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10 kVA Single Phase Pad Mounted Transformer | 24940GrdY/14400, Low No-Load Loss
Product Overview
Leilang Electric 10 kVA single-phase pad-mounted transformer is a utility-grade power distribution solution engineered exclusively for North American markets, delivering industry-leading safety, energy efficiency and reliability. Designed to step down 24940GrdY/14400V primary voltage to standard 120/240V secondary power, this unit features an ultra-low no-load loss of only 47W and a fully enclosed dead-front construction that eliminates all exposed live parts, ensuring zero electrocution risk in public areas.
Fully certified to UL/cUL standards and compliant with ANSI/IEEE C57, CSA and DOE 2016 efficiency requirements, it achieves an impressive 98.3% overall efficiency, significantly reducing long-term energy costs. Built with high-purity copper windings and a robust compartmental-type II steel enclosure, it provides maintenance-free operation for over 20 years in extreme outdoor conditions. Ideal for residential neighborhoods, light commercial facilities and rural electrification projects, it offers fast ground-level installation without the need for dedicated substations or high-altitude maintenance.
Specifications
Rated Capacity (kVA)
High voltage (kV)
No Load Loss (W)
On load Loss (W)
Height (mm)
Depth (mm)
Width (mm)
Weight (kg)
15 kVA
34.5/19.92 13.8/7.96 13.2/7.6 12.47/7.2 or others
50
195
840
740
610
294
25 kVA
80
290
840
740
610
362
37.5 kVA
106
360
840
760
610
476
50kVA
135
500
840
810
610
553
75 kVA
190
650
840
860
610
672
100 kVA
280
1010
910
1200
965
714
167 kVA
435
1530
1000
1200
965
913
250 kVA
550
2230
1250
1300
1430
1106
Core Features & Benefits
Fully Enclosed Zero-Risk Safety Design
Dead-front construction: All high-voltage components are completely sealed within a steel cabinet, eliminating any exposed live parts
Tamper-proof locking system: Prevents unauthorized access and vandalism in public spaces
Multi-layer protection: Integrated pressure relief valve, bayonet expulsion fuses and surge arresters for fail-safe operation
IP54 weatherproof rating: Withstands rain, snow, dust and extreme temperature fluctuations
Ultra-Low Loss Energy Efficiency
Industry-leading 47W no-load loss: 15% lower than standard equivalents, cutting idle energy consumption
98.3% overall efficiency: Meets and exceeds DOE 2016 mandatory efficiency standards
Long-term energy savings: Pays for itself in reduced electricity bills over its 20+ year lifespan
North American Full Compliance
UL/cUL listed: Third-party tested and certified for safety and performance
ANSI/IEEE C57 compliant: Built to North American utility industry standards
CSA approved: Suitable for installation across Canada and the United States
DOE 2016 certified: Meets the latest federal energy efficiency requirements
Low-Maintenance Durable Construction
100% copper windings: Superior conductivity and corrosion resistance compared to aluminum
Galvanized steel enclosure: Rust-proof and corrosion-resistant for outdoor use
KNAN self-cooling system: No moving parts, eliminating fan maintenance
Ground-level accessibility: All components can be serviced from the ground without aerial equipment
Flexible & Easy Installation
Factory pre-wired and tested: Ready for immediate connection on-site
Compact pad-mounted design: Requires minimal space and no dedicated substation building
5-position tap changer: Allows voltage adjustment to compensate for line voltage variations
Loop feed configuration: Supports both radial and loop distribution networks
Typical Applications
Residential neighborhoods and housing developments
Light commercial facilities: convenience stores, small offices, retail shops
Rural electrification and farm service
Street lighting and traffic signal systems
Underground utility distribution networks
Renovation and expansion projects requiring compliant power solutions
Frequently Asked Questions
What certifications does this 10 kVA pad-mounted transformer have for North American use?
Leilang Electric's 10 kVA unit is UL/cUL listed and fully compliant with ANSI/IEEE C57, CSA and DOE 2016 standards. It has passed rigorous third-party testing to meet all North American utility-grade safety and efficiency requirements.
What are its exact energy losses and efficiency?
It delivers an ultra-low no-load loss of 47W and load loss of 156W, achieving a total efficiency of 98.3%. These values are 10-15% better than industry averages, translating to significant long-term electricity savings.
Do I need to build a separate substation for this transformer?
No. Its compact pad-mounted design allows direct installation on a simple concrete pad, eliminating the need for dedicated substations or pole mounting. Factory pre-wired units can be deployed in hours with no high-altitude work required.
What type of insulation oil is used, and is it environmentally safe?
We use biodegradable natural vegetable oil ester (non-PCB) as standard. This eco-friendly insulation offers superior fire resistance compared to mineral oil and poses no environmental hazard, making it ideal for residential and public areas.
What is the expected lifespan and maintenance requirement?
With 100% copper windings, galvanized steel enclosure and KNAN self-cooling, this transformer has a 20+ year service life. Its fully sealed structure minimizes dust and moisture ingress, requiring only annual visual inspections with no routine internal maintenance.
Can you customize voltage ratings, and what is the lead time?
Yes. While the standard configuration is 24940GrdY/14400V to 120/240V, we support custom primary voltages (13.8kV, 13.2kV, 12.47kV, etc.). Standard units ship within 15 business days, and custom configurations take 30-45 days.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2007
Total Annual:
100000000-100000000
Employee Number:
120~150
Ecer Certification：
Verified Supplier
Founded in 2007 and headquartered in Jiading, Shanghai, Leilang Electric is a high-tech enterprise specializing in the R&D, production, sales, and technical service of transformers, reactors, voltage stabilizers, and regulators. The company holds ISO9001, ISO14001, and ISO45001 management ...
Founded in 2007 and headquartered in Jiading, Shanghai, Leilang Electric is a high-tech enterprise specializing in the R&D, production, sales, and technical service of transformers, reactors, voltage stabilizers, and regulators. The company holds ISO9001, ISO14001, and ISO45001 management ...
