FUSIBLE SRF30 15A 1000VDC -SUNTREE

SRF30 Fuse – 15 A – 1000 VDC (SUNTREE) — Detailed Overview

The SUNTREE SRF30 fuse is a high-voltage DC fuse designed specifically for photovoltaic (PV) and renewable energy systems. It provides reliable overcurrent protection in solar DC circuits where standard AC fuses are not suitable.

General Description

Type: Solar DC fuse

Series: SRF30

Brand: SUNTREE

Rated Current: 15 A

Rated Voltage: 1000 VDC

Application: Protection of DC solar arrays, combiner boxes, and battery strings

This fuse is engineered to safely interrupt current flow in the event of an overload or short circuit in high-voltage DC environments — such as PV systems — where arcing and sustained DC faults require specialized protection.

Key Features

High Voltage DC Rated (1000 VDC)
Designed to safely interrupt DC circuits at up to 1000 V, making it suitable for residential and commercial solar installations.

Fast Response to Faults
Opens quickly under overcurrent conditions to protect downstream equipment like solar strings, combiner boxes, batteries, and inverters.

Reliable Current Limitation
Reduces let-through energy during a fault, minimizing damage to wiring and equipment.

Robust Construction

Arc-resistant design to handle DC fault conditions

Enclosed in a durable housing suitable for electrical cabinetsSuitable for panel-mounted or fuse block installations

Standard Form Factor
Fits typical photovoltaic fuse holders and combiners used in solar DC systems.

Safety and Compliance
Engineered to meet relevant IEC / UL / PV protection standards (specific certification may vary by version/model).

Where It’s Used

 Solar PV combiner boxes — to protect individual strings
 DC distribution panels
 Battery string protection in high-voltage DC systems
 Protection upstream of inverters and DC isolators

Why This Fuse Matters

In high-voltage DC power systems, faults can create sustained arcs that are very difficult to extinguish compared to AC. A DC-rated fuse like the SRF30:

 Interrupts dangerous fault currents safely
 Prevents equipment damage and thermal runaway
 Increases overall system reliability and safety
 Meets the unique requirements of photovoltaic and DC-storage environments

Typical Installation Notes

Always pair with a compatible DC fuse holder / combiner box

Fuse must match cable ampacity and system voltage

Install in accessible location for inspection and replacementConfirm PV system design follows relevant electrical codes and standards