1. Prepare for mounting. Use the template provided in the cardboard box or in the Appendix at the end of this document to mark the four mounting holes and the cutting line for flush mounting your controller.

2. Complete the installation of the solar modules. If this GP-SB-PWM was purchased as part of a Go Power! Solar Power Kit, follow the Installation Guide provided. Otherwise, follow manufacturer’s instructions for solar module mounting and wiring.

3. Select wire type and gauge. If this GP-SB-PWM was purchased as part of a Go Power! Solar Power Kit, appropriate wire type, gauge, and length is provided.

Please continue to Section 7, “Operating Instructions.” If the GP-SB-PWM was purchased separately, follow the instructions included here. Wire type is recommended to be a stranded copper UV-resistant wire. Wire fatigue and the likelihood of a loose connection are greatly reduced in stranded wire compared to solid wire. Wire gauge should be able to sustain rated current and minimize voltage drop.

We recommend # for a 10A controller, and either #10 or #8 for a 30A controller.

Wire Strip Length

Strip wires to a length of approximately 3/8in or 10mm, as per strip gauge.

IMPORTANT: Identify the polarity (positive and negative) on the cable used for the battery and solar module. Use colored wires or mark the wire ends with tags indicating “Solar Positive and Negative (+ / -)”. Although the GP-SB-PWM is protected, reverse polarity contact may damage the unit.

1. Wiring the GP-SB-PWM. Wire the GP-SB-PWM according to the wiring schematic in Section 7. Run wires from the solar panel(s) and the batteries to the location of the GP-SB-PWM. Keep the solar panel(s) covered with an opaque material until all wiring is completed.

IMPORTANT: All wiring must be in accordance to National Electrical Code, ANSI/NFPA 70. Always use appropriate circuit protection on any conductor attached to a battery.

2. Connect the battery wiring to the controller first and then connect the battery wiring to the battery. Install a fuse or breaker no more than 18 inches from the battery connection.

3. Torque all terminal screws per the following: