SIRCO PV 275A-500A 1500Vdc - PV Load Break Switches - Product Data Sheet

Sep 5, 2026

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This document is a product data sheet for the SIRCO PV series of load break switches, designed for photovoltaic applications. The switches are manually operated, multipolar, and provide safety isolation. They are specifically engineered to handle photovoltaic currents, including no critical current, and can operate under double earth fault conditions. The data sheet details the electrical and mechanical characteristics of the switches, including rated insulation voltage, impulse withstand voltage, utilization category, thermal rating, short circuit capacity, and mechanical durability. It also lists available accessories such as direct and external handles, shaft extensions, and bridging bars. The SIRCO PV switches are crucial components in solar power systems, ensuring reliable and safe operation under demanding conditions. The document provides reference numbers for different current ratings: 275A (Ref. 26PV 3026), 315A (Ref: 26PV 3032), 400A (Ref. 26PV 3041), and 500A (Ref. 26PV 3051). Detailed physical dimensions are also provided in the accompanying diagrams.

LanguageEnglish

CategoryGeneral

FormatPDF

Pages1

AccessFree to download

SIRCO PV 275/315/400/500A 1500Vdc

Product Data Sheet

Characteristics

Electrical characteristics

Mechanical characteristics

Accesories

FAQs

What is the primary function of the SIRCO PV load break switches?

The SIRCO PV load break switches are manually operated multipolar switches designed to make and break under load conditions, providing safety isolation for photovoltaic applications.

What are the key electrical characteristics of the SIRCO PV switches?

The switches have a rated insulation voltage of 1500Vdc, a rated impulse withstand voltage of 12kV, and are designed for DC-21B utilization category. They also feature a thermal rating (Ith @60°C) and short circuit capacity (rated short-time withstand current 0.3s, Icw) of 10 kA rms across all models.

What makes the SIRCO PV switches suitable for photovoltaic applications?

These switches are specifically designed and tested for PV applications, meaning they can withstand any PV current, have no critical current, and can operate under double earth fault situations.

Sep 5, 2026

Upload by Quinn