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MC4-Connector Series — Weatherproof PV Connectors

2 Models available · DC Cables, Connectors & SPD

MC4-compatible connectors sealed to IP68 for reliable string mating in rain, dust and coastal environments, rated for 1500 V DC.

Model Number Breakdown

MC4Connector interface
1500VVoltage rating
  • IP68 sealing
  • 1500 V DC rating
  • Snap-lock mating
  • Wide cable compatibility
MC4-Connector DC Cables, Connectors & SPD

Specifications Range

All specifications and dimensions can be customized upon request

Key parametersModel Range
Rated current (A)30 A, 50 A
Rated Voltage1500 V
TypeMC4 connector
Key Spec30 A · 1500 V, 50 A · 1500 V
StandardIEC 62852

How It Works

The MC4 connector joins module leads and string cables with a snap-lock, weatherproof mating that carries the string current at up to 1500 V DC. Its contact design keeps resistance low and the seal keeps moisture out, preventing the oxidation and arcing that are the most common DC-side failure modes. Standard compatibility means the same connector mates across mixed-brand arrays.

Structure & Composition

The connector consists of a male and female housing, a crimped contact pin and a sealing ring that achieves IP68 protection when mated. A snap-lock latch prevents accidental disconnection, and the crimp is sized to the cable's conductor. The housing is UV-stabilised polymer for decades of outdoor exposure.

DC Wiring ChainStringPV1-F cableMC4SPDInverter1500 V DC, IP68 connectors, Type 2 surge protection
DC Protection (Fuse + SPD)StringSPDInverterDC in1500 V · IP68 · Type-2 SPD

Model Range

ModelTypeKey SpecStandardReference Price
QD-MC4-30MC4 connector30 A · 1500 VIEC 62852
QD-MC4-50MC4 connector50 A · 1500 VIEC 62852

Applications

1String connection
2Array to inverter
3Retrofit
4Harsh environments

Selection Guide

  • Choose the current rating (30 A, 50 A) to match the string's short-circuit current with margin.
  • Crimp with the correct tool and die for the cable cross-section to keep contact resistance low.
  • Verify mating compatibility with existing MC4-style connectors when extending or repairing strings.
Ampacity vs Cross-Section10 mm²Cross-section (mm²)Ampacity (A)

Frequently Asked Questions

Q

Are the connectors compatible with standard MC4?

Yes — they follow the MC4 interface and mate reliably with standard PV connectors.

Q

Why is IP68 important?

It seals the contact against moisture and dust, preventing the oxidation and arcing that cause DC-side failures.

Q

Can I crimp them without a special tool?

No — a proper crimp tool and die are essential for a low-resistance, reliable joint.

Instant Selection & Quote Calculator

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2 · Your price
EXW (FOB Qingdao)
$5
Range $4 ~ $58%)
Price Breakdown
Base price (interpolation)$5
× Product factor×1.0000
× Country factor×1.0000
× Copper-linked factor×1.0000
+ Options / accessories$0
Shipping quoted separately per destination port.

Complete equipment — no winding copper linkage

Reference prices are for estimation only and do not constitute a formal offer.

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All specifications and dimensions can be customized upon request

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