means for
removing power from the charger. Double pole switches or breakers are convenient for
disconnecting both solar and battery conductors simultaneously.

SCC MPPT 3KW Specifications

General

Brand	SCC
Model	MPPT 3KW
Category	Controller
Language	English