PV Combiners, Disconnects, Overcurrent Protection & Wiring

21 products
MidNite Solar 12 String 3 Output Combiner For Multi-MPPT Solar Inverters - NEMA 3R Outdoor Rated

MidNite Solar 12 String 3 Output Combiner For Multi-MPPT Solar Inverters - NEMA 3R Outdoor Rated

12-string combiner with three independent outputs for multi-MPPT inverter configurations
$447.30
 Out of Stock
Stäubli Evo-2 Branch Plug and Socket Set for Paralleling 2 PV Strings, Branch Connectors for MC4-Evo 2 Connectors

Stäubli Evo-2 Branch Plug and Socket Set for Paralleling 2 PV Strings, Branch Connectors for MC4-Evo 2 Connectors

Conveniently parallels two strings of solar panels with quality weatherproof connections
$19.92
High quality photo of the Staubli - 32.0716-32.0717 - MC4 Sealing Caps - Plug Front Angled View. Photographed by Current Connected

Stäubli PV-SVK4 & PV-BVK4 Sealing Caps, 5 Pairs for Protecting Disconnected MC4 and MC4-Evo 2 Connectors from Water Damage

Use Stäubli's MC4 and MC4-Evo 2 Sealing Caps to prevent water from getting into disconnected solar panel connectors
$15.00
High quality photo of the Midnite Solar - MNPV3-6-12 - Product Group. Photographed by Current Connected

MidNite Solar MNPV3 / MNPV6 / MNPV12 Combiner Breaker Box

Conveniently protect and combine multiple solar array strings
$95.44 – $245.19
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High quality photo of the IMO DC Disconnect Rooftop Isolator Switch 4 Pole - 2 String Front view. Photographed by Current Connected.

IMO 600V DC Disconnect Rooftop Isolator Switch, Solar Panel Disconnect for Rooftop or Ground Mount PV

$119.38 – $354.14
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Aptos AC Bus Cable 2.2m-4.2m 12G AWG Cable for Aptos MAC-400 and MAC-800 Microinverters

Aptos AC Bus Cable 2.2m-4.2m 12G AWG Cable for Aptos MAC-400 and MAC-800 Microinverters

The Aptos Trunk Connector for Microinverters
$315.40 – $553.85
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Aptos AC Bus End Cap, Sealing Cap for Aptos MAC-400 and MAC-800 Microinverters and Trunk Cable

Aptos AC Bus End Cap, Sealing Cap for Aptos MAC-400 and MAC-800 Microinverters and Trunk Cable

The Aptos Trunk cap for the end of the Aptos Trunk Cable
$9.65
High quality photo of the Midnite Solar - MNEPV2 - 150Vdc Din-Rail Mount Polarized Circuit Breaker 2A - Angled View. Photographed by Current Connected

MidNite Solar MNEPV 2A-100A 150Vdc Din-Rail Mount Polarized Circuit Breaker for Batteries and Small Solar Arrays

The smallest MidNite Breaker
$17.86 – $45.38
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High quality photo of the Midnite Solar - MNEPV7-300-1PP - MidNite Solar MNEPV 300Vdc Din-Rail Mount Polarized Breakers - 7A. Photographed by Current Connected.

MidNite Solar MNEPV-300 7A-50A 300Vdc Din-Rail Mount Polarized Breakers, Single Pole, 10kAIC

MidNite Solar's Polarized Breaker for up to 300VDC!
$26.06 – $35.26
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MidNite Solar MNEPV 15A-20A Circuit Breakers, 600Vdc Polarized Double Pole Breaker, DIN Rail Mount PV Breakers

MidNite Solar MNEPV 15A-20A Circuit Breakers, 600Vdc Polarized Double Pole Breaker, DIN Rail Mount PV Breakers

Perfect for MNPV6 / MNPV12 Combiner boxes - Din rail mount
$57.13
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High quality photo of the Midnite Solar - MNTRANSITION - Transition Box - Open and Closed Views. Photographed by Current Connected

MidNite Solar MNTransition Box, Transition from PV Wire to Standard Wire, Up to 1000Vdc and 4 PV Strings, Includes Ground Busbar

Transition from PV Wire to Standard Wire easily with the MNTransition!
$136.94
MidNite Solar AC Disconnect Micro Combiner

MidNite Solar AC Disconnect Micro Combiner

Combine up to three strings of 240V micro inverters in this combiner!
$240.13
 Out of Stock
MidNite Solar AC/DC Surge Protection Devices, Up to 300Vac or 600Vdc SPD

MidNite Solar AC/DC Surge Protection Devices, Up to 300Vac or 600Vdc SPD

Type 1 surge protection for indoor and outdoor use.
$98.31
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MC4 Combo With Staubli Connectors and Staubli Crimper

10 AWG Solar MC4 Connector PV Installation Wiring Bundle, Includes PV Wire, MC4 Connectors, and Crimping Tool

Get everything you need to complete your solar projects!
From $371.33
 View Kit
10 AWG Solar PV Cable, Bulk 500Ft Spool of 103 Strand Red or Black XLP PV Wire, RHW-2 and USE-2 Applications

10 AWG Solar PV Cable, Bulk 500Ft Spool of 103 Strand Red or Black XLP PV Wire, RHW-2 and USE-2 Applications

Bulk red and black spools of PV wire for DIY solar installations
$328.23
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Solar Inline Fuses

Solar Inline Fuses for Quick Connectors, 15A 1000VDC Rated with Replaceable Fuse for Protecting Solar Arrays and Equipment

Quick connect with MC-4 connectors to protect your system!
$15.99
High quality photo of the Staubli - KITMC4-5PK - MC4 Connectors 5 Pack Full Kit View photographed by Current Connected

Stäubli Classic MC4 & MC4-Evo 2 Connectors, Rated for 1100V and 35A, 5 Pair Bundle, Options Support 4.7mm to 8.8mm Wire Jacket Diameter

Stäubli's PV connectors, available in Original MC4 and MC4-Evo 2, has 3 sizes for varying PV wire diameters for a secure, watertight connection
$21.55 – $27.31
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MC-4 Solar Controller Cables

Pre-Crimped Solar Controller Cables with MC4 Connectors, Raw on Other End, 103-Strand 10 AWG XLP PV Wire, Positive/Negative Set up to 150ft

Connection cable for wiring solar panels to your charge controller.
$9.99 – $339.99
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MC-4 Solar Extension Cable

Pre-Crimped Solar Extension Cable, Crimped on Both Ends with MC4 Connectors, 103-Strand 10 AWG XLP PV Wire, Positive/Negative Set up to 150ft

Lengths from 1-150 ft
$4.99 – $339.99
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Solar PV Cable

Raw Ended Solar PV Cable, 103-Strand 10 AWG XLP PV Wire, Positive/Negative Set up to 150ft

Raw cable ends for you to customize as needed
$25.99 – $335.99
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MC-4 T-Branch Connectors

Solar Quick-Connect T-Branch Connectors, 2-to-1 or 3-to-1 Connectors for Parallel Connections in Solar Arrays, Rated for 10 AWG PV Wire

Simplify system expansion by effortlessly adding additional panels
$11.89 – $13.87
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When selecting combiners, it’s important to consider the array configuration, string quantity, maximum system voltage, fusing requirements, and installation location accessibility for code compliance.

The PV combiners and disconnects category provides equipment that consolidates multiple solar panel strings into single circuit outputs while providing overcurrent protection and safe disconnection points.

Quality combiner boxes feature weatherproof enclosures, individual string fusing, and accessible layouts that simplify connections and maintenance in the solar array. Modern combiners include integrated disconnect switches meeting NEC (National Electric Code) requirements for accessible PV (Photovoltaic) array isolation during system servicing.

Combiner options include non-fused boxes for systems using external protection, fused combiners with individual string circuit protection, and combiners with integrated disconnect switches providing both consolidation and isolation.

String capacity ranges from 2-string residential units to more than 12 string commercial installations. NEMA-rated enclosures provide weather resistance for rooftop or ground-mount installations.

Featured brands include MidNite Solar and IMO, and specialized manufacturers offer UL-listed products. Key specifications include number of input strings, maximum input voltage (typically 600V or 1,000V DC), disconnect switch amperage, and enclosure ratings for environmental protection.

Surge protection options safeguard against lightning-induced voltage spikes. Ground fault detection integrates with some models for enhanced safety monitoring.

Browse the PV combiners and disconnects category below to find array consolidation and protection equipment for safe solar installations.