Siemens 3LD Switch Disconnector 3P 16–125 A | Load Break Isolator Switch

The Siemens 3LD is a 3-pole 16–125 A switch disconnector designed to switch and isolate circuits on load, providing a visible and lockable isolation point for motors, pumps, HVAC units and distribution boards during maintenance.

Key features

• On-load making and breaking capability
• Positive break indication and padlockable handle for safe isolation
• Robust contacts with long mechanical life
• Accessories available: extended handles, auxiliary contacts, shrouds and extra poles

Technical specifications

Available versions

Current Rating: 16A / 7.5kW, 25A / 9.5kW, 32A / 11.5kW, 63A / 22kW, 100A / 37kW, 125A / 45kW.

Typical applications

• Local isolation of motors, pumps and fans
• Main switches of distribution boards
• HVAC chillers, air handling units and rooftop units
• Solar PV and industrial panels

Selection and installation tips

Size the switch at least equal to the upstream breaker rating; a switch disconnector does not provide overload or short-circuit protection, so it must be backed up by a breaker or fuses.

Buy Siemens 3LD in Egypt

Spark Egypt supplies the original Siemens 3LD switch disconnector (load break switch) with a VAT tax invoice for electrical contractors, panel builders, factories, consultants, retailers and maintenance teams. Delivery is available to Cairo, Giza, New Cairo, 6th of October, Sheikh Zayed, the New Administrative Capital, Alexandria, the Delta, the Canal cities and Upper Egypt. Our technical team can confirm ratings, compatible accessories and equivalent references before you order, and project quantities are quoted on request.