UDQ-12/24 Series Digital SwitchgearMedium-Voltage Switchboard
The UDQ-12/24 series is an intelligent, metal-clad withdrawable switchgear developed by Daqo for 7.2-24kV systems. It is designed for efficient power distribution, control, and protection in power plants, urban networks, and commercial buildings.
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UDQ switchgear, which Eaton-collaborated enhanced design integrates proven craftsmanship, fully compliant with GB/DL/State Grid standards.
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Space-saving double-layer configuration fits two vacuum circuit breakers, ideal for space-constrained or renovation projects.
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Double-busbar version enables uninterrupted power for metallurgy, mining and other critical industries.
Core Advantages & Features
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Wide Brand CompatibilityCompatible with major circuit breaker brands.
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Enhanced Environmental AdaptabilitySuitable for coastal and chemical environments with AG5 seismic compliance.
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High Current Capacity12kV withdrawable units support up to 5000A; fixed units up to 6300A.
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Superior Arc ResistanceAchieves internal arc fault level IAC AFLR 50kA/1s.
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International CertificationsCertified by TÜV and GOST, compliant with 60Hz operating standards.
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Marine Environmental CertificationApproved by marine classification societies for environmental protection.
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Smart Factory IntegrationEnables intelligent monitoring, fault warnings, and health assessment, meeting NB/T 42044 standards.
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Extended Qualification Range17.5kV and 24kV versions certified for 60Hz operation and TÜV approval.
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Technical Parameters
| Basic Parameters | |||
|---|---|---|---|
UDQ-12 | UDQ-17.5 | UDQ-24 | |
| Rated voltage | 12 kV | 17.5 kV | 24 kV |
Rated power frequency withstand voltage | 42 kV/1min | 38 kV/1min | 65 kV/1min |
Rated lightning impulse withstand voltage | 75 kV | 95 kV | 125 kV |
Rated frequency | 50 Hz / 60 Hz | ||
Rated short-time withstand current | 25~50 kA/4s | 25~63 kA/4s | 25~31.5 kA/4s |
Rated peak withstand current | 63~125 kA | 63~173 kA | 63~80 kA |
Busbar rated current | 630~5000 A | 630~6300 A | 630~3150 A |
Internal fault arc withstand current | 50 kA/1s | 40 kA/1s | 31.5 kA/1s |
Weight | 800~1200 kg | 800~1200 kg | 900~1300 kg |
Protection level | Enclosure IP4X, compartment IP2X, IK10 | ||
Product Documents
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Product Brochure
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UDQ Metal-clad Withdrawable Switchgear
2025-11-25
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