Kesterline MC4 solar connector

// DC Connection Systems

Photovoltaic DC Connection Systems

MC4 connectors and H1Z2Z2-K solar cable for string, inverter and junction-box wiring — certified for EU, UK, AU and US.

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// Product Range

Cable & Connector Range

Field-proven connector and cable pairs for residential, C&I and utility-scale arrays.

Kesterline MC4-Evo2 field connector detail
{m.code} connectorIEC 62109
KS-AC4
MC4-Compatible Field Connector
1500 V · 30 A
4/6 mm²
IP IP68
Enquire
{m.code} connectorIEC 62109
KS-AC4E2
MC4-Evo2 Connector
1500 V · 40 A
4/6/10 mm²
IP IP68
Enquire
{m.code} connectorTÜV 2PfG 1169
KS-BR4
Y-Branch Adapter (1 to 2)
1500 V · 30 A
4 mm²
IP IP67
Enquire
{m.code} connectorEN 50618
KS-PV4
H1Z2Z2-K Solar Cable
1.5 kV DC
4/6/10 mm²
IP XLPE
Enquire

// Certification Matrix

Certification Matrix

Connector samples undergoing salt-mist and pull-test inspection in a lab
ModelMarketStandardCertificate No.Valid to
KS-AC4EU / UKIEC 62109-1 · CEKA-62109-22012028-05
KS-AC4USUL 1741E52748-UL2027-11
KS-AC4E2EU / DETÜV 2PfG 2419R-2419-6632029-01
KS-BR4EUTÜV 2PfG 1169R-1169-4022028-08
KS-PV4EUEN 50618 · TÜV 2PfG 2642R-2642-1182029-03

// Compatibility

Compatibility Matrix

Confirm which cable, component or inverter each connector pairs with before you order.

Solar string connector being fitted to a junction box in the field
KS-AC4E2
4–10 mm² solar cable · any MC4-Evo2 string
Protocol: DC (non-wired)
30 A continuous · derate above 70°C
KS-PV4
KS-AC4 / KS-AC4E2 terminals + standard MC4
Protocol: DC (passive)
No OCPP — cable only
KS-BR4
2× KS-AC4 parallel strings
Protocol: DC (non-wired)
Balance current ≤ 30 A per branch
KS-JBOX
4-string input · fuse + SPD slot
Protocol: Modbus (RTU, optional)
IP65 · tool-free lid · 40 A max
Kesterline connector production line

// Factory & Capacity

Factory & Capacity

12 000 m² CNC and injection-moulding plant with in-house QC. Every contact batch is pull-tested and a sample is salt-mist checked per IEC 61701.

12 000 m²
plant area
24 QC
dedicated inspectors
2014
founded

// Throughput

Throughput in Numbers

8M+
connectors per year
82%
export share
7
certification schemes
20–35
days lead time

// Installer Zone

Installer Downloads

Wiring guides, certificate packs and fault-code maps for the current connector range — available on request with your quote.

Installation
KS-AC4E2 Wiring & Assembly Manual (PDF)
Request
Certificate
IEC 62109-1 / UL 1741 Certificate Pack (PDF)
Request
Reference
Solar Cable Derating Table (H1Z2Z2-K)
Request
Fault code
Junction-Box Fault / Error Code Map
Request

// Request a Quote

Request a Quote

Tell us the SKU, quantity and market — a distributor account manager responds within one working day.

24 hresponse, one working day
7certification schemes