When installing a mini split HVAC system, choosing the right disconnect box is crucial for safety and maintenance convenience. Disconnect boxes allow you to easily turn off power during servicing and protect your system from electrical faults. This article reviews some of the best mini split disconnect boxes available on Amazon, highlighting their features, durability, and suitability for mini split units. Below is a helpful summary table of selected top products tailored for different needs and preferences.
| Product | Amperage | Voltage | Type | Weatherproof Rating | Installation | Amazon Link |
|---|---|---|---|---|---|---|
| HQRP Non-Fusible A/C Disconnect Switch | 60 Amp | 120/240VAC | Non-Fusible, 2-Pole | Type 3R (Rainproof) | Outdoor | View More |
| JINDOUZI 2P 30Amp Fusible Safety Switch | 30 Amp | 110/240V | Fusible, 2-Pole | NEMA 3R | Outdoor | View More |
| ULXIOM Universal Disconnect Switch, IP66 | 63 Amp | 440VAC | 2 Phase, Enclosed | IP66 Waterproof | Outdoor | View More |
| MUJURUR 60 Amp 2 Pole Safety Switch Box | 60 Amp | 120/240V | Non-Fusible, 2 Pole | NEMA 3R | Indoor & Outdoor | View More |
| Diversitech Mini-Split Electrical Installation Kit | N/A (Kit) | 120/240V | Includes Disconnect Box + Accessories | Included Components | Indoor & Outdoor | View More |
HQRP Non-Fusible A/C Disconnect Switch – Outdoor Metal Box
The HQRP Non-Fusible Disconnect Switch is a reliable option designed for outdoor mini split installations. It supports 120/240VAC operation with a 60 amp rating suitable for most residential systems. Its metal box enclosure is built to Type 3R rainproof standards, offering protection against weather elements. The switch is pull-out style, providing clear visual ON/OFF status and safe power interruption. UL listed for safety compliance, it features a sturdy design ensuring durability. Ideal for single-phase, 3-wire wiring setups, this disconnect offers a straightforward, no-fuse option for quick power cut-off during servicing or emergencies.
JINDOUZI 2P 30Amp Fusible Safety Switch with Fuses
This JINDOUZI fusible disconnect switch provides added protection with built-in overload fuses, rated for 30A at 110/240V. It is designed for fast connect and disconnect operations, featuring an external hinge handle to quickly cut power during emergencies. The enclosed metal box meets NEMA 3R standards, making it dustproof and weather-resistant for outdoor use. Additionally, the switch includes anti-misoperation and lockable features to prevent unauthorized access, enhancing safety for residential and commercial mini split setups.
ULXIOM Universal 2 Phase Disconnect Switch – IP66 Waterproof
The ULXIOM universal disconnect switch stands out with its IP66 waterproof rating, offering superior dust and water protection compared to typical NEMA 3R units. Rated for 63 amps at 440VAC, it also fits 60 amp disconnect breaker needs, suitable for various mini split and industrial applications. The switch features waterproof connectors and a sealing ring around the lever to ensure safe operation in harsh environments. This makes it an excellent choice for outdoor or exposed installations where strong protection is required.
MUJURUR 60 Amp 2 Pole Safety Disconnect Switch Box
The MUJURUR safety switch offers a robust construction with galvanized steel casing coated to resist rust and corrosion, extending durability for outdoor and indoor installations. It meets NEMA 3R standards to handle severe weather like thunderstorms and hail. Designed for 60 amp maximum current, it provides ample wiring space, making installation and maintenance simpler and more organized. This disconnect is a solid choice for homeowners or contractors seeking a compact yet reliable switch box for their mini split systems.
Diversitech Mini-Split Air Conditioner Electrical Installation Kit
The Diversitech Mini-Split Installation Kit goes beyond just a disconnect box, including all essential components for hooking up mini split HVAC units. It features the electrical disconnect box, power whip, through wall sleeve, drain line adapter, and a 120/240v surge protector. Known for its quality and comprehensive coverage, this kit simplifies installation while ensuring electrical safety and efficiency. It’s ideal for DIYers or professionals who prefer a bundled solution encompassing all critical electrical connections for mini split systems.
Buying Guide For Mini Split Disconnect Boxes
Voltage and Amperage Ratings
Always verify the electrical specifications of your mini split HVAC system before selecting a disconnect box. The amperage rating must meet or exceed the system’s maximum current draw to ensure safe operation. Typical ratings include 30A and 60A at 120/240V for residential systems, with some units supporting higher voltages for commercial use.
Fusible vs. Non-Fusible Switches
Disconnect boxes come in fusible and non-fusible types. Fusible switches include fuses for circuit protection, providing a safeguard against overloads. Non-fusible switches rely on other circuit protections and provide a simple power disconnect. Choose based on your system’s needs and local electrical codes.
Weatherproof Ratings
For outdoor installations, selecting a box with a proper weatherproof rating is vital. NEMA 3R ratings ensure protection from rain and snow, while IP66 ratings offer superior dust and water resistance for harsher environments. Confirm the rating matches your installation site conditions.
Ease of Installation
Look for disconnect boxes designed with ample internal space for wiring and simple mounting options. Features like pull-out handles, quick connect/disconnect handles, and pre-drilled holes speed up installation and future maintenance.
Material and Durability
Durable enclosures such as galvanized steel or heavy-duty ABS plastic ensure long-lasting protection. Additional coatings for rust and corrosion resistance can improve lifespan, especially in outdoor or coastal areas.
Additional Kit Accessories
For convenience, some kits include extras like surge protectors, wall sleeves, wiring whips, and drain line adapters. These can streamline installation and ensure component compatibility.
Compliance and Safety Certifications
Products should be UL-listed or meet equivalent safety standards to comply with electrical codes and ensure safe operation.