Overview

This document provides detailed technical specifications, dimensions, accessories, and operational parameters for the S6R series DC switch disconnectors designed for photovoltaic (PV) and other DC applications. The devices comply with IEC 60947-1, IEC 60947-3, and UL98B standards, ensuring suitability for high-voltage DC systems up to 1500 Vdc.

Product Range and Ratings

• Rated thermal current (Ith) ranges from 160 A to 400 A depending on the model.
• Rated operational current (Ie) at 1500 Vdc matches the thermal current ratings: 160 A, 200 A, 250 A, 315 A, 320 A, and 400 A.
• Rated insulation voltage (Ui) is 1500 Vdc across all models.
• Rated impulse withstand voltage (Uimp) is 12 kV.
• Short-circuit making capacity (Icm) and short-time withstand current (Icw) are both rated at 10 kA (peak and rms respectively) for 1 second.

Mechanical and Operational Features

• Mechanical endurance is rated at 8000 cycles.
• Switch-disconnectors are available in 1-pole (1P) and 2-pole (2P) configurations.
• Terminals support copper busbars with cross-sectional areas and dimensions specified per model, including maximum length (L max), height (H max), and screw torque (M).
• Mounting options include standard fixing and rotated front plate versions (available on request) to accommodate different installation requirements.

Dimensions and Accessories

• Dimensions vary by model, with detailed measurements provided for height, length, and terminal sizes.
• External handles are included with standard shafts (code DS-SA11), providing IP65 protection.
• Shaft extensions are available in two types (DS-EP14 and DS-EP15) to accommodate door thickness variations.
• Auxiliary contacts options include 1NO+1NC (code D5LAU01) and 2NO+2NC (code D5LAU02), rated for 16 A resistive and 4 A inductive loads at 250 Vac.

Standards and Certifications

• Conforms to IEC 60947-1 and IEC 60947-3 standards.
• UL98B certification for PV disconnect switches, suitable for use in photovoltaic systems per NEC Article 690.
• Patent USA No. 9,899,159 B2 applies to the design.

Installation and Usage Recommendations

• Consult manufacturer for grounded installation configurations.
• Ensure correct shaft length and handle type are selected based on door thickness and mounting style.
• Verify wiring capacity and busbar connection ranges according to model specifications.
• Use appropriate auxiliary contacts for control and signaling functions.

Critical Parameters Summary Table

Summary

The S6R series DC switch disconnectors are robust, high-performance devices designed for safe disconnection in high-voltage DC applications such as photovoltaic systems. They offer a range of current ratings up to 400 A at 1500 Vdc, comply with international standards, and include versatile mounting and accessory options to suit various installation needs. Their mechanical durability and electrical ratings make them suitable for demanding industrial and renewable energy environments.