Product Introduction

This TOMZN HA 18WAY DC 1000V PV Combiner Box is a premium-grade, IP65-rated distribution solution purpose-built for solar photovoltaic systems. Designed for 4 input / 4 output configurations, it delivers robust overcurrent and surge protection for DC solar circuits, ensuring reliable, long-term operation in harsh outdoor environments.

The enclosure is constructed from high-strength, weather-resistant engineering plastic, featuring a transparent, lockable hinged cover for easy inspection and maintenance, with a high-voltage warning label for safety compliance. It comes pre-configured with 4 sets of 2P DC 1000V MCB (Miniature Circuit Breaker, rated 16-63A) for reliable circuit isolation and overcurrent protection, paired with 4 sets of 2P DC 1000V SPD (Surge Protective Device, rated 20-40kA) to shield sensitive solar equipment from lightning strikes and voltage surges.

Additional built-in features include a dedicated ground wire terminal for system safety, a vent valve for pressure balance and moisture prevention, and pre-installed waterproof cable glands for secure, IP65-sealed cable entry/exit. This combiner box eliminates the need for on-site assembly of core protection components, streamlining solar system installation while ensuring compliance with international safety standards. Note: This distribution box does not include fuses.

Product Data Sheet

Product Name: TOMZN DC 1000V PV Combiner Box

Model: HA 18WAY

Configuration: 4 Input / 4 Output

Rated Voltage: DC 1000V

Protection Rating: IP65

Included 2P DC MCB: 4 units, 16-63A

Included 2P DC SPD: 4 units, 20-40kA

Enclosure Material: High-strength engineering plastic

Cover Type: Transparent hinged lockable cover

Built-in Features: Ground wire terminal, vent valve, waterproof cable glands

Fuse Included: No

Application: Solar photovoltaic DC power distribution system