KGQ2 Automatic Changeover Switch (MCCB Type) — 100A to 1600A

O KGQ2 Series Automatic Changeover Switch is an MCCB-type dual-source transfer device for low-voltage systems.
It automatically switches between the main and standby power supplies (or grid and generator) and offers compact construction,
reliable interlocking, fast transfer, and easy cabinet integration. Available from 100A to 1600A, with 3P/4P options,
KGQ2 is widely applied in critical facilities such as hospitals, data centers, and industrial plants.

Aplicativos

• Hospitals, banks, data centers, and high-rise buildings
• Industrial and commercial facilities with dual-source power systems
• Grid-to-generator transfer and emergency backup applications
• Distribution cabinets requiring compact ATS integration

Principais recursos

• MCCB-type construction, compact and modular
• Automatic changeover with electrical & mechanical interlock; emergency manual operation
• 3P / 4P options for three-phase three-wire and four-wire systems
• Integrated controller with voltage detection and phase-loss protection
• Optional remote control and signal outputs
• Rated working voltage: AC400V; control voltage: AC220V
• Fast, safe, and stable transfer for sensitive loads
• Em conformidade com IEC 60947-6-1 and related standards

Main Technical Parameters (Summary)

The KGQ2 series covers 100A–1600A ratings in 3P / 4P versions. Typical systems are AC400V.
Utilization categories commonly include AC-33B / AC-31. Short-circuit and withstand capacities vary by rating;
refer to the datasheet for precise values. Transfer time and endurance are designed for frequent switching,
with optional auxiliary contacts, remote signaling, and fire-control terminals depending on configuration.

Wiring & Operation Modes

• Automatic changeover (grid ↔ standby / generator)
• Emergency manual operation; optional remote control
• Electrical & mechanical interlock for safe transfer
• Fire-control / dry contact signal terminals (if equipped)

Follow the official wiring diagrams in the datasheet during installation.

Padrões e conformidade

• IEC 60947-6-1 / GB/T 14048.11 — Automatic transfer switching equipment (ATS)
• IEC 60947-2 / GB/T 14048.2 — Low-voltage circuit breakers (MCCB)
• IEC 60947-1 — General rules for low-voltage switchgear and controlgear

Guia de seleção

1. Corrente nominal (100–1600A): select according to total load with margin
2. Postes: 3P for three-wire, 4P for four-wire systems
3. Control / Signals: optional remote control, fire-control linkage, status outputs
4. Short-circuit Capacity: ensure compatibility with system fault levels
5. Instalação: dimensions, terminals, wiring method, cabinet space

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