Wiring Tips for Connections and Connectors

ManualsBrandsREC ManualsSolar & Wind PowerTwinPeak 2 295W Solar Panel

Fig. : Radox connector fully closed

Fig. : Connection of Radox connectors showing ~ mm gap

Guide to Best Practice - Connections and Connectors

Ensuring the best performance of REC Peak Energy solar panels

Connecting panels can oen be the weakest link in a solar installation. It is here where the electrical

circuit is le exposed until the connectors are correctly aached. Over time, any weakness will be

exposed by the elements. REC Peak Energy panels have been designed for easy installation and

minimal maintenance, however there are a number of factors to watch out for when installing a

system to ensure an eﬀective and durable source of power.

Safety when working with connectors

Safety is paramount when working with electrical

connectors. Ensure these rules are followed at all times:

Do not work on live or load-carrying parts

Connections must not be disconnected under load

Protection from electric shock must be assured by

the end product and its user

Isolate the system from the grid before carrying out

any maintenance or repair work

During long-term or overnight storage, modules

must be protected against foreign materials and the

elements e.g., water, snow, dirt or other contamination

Connector types

Over the course of its lifetime, REC has used three

diﬀerent types of connector on REC Peak Energy Series

solar panels. These are:

Connecting and disconnecting

All connectors must be securely joined to each other

according to the following instructions:

To connect Radox connectors:

• Hold connectors by the grip areas on connector hoods

• Slide the male plug completely into the female socket

connector. The gap le should be about  mm

• Screw the plug into the socket until the gap is closed

completely and locked. The direction in which to lock

the connector is labeled on the connector hood

• Check that the connectors have engaged properly by

gently pulling the connectors apart

Note: Do not twist the connectors further as this

can break the internal ribs in the connector cap

Table. 

The connector types found on REC Peak Energy Series panels

Connector Type Usage

Radox

• REC production until

/

• Used with H&S junction

box

Hosiden

• MC connectable type

• REC production until

/

Multi Contact MC

• REC production from

/ to present

To disconnect Radox connectors:

• Hold the connectors at the grip areas on the connector

hood and unscrew until a gap of ~  mm is visible

• Pull the plug and socket completely apart

Changes in connector type have been made as part

of continued product improvement. When connected

properly, all connector types will provide long lasting and

secure connections.

Summary of content (3 pages)

PAGE 1
Guide to Best Practice - Connections and Connectors Ensuring the best performance of REC Peak Energy solar panels Connecting panels can often be the weakest link in a solar installation. It is here where the electrical circuit is left exposed until the connectors are correctly attached. Over time, any weakness will be exposed by the elements.
PAGE 2
To connect Hosiden & MC4 • Align latches of the male plug with receptacles of the female socket • Insert the plug into the socket until a firm click is heard • Check the connectors have engaged correctly by gently pulling them apart Fig. 3: Connection of MC4 type connector (Multi-Contact MC4 or Hosiden) Cutting of cables and re-crimping connectors Some regions have specific regulations regarding the compatibility of connectors.
PAGE 3
Cable management Protect cables from any damage through friction or stress. Using a cable raceway or conduit is a good method of providing this protection.