UniSec & UniSec Air
Flexible, Safe, and Sustainable Medium Voltage Solutions
ABB’s UniSec portfolio offers modular indoor air-insulated switchgear up to 24 kV for secondary power distribution. Available in both SF₆ and SF₆-free (UniSec Air) variants, it offers safe, reliable, and future-ready solutions for various industries, including renewable energy, data centers, utilities, and infrastructure. With a compact, modular design, high operational flexibility, and compliance with global standards, UniSec ensures robust performance while supporting the transition to sustainable switchgear technology.
Description
UniSec is a modular air-insulated switchgear with SF₆ switch disconnector (GSec) for medium voltage secondary distribution up to 24 kV. It is highly adaptable, offering multiple functional units to meet diverse application needs.
Key Features:
✓ Up to 24 kV, 1250 A, and 25 kA
✓ Removable and withdrawable SF₆ and vacuum circuit breakers
✓ Certified for marine, seismic, and low-temperature environments
✓ Fully compliant with IEC 62271-200 standardsApplications:
Buildings, industry, transport, renewables, data centers, and distribution substations.
UniSec Air is ABB’s sustainable alternative with dry air insulation (GWP = 0), offering the same footprint, operations, and backward compatibility as UniSec. Equipped with GSec Air switch-disconnector and vacuum interrupters, it ensures reliability with lower environmental impact.
Key Features:
✓ Up to 24 kV, 630–1250 A, and 20–25 kA
✓ Dry air insulation medium with dedicated vacuum interrupter
✓ Compact design (<25 liters) with modular flexibility
✓ Removable and withdrawable vacuum circuit breakers
✓ Compliant with IEC standards & EU F-gas regulation (EU) 2024/573Applications:
Sustainable choice for buildings, infrastructure, industry, transportation, renewables, and data centers.
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