Renogy 175W Flexible wiring diagram

The RNG-175DB-H sheet specifies 175 W, 20.3 V Vmp, 8.75 A Imp, 24.9 V Voc and 9.65 A Isc at standard test conditions. This is the original electrical version, documented in a Renogy-authored sheet archived by NaradiHned. A newer G2 download retains the model name but changes voltage, current and fuse limits; its values are not used here. See exact-model datasheet, page 2.

The frameless panel measures 1504 × 673 × 2 mm and weighs 2.8 kg. Its thin laminate needs a supported installation; flexibility is not permission to crease it or use it as a loose roof covering.

Connect the marked positive and negative leads through a solar charge controller, never directly to a house battery. The sheet gives 12 AWG leads, 150 mm positive and 450 mm negative. Match locking extension connectors to the fitted hardware and route cables without pulling on the junction box. Keep connectors accessible for inspection and isolate the circuit before disconnecting them.

Series connection adds voltage; parallel connection adds current. Check both against the controller, wiring and protection design. For a 12 V battery, confirm the controller can operate with this panel's hot-weather working voltage and cold-weather open-circuit voltage.

The exact sheet gives −0.31%/°C Voc temperature coefficient, 600 V maximum module-system voltage, and 20 A maximum series fuse rating. Calculate the complete string's cold Voc from the actual lowest design temperature and required margins. The module-system rating does not establish a controller input limit.

The fuse figure is the module's protection ceiling, not a mandatory fuse size for every layout. Assess parallel-string reverse current and cable capacity. Crimp's terminal-current planning value and the connector's separate rating are not substitutes for that calculation.

Renogy's current family installation manual, section 2.1.3, printed page 55, calls for a compatible structural adhesive method, open short edges for drainage/heat escape, 5–10 mm between panels, and 72 hours curing protection. For corrugated roofs it requires at least six adhesive contact lines; otherwise this mounting method is unsuitable.

The same guidance limits the actual installed bend angle to 30°. A much larger advertised handling bend is not an installed-roof design limit. Confirm adhesive compatibility with the roof and actual panel revision before bonding, provide ventilation, and keep walking loads and sharp edges away from the laminate. Set battery charging parameters before connecting PV, then inspect attachment and output after commissioning.