Multicontact (MC) Solar Panel Interconnect Cables & Adaptors

CONNECTING YOU TO NATURE’S POWER

MC Cables for Solar Panel Interconnections

MC cables are used on nearly all new panels in the 100 watt+ range except for those specifically made for off-grid/RV/Marine applications, which still use the standard junction box, such as the Kyocera KC130.

The latest NEC code requires the MC4 type (Solarline 2) latching connectors, as shown in the picture. Nearly all new solar panels use the MC4 connectors, there are only a few panels still being sold that use the MC3 type connectors - most of those were manufactured prior to 2008, but there are still some in the supply pipeline, and quite a few older systems that used them.

There are also a few of the newer panels that use the Tyco Solarlok type connectors and cables. Special order only, 3-5 days.

All MC cables are made with #10 AWG stranded UL/NEC approved RHW-2/RHH (USE-2) sunlight resistant wire.

If you are using a solar panel with MC type connectors on them for RV, marine, or other application where you need to tie into a charge controller, junction box, or array combiner, just buy ONE extender cable that is twice the total length needed and cut it in half. ** Do NOT cut the connector off the end of the solar panel cable, as that will void the manufacturers warranty.

Polarity: We cannot find any "official" notes on polarity, but all the modules we have seen use the tapered looking end as the Positive (+) and the other as the Negative on panels that come pre-wired with MC connectors.

Sample of parallel network strings

See below for a series/parallel wiring arrangement using branch connectors.

● diagrammatic sketch for parallel connection Below

　

Youtube video with general explanation of how solar wiring works

MC4 connector for Solar panel male & female

TUV certified, brand new, water /weather proof rubber seal that can ensure excellent electrical contact for life time service. The metal pin is made from high quality machined copper and sealed tip (compare to the cheap sheet metal pin) that can ensure excellent electrical contact for life time service. Built in press tabs for easy disconnect, no tool is needed. 30A max load. Save money, make your own connectors. No special tool needed, just crimp them on wire ends

MC4 Crimper/Solar Crimping Tool Kits for 2.5-6.0mm2 MC3/MC4 connectors,

MC4/MC3 Crimp Tool Crimping Connector Solar PV Crimper + cable cutter +Mc4 connector

30mm max cutting and 0.9-6.0mm2 stripping function.

Feature:

Five star Solar Crimping Tool is High-precision ratchet mechanism for complete crimps;0.8 metric tons pressure at crimping face, with minimal hand effort; Interchangeable high-precision crimping die set; Top German quality.

Solar Crimping Tools Parameters(MC3 and MC4 type):
Capacity:2.5-6mm2
AWG:26-10AWG
Length:270mm
Weight:0.74Kg

Stripper Parameters:

For cutting wire,30mm max. Stripping wire0.9-6.0 mm2
Automatic rebound spring
No damaging of the conductor core
Length: 165mm
Weight: 0.16Kg

MC4/MC3 RATCHET CRIMPER

For 2.5mm2(14AWG), 4mm2(12 and 11AWG), and 6mm2(10AWG) PV TUV solar cable

Interchangeable die

Made of carbon steel with Elastomeric handle for a Non-slip grip

Actual crimping from this crimper that is tight and snug-fit.

Crimping tool designed for heavy duty use.
MC4 dies sets are tempered cast iron designed to withstand heavy duty work.

Preferred tool for solar installers.

IMPORTANT:
This crimper has been tested with 3 different crimping size cables 20 times each, and every crimp retained its curling grip to the cables and not deface the pins.

MC3 connector pair (male and female) used for solar panel connection. It is TUV approved, UL94-V0 flame class certified with water /weather proof rubber seal. The metal pin is made from high quality machined copper and sealed tip.
30A max load. 1, 10, or 100 pcs quantity. Drop down menu.

QTY and Shipping Options

100 pairs MC4 connector for Solar panel male & female Save money, make your own connectors. No special tool needed, just crimp them on wire ends.

MC4 "U" F/M/M Solar Panel Cable Branch Connector

MC4 "U" M/F/F Solar Panel Cable Branch Connector

MC4 "Y" F/M/M Solar Panel Cable Branch Connector

MC4 "Y" M/F/F Solar Panel Cable Branch Connector

MC4 "T" F/M/M Solar Panel Cable Branch Connector

MC4 "T" M/F/F Solar Panel Cable Branch Connector

MC3 "U" F/M/M Solar Panel Cable Branch Connector

MC3 "U" M/F/F Solar Panel Cable Branch Connector

MC3 "Y" F/M/M Solar Panel Cable Branch Connector

MC3 "Y" M/F/F Solar Panel Cable Branch Connector

MC3 "T" F/M/M Solar Panel Cable Branch Connector

MC3 "T" M/F/F Solar Panel Cable Branch Connector

8 Foot MC3 Extension Cable Male/Female

8 Foot SL1 MC3 solar panel wiring extender cable.

Adaptor Cable, Male Solarline 1 to Female Solarline 2

MC3 Male to MC4 Female Adaptor Cable, Male SL1 to Female SL2

50 Pairs Solar MC3-MC4 Adapter Connector with 10cm solar cable(12AWG/10AWG),USA Standard, Factory Direct, TUV certificated

Twenty pairs of MC4 solar panel cable Y branch connectors

One is Female/Male/Male, the other is Male/Female/Female
, connect 2 solar panels in parallel, TUV certified,brand new

water /weather proof rubber seal that can ensure excellent electrical contact for life time service

Adaptor Cable, Male MC4 to Female MC3

Solar Panel Adaptor Cable, Male MC4 SL2 to Female MC3 SL1

6 Foot MC4 Extender Cable Male/Female

6 Foot MC4 or 2meters long, 4mm 12 awg, Extender Cable Male/Female, the larger quantities are 2m long

10 Foot MC4 Extender Cable Male/Female

10 foot M/F MC4 solar panel interconnect cable

30 - 32 Foot MC4 Solarline 2, Extender Cable Male/Female

If you order 1pc the lengh is 30 foot MC4 extender cable M/F, if you order 10 or more pcs, the lengh is 10 meters or 32.8ft each

50 Foot MC4 Solarline 2, Extender Cable Male/Female

50 Foot MC4 (SolarLine 2) Extender Cable

100 Foot MC4 Solarline 2 Extender Cable Male/Female

100 foot MC4 solar panel wiring extender cable

50 foot MC3 Generation 1 Multicontact cable M/F

30 foot MC3 Generation 1 Multicontact cable M/F

75 foot MC3 Generation 1 Multicontact cable M/F

100 foot MC3 Generation 1 Multicontact cable M/F

Multibranch MC4 Connectors, Latching 1 pair 1f2m and 1m2f

MC4 Latching branch Connectors for Paralleling 2 Solar Panels

SolarLine 2 Multibranch MC4 Connectors, Latching

These are used to parallel and/or to series-parallel multiple MC4 connections, such as cables from solar panels.

For most panels you will need a pair - one of each type to parallel each pair of PV panels.

Quantity discounts available in drop down menu below.

Multibranch MC3 Connectors 1 pair 1f2m and 1m2f

MC3 MC3 T Branch Connectors 1 PAIR TUV

Rated IP-67 TUV Standards for solar panel branch connection

See detailed specs below:

Rated voltage 1000VDC
Rated impulse voltage 8000V
Rated insulation voltage 6000V
Rated Amp current 30A Contact material
Degree of protection IP-67
Protection Class Class II
Pollution Degree 2
Temperature Range -40 to +145 degrees
Flame class UL94-V0
Insulation material PPO/TPE/PA

Rated IP67 for water resistance. Proven and approved by UL and TUV standards

This MC3 T branch connector is rated as IP67. IP (Ingress Protection) ratings the first numeral refers to the level of dust resistance and the second numeral refers to the level of water resistance. The range IP67 rating means that the device is totally protected from dust and can be submerged in water to 1 m (3ft) for up to 30 minutes without any leakage. The ratings were set by the International Electro technical Commission.

TUV Type Approved, UL Listed

30 inch MC Solarline 1, pigtail set for J-box

MC3 cable to Terminal lug adaptors

All About Using MC Cables in Solar Electric Systems

Using MC cables in solar electric systems

MC Cable Clips - Bag of 25

Cable Clips

Disconnect Tools for MC4 Connectors (set of 2)

Recommended to unlatch MC4 connectors

Kellys Cable Manager Kit - Includes (50) Pcs - Each order includes a total of (30) 1" clips, (10) 1.5" clips and (10) 3" clips. For a total of 50 cable clips

Shipping Options bag of 15 clips

Multicontact (MC) Solar Panel Interconnect Cables & Adaptors

CONNECTING YOU TO NATURE’S POWER

MC Cables for Solar Panel Interconnections

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