Aierway 40.5KV Center Distance 328mm

Product introduction

The Aierway 40.5KV Center Distance 328mm is an advanced, compact vacuum circuit breaker engineered for medium-voltage power distribution systems where space optimization and high reliability are critical. Designed with an optimized phase-to-phase distance of 328mm, this breaker delivers full 40.5kV performance in a significantly reduced footprint, making it ideal for modern switchgear applications requiring high density and superior electrical performance.

Key Features & Technical Advantages 

1.40.5KV Rated Voltage with Robust Performance
-Fully compliant with international standards (IEC 62271-100, ANSI, GB) for 40.5kV/35kV systems.
-Suitable for primary distribution networks, industrial plants, and infrastructure projects requiring reliable medium-voltage protection.

2. Versatile Configuration Options
-Mounting Types:** Available in both fixed and withdrawable (draw-out) versions.
-Current Ratings:** Typically offered in 1250A, 1600A, 2000A, 2500A, and 3150A frames.
-Breaking Capacity:** Standard ratings of 25kA, 31.5kA, and 40kA to match various system requirements.
-Operating Mechanism:** Spring-operated mechanism (motor charged) for reliable, consistent operation.

Main Technical Parameters

Specification	Value
Contact Opening Distance	20±1mm
Rated Over-Travel	5±1mm
Average Opening Speed	1.7±0.2m/s
Average Closing Speed	0.75±0.2m/s
Rated Contact Force	3600±200N
Contact Closing Bounce Time	≤3ms
Opening Contact Rebound Amplitude	≤2mm

Outline and dimensions of installation