11kv 22kv 33kv air break switch

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MOQ : 50 Pieces

11kv 22kv 33kv air break switch Trade Information

Minimum Order Quantity
50 Pieces

Delivery Time
7 Days

About 11kv 22kv 33kv air break switch

An 11kV, 22kV, or 33kV air break (AB) switch is a triple-pole, gang-operated switch for medium-voltage electrical distribution systems that uses air as the insulating medium to safely interrupt current. These outdoor-type switches are designed for manual, simultaneous operation of all three phases to isolate circuits for maintenance. Key features include high-quality, corrosion-resistant construction, a robust gang-operated mechanism, and high-voltage insulators, often with arcing

Insulators: 36kV or 33kV class outdoor post insulators.
Contacts: High-conductivity ETP grade violet copper plate contacts, typically spring-loaded for high-pressure connection.
Operating Mechanism: Gang-operated via a manual mechanism (e.g., CS mechanism) that opens all three phases simultaneously.
Blade/Switch Part: Rectangular copper blade with a pivoting motion (horizontal or vertical).
Frame & Base: Galvanized structural steel frame. [1, 2, 3, 4]

Key Features & Applications

Voltage/Current: Rated for 33kV systems, typically available in 400A, 630A, or 800A capacities.
Operation: Manual air-break, usually installed on top of poles.
Isolation: Offers a visible break in the circuit, usually meant for off-load switching.
Design: Often supplied in 3-pole configurations (for 3-phase) and can have single or double break contacts.
Usage: Commonly used in distribution systems, substations, and industrial sites for maintenance isolation. [1, 2, 3, 4, 5, 6, 7]