ABB Tmax XT7D Load Switch Disconnector

Feature & Principle

It belongs to ABB Tmax XT series high-current isolating switch, no overcurrent trip unit. It adopts visible break contact structure to achieve reliable electrical isolation during equipment overhaul. It supports manual lever operation, optional auxiliary contacts and motor operating mechanism. It is often used at the front end of feeder, capacitor bank and inverter for lockout-tagout safety isolation.

Specifications

Model: XT7D Brand: ABB Series: Tmax XT Current range: 1000 / 1250 / 1600A Rated voltage: up to 690V AC Structure: Fixed type Pole: 3P / 4P optional Function: Load switching, safety isolation Application: Factory distribution cabinet, pump and fan feeder, inverter incoming side Certification: CE, IEC, UL

Components & Diagnostics

Main contact assembly, arc extinguishing chamber, manual operating lever, auxiliary switch, terminal. Common faults: contact ablation, operating mechanism stuck, terminal overheating, insulation aging.

Product Brief

XT7D isolating switch, ABB Tmax XT high-current isolation spare widely used for industrial low voltage cabinet overhaul and replacement.