WLDG2 DC Disconnector Switch

The WLDG2 is a DC disconnector (isolating switch) designed to provide safe, visible isolation of high-voltage DC circuits in traction power substations, industrial power systems, and energy infrastructure. When maintenance or inspection is required, the WLDG2 ensures a clear, verifiable break in the circuit — protecting personnel and equipment with confidence.

Key Features

• Visible Break Isolation: Provides a clear, verifiable open-circuit position for safe maintenance operations
• High DC Voltage Rating: Suitable for traction substation and industrial DC power applications
• Lockable in Open Position: Supports lockout/tagout (LOTO) safety procedures
• Robust Insulation: High dielectric strength to withstand DC system transient overvoltages
• Low Contact Resistance: Minimizes power loss during normal operation
• Compact Panel-Mount Design: Suitable for integration into DC switchgear cabinets and distribution boards

Typical Applications

• DC traction power substations (metro, light rail, tram)
• Industrial DC power distribution and isolation
• Semiconductor rectifier and converter equipment maintenance isolation
• Energy storage system service disconnection
• Railway ground power infrastructure

Standards Compliance

• GB/T 25890.1 — Railway Applications: Ground DC Switchgear, Part 1: General
• GB/T 14048.3 — Low-voltage switchgear: Switches, disconnectors, switch-disconnectors and fuse-combination units (IEC 60947-3)

OEM/ODM available. Contact Wanlong Electric for detailed technical specifications, custom configurations, and volume pricing.