ZJ Beny BYT Series DC Isolator Switch, 1200V, 32A

The ZJ Beny BYT-32 is a high-voltage DC isolator switch designed for safe disconnection of solar PV systems on the DC side. Rated at 1200V and 32A, this unit meets the rigorous AS 60947.3:2018 DC-PV2 standards, making it suitable for both residential and commercial solar installations across Australia. Housed in a durable, IP66-rated enclosure with a weatherproof isolator cover, it provides long-term resistance to dust, water, and extreme conditions.

Engineered for inverter-side isolation, the BYT-32 features patented arc-extinguishing technology that disconnects high-voltage DC safely and reliably within 3ms. It is designed with installer safety, code compliance, and wiring efficiency in mind. As a trusted solar DC isolator switch, the BYT-32 simplifies installation, ensures safety, and extends the lifespan of your PV system. For further technical reference, consult the ZJ Beny DC isolator datasheet or ZJ Beny isolator installation guide.

ZJ Beny ZJ-BYH-32 Overview

• Voltage Rating: 1200V DC
• Current Rating: 32A
• Pole Configuration: 4-pole, true DC isolator
• Mounting: Base-mount mechanism with 2× M25 conduit entries
• Certifications: AS 60947.3:2018 DC-PV2, CE, TUV, SAA
• Operation Time: Arc disconnected in <3ms
• Compatibility: Suitable for leading inverter brands and configurations

Key Features

• High Voltage Rating: Handles up to 1200V for larger PV arrays and higher efficiency inverters.
• Fast Arc Suppression: Advanced arc-extinguishing design with 3ms shutdown time.
• Outdoor-Ready Enclosure: IP66 rating ensures full protection from rain, dust, and UV exposure.
• Built for Compliance: First DC isolator certified to AS 60947.3:2018 DC-PV2.
• Universal Mounting Options: Versatile layout and conduit entry points make installation flexible.
• Lockable Safety Switch: Clear ON/OFF position markings with padlock hole for service isolation.

Main Benefits

For System Designers & Engineers

• Simplifies compliance with Australian standards.
• Backed by third-party test certifications and detailed ZJ Beny DC isolator datasheet.
• Rated for high-voltage configurations, supporting larger string designs.

For Solar Contractors & Installers

• Faster and safer installation with well-spaced terminals and clear layout.
• No need for additional weatherproofing thanks to integrated isolator cover.
• Non-polarized layout reduces wiring error risks and saves install time.

For Residential & Commercial Users

• Built to last with thousands of mechanical and electrical operations.
• Ensures clean and safe shutoff of DC supply during maintenance.
• Compatible with major solar isolator switch brands and inverters.

Operation Life

The ZJ Beny BYT-32 DC isolator switch is engineered for durability and longevity, making it a dependable component in any solar installation. Its mechanical life is rated at 15,000 ON/OFF cycles, meaning the physical switch mechanism can operate thousands of times without wear or degradation. This makes it ideal for systems requiring regular maintenance or periodic disconnection.

In addition to its mechanical endurance, the BYT-32 boasts an electrical life of 1,000 cycles under full DC load (up to 1200V DC, 32A). This rating confirms the switch’s ability to safely disconnect high-voltage current multiple times during real-world use, such as shutdowns for maintenance, fault isolation, or inverter servicing.

These performance figures demonstrate the robust internal construction and arc-extinguishing technology embedded in the BYT-32. The isolator’s fast arc suppression mechanism – capable of quenching arcs in under 3 milliseconds – significantly extends the life of the contact points. Whether used in residential rooftops, commercial installations, or high-demand hybrid setups, the BYT-32 provides long-term, reliable service with minimal degradation over time.

For system designers and installers, this ensures the isolator will remain a trusted point of disconnection for years, supporting safe operation and maintenance procedures in compliance with Australian and international standards.

Environmental Ratings

Built for the challenging conditions often found in rooftop solar environments, the ZJ Beny BYT-32 features exceptional environmental resistance and weatherproofing characteristics.

IP66 Enclosure Rating: This isolator is fully dust-tight and protected against powerful water jets from any direction. It can be safely installed outdoors without requiring any additional enclosure, even in areas exposed to storms or hosing.

Material Composition: Constructed from flame-retardant and UV-stable polycarbonate, the BYT-32 resists cracking, fading, or deforming under intense sunlight or fire hazards – crucial for long-term reliability in Australian summers.

Temperature Ratings:

• Operating Temperature: -40°C to +85°C
• Storage Temperature: -40°C to +85°C

These wide thresholds ensure the isolator can withstand the thermal extremes of remote outback regions, coastal zones, or high-exposure rooftops.

Integrated Breather Valve: The unit includes a breather valve to equalize internal pressure and prevent condensation inside the enclosure – a common failure point in cheaper isolators. This feature preserves insulation integrity and avoids internal moisture damage over time.

Together, these specifications make the BYT-32 especially well-suited for Australian conditions, from dusty inland sites to humid coastal zones. Installers can confidently deploy this isolator in virtually any outdoor PV system without needing supplementary covers or housing. The rugged build and advanced environmental protections ensure consistent performance and extended system uptime – even in the harshest locations.

Caveat: The product description and datasheet on this page may not be the most updated version. Please refer to the user manual coming with products if there are conflicts.

ZJ Beny

ZJ Beny (Zhejiang Benyi Electrical Co., Ltd.) is a global leader in solar DC protection solutions, known for manufacturing certified DC isolators, circuit breakers, and solar safety devices. As one of the most trusted ZJ Beny isolator suppliers in Australia, their products are widely deployed in rooftop PV, commercial systems, and utility-scale installations.

ZJ Beny’s DC isolators, including the BYSS, BYH, and BYT series, have been praised in numerous ZJ Beny DC isolator reviews for their quality, innovation, and installer-friendly design. Installers, EPCs, and system designers worldwide rely on the ZJ Beny DC isolator datasheet for critical specifications and installation best practices.