KYN61-40.5 is an indoor metal-clad withdrawable AC switchgear for 40.5kV, 50Hz power systems. It is used in substations and industrial applications for power distribution, offering high reliability, safety, and frequent operation performance.
Designed for three-phase AC 50Hz systems, it is mainly used in power plants, substations, and industrial & mining enterprises for receiving and distributing electrical energy.
Model Designation
K: Metal-enclosed
Y: Withdrawable type
N: Indoor installation
61: Design serial number
40.5: Rated voltage (kV)
(Z): Vacuum circuit breaker
Main Technical Parameters
Switchgear Specifications
Item
Unit
Value
Rated voltage
kV
40.5
Rated current
A
1250 / 1600 / 2000
Rated frequency
Hz
50
Rated short-time withstand current
kA
20 / 25 / 31.5
Rated peak withstand current
kA
50 / 63 / 80
Rated power frequency withstand voltage
kV
95 (1 min)
Rated lightning impulse withstand voltage
kV
185
Degree of protection
—
IP3X
Vacuum Circuit Breaker Parameters
Item
Unit
Value
Mechanical endurance
times
10,000
Opening time
ms
30 ≤ t ≤ 60
Closing time
ms
50 ≤ t ≤ 100
Degree of protection
—
IP43
Normal Service Conditions
Ambient temperature: Max +40°C, Min −15°C Relative humidity: Daily average ≤ 95%, Monthly average ≤ 90% Altitude: ≤ 1000 m Seismic intensity: ≤ 8 degrees Environment: Free from corrosive/flammable gases, no severe vibration.
Foundation and Installation
Electrical room height requirement: ≥ 4500 mm. Operating aisle width for single row: ≥ 3000 mm. The equipment can be fixed by bolting or welding to the foundation.
Advanced Manufacturing
Our facilities specialize in the R&D, production, and sales of high and low voltage switchgear, box-type substations, and transformers. All products have obtained authoritative certification, with quality meeting international standards.
Packaging & Shipping
We provide complete packaging and logistics solutions. All products are packed with export-standard wooden cases or protective materials to ensure safe domestic and international transport.
Certifications
Frequently Asked Questions
What certifications do your products have?
Our products comply with IEC standards and have certifications such as ISO, CE, and CCC.
How do you ensure product quality?
We have strict quality control processes from raw materials to final inspection, ensuring all products are tested before shipment.
What is your typical delivery time?
Normally 15–30 days depending on order quantity and specific customization requirements.
Can you provide technical installation guidance?
Yes, we provide remote technical support and guidance to ensure correct installation and operation.
Which industries do you primarily serve?
We serve power plants, factories, construction, infrastructure, and new energy sectors globally.
Do you support EPC project requirements?
Yes, we can supply complete electrical system solutions for EPC contractors and large-scale projects.
Zago Electric
