1,000+ Electrical Transformers (7.2–34.5 kV, 25–3000 kVA) — UL Evaluated, Certificate of Compliance Available — In Stock & Ready to Ship from Houston, CA & Florida. Contact Us Today!  

MV & LV Switchgear

Safe • Reliable • Low Maintenance • Easy Integration

Up to 52 kV | Full Power Distribution Chain | MV/LV Switchgear & Switchboards
IEEE • IEC Compliant • Touch-Proof Protection • Remote Automation & Smart Monitoring

Lead Time: 8-12 weeks

Daelim Transformer offers complete solutions for switchgear and switchboards in the low voltage and medium voltage areas. We offer solutions for the entire power distribution chain, not just for one voltage level.

If you are going to buy MV switchgear from one manufacturer, and LV switchboard from another, you must be prepared to coordinate their work. Daelim Transformer solves this with integrated production, in accordance with all standards, significant stocks and fast global delivery.

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switchgear_1

Switchgear Manufacturer and Supplier

Our switchgear possess qualities that make them resilient in terms of appropriate safety features, easy maintenance, and level of automation.

Switchgear Manufacturer and Supplier
CategoryFeatures
Safety measures
  • Protection against touching live parts
  • Safety spacing for switchgear installation
  • Enclosure ventilation openings
Maintenance & Accessibility
  • Design that facilitates visual inspection of switchgear elements
  • Easy access for cables and instrumentation
  • Removable covers for inspection
Automation & Monitoring
  • Optional remote motorized operation
  • Integration of voltage, current or arc fault detection sensors

Switchgear

Daelim Transformer produces medium and low voltage switchgear and switchboards, which are integrable with other plant elements and various other manufacturers. Our switchgears are used at operating voltages up to 52 kV. Product lines include:

  • Medium voltage switchgear– For distribution, transformer and consumer protection
  • Low voltage switchgear– Secondary distribution and electrical circuit protection
  • Switchboards– Low voltage distribution
  • Compact secondary substations– MV switchgear, distribution transformers and LV switchboard in one enclosure
Switchgear

Product Coverage Range

The following table shows the standard Daelim Transformer’s offer for our switchgear and switchboard products. All available options are in accordance with global standards or specific ones requested by the customer.

TypeVoltage / Current RangeProduct Categories
MV SwitchgearUp to 52 kV
  • Metal-Clad Switchgear (IEEE C37.20.2)
  • Metal-Enclosed Interrupter Switchgear (IEEE C37.20.3)
  • Air Insulated Switchgear (AIS)
  • Gas Insulated Switchgear (GIS / SF6 & Eco-gas)
  • Ring Main Units (RMU) for Wind/Solar Applications
LV Switchgear & SwitchboardUp to 1000 V / Up to 5000 A
  • LV Power Circuit Breaker Switchgear (UL 1558 / IEC 61439-2)
  • LV Switchboards (UL 891)
  • Low-Voltage Motor Control Centers (MCC)
  • Industrial Control Panels (UL 508A)
  • DC Switchgear for Renewable Energy & BESS
switchgear Coverage Range

Switchgear Types

Daelim Transformer offers different switchgear configurations to match a wide range of applications. There are several types of switchgear in our scope:

 

Switchgear Types
Switchgear BreakdownType
Voltage class
  • Medium voltage
  • Low voltage
  • Switchboards
Insulation
  • Air insulated
  • SF6
  • Solid insulated
Configuration
  • Fixed
  • Draw-out
  • Radial feed
  • Loop feed
Enclosure
  • Indoor
  • Outdoor
  • Pad mounted
  • Compact substation

Core Features - Importance of Coordinated Solution

The importance of purchasing electric distribution equipment from the same supplier has important and measurable benefits. This is an engineering decision that affects the way the plant is put into operation, the reliability and safety of protective devices and the consistency of documentation.

Daelim Transformer offers a compact switchgear and switchboard design, with a range of practical benefits for modern distribution systems:

FeatureAdvantages
Removable inspection plates and easy instrumentation access
  • Routine inspection
  • Easy thermal imaging
  • Easy access for device replacement
Visual state confirmation
  • Actual position of breaker/disconnector always visible
  • Increased electrical safety
Remote control
  • Equipment controllable via SCADA or other automatic systems
  • Faster response on failures
  • Increased safety
Optional current and voltage sensor integration
  • Cheaper than conventional CTs/VTs
  • Fewer wiring connections
Draw-out circuit breaker solution
  • Faster troubleshooting
  • Increased safety
Interlocks of incorrect switchgear operations
  • Wrong manipulations of our devices are mechanically impossible
Integrated switchgear-transformer busbar connection
  • No cables, insulation damages, terminations, etc.
  • Lower installation cost

Applicable Industries

switchgear applications

Daelim Transformer switchgear solutions are designed to provide safe, reliable and efficient distribution of electrical power across a range of commercial, industrial, utility and critical infrastructure applications. Our solutions can be found in:

Transformer Integrated Switchgear

We are primarily manufacturers of transformers. This is important to emphasize because neither transformers nor switchgear are separate products. For this reason, our many years of experience help us develop compact solutions that include both transformers and switchgear. The advantages are manifold:

ProblemSeparate VendorsDaelim Transformer Solution
Warranty issuesEach vendor has its own warranty and blames others for failuresComprehensive warranty
Fault coordinationComplex analysisThe same engineers design the complete solution
Different lead timePending projectDelivery at once in the planned time
Spare partsMore manufacturers, more lead timeYou contact Daelim Transformer for the complete solution

All equipment is manufactured in one factory and fully FAT-tested. Upon delivery, everything is packed in one container and arrives to you as a complete delivery. Finally, you have a single point for any inquiries or after sales support.

Transformer Integrated Switchgear

Configuration Options

switchgear Configuration Options

Each switchgear order is made according to the customer specification. A wide range of parameters can be customized before the equipment is put into operation.

CategoryDaelim Transformer’s Customization Options
Switchgear/Switchboard voltage
  • LV up to 1000 V
  • MV up to 52000 V
Enclosure Classification (IEEE)
  • Metal-Clad Switchgear (IEEE C37.20.2)
  • Metal-Enclosed Interrupter Switchgear (IEEE C37.20.3)
Insulation Medium
  • Air Insulated Switchgear (AIS)
  • Gas Insulated Switchgear (GIS)
  • Solid Insulated Switchgear (SIS)
Switchgear configuration
  • Fixed type—Standard for Metal-Enclosed
  • Draw-out type—Standard for Metal-Clad
  • Ring Main Unit (RMU) configurations (V, D, C modules)
  • Motor Control Center (MCC) withdrawable buckets
  • Single / double busbar
  • Fused disconnector
Compact substations
  • Transformer, LV switchboard, MV switchgear all in single steel or concrete substation
Connection type
  • Direct bus connection
  • Cable connection
Standards
  • IEEE C37.20.x (MV)
  • UL 1558 & UL 891 (LV)
  • IEC 62271-200 (MV)
  • IEC 61439 (LV)
  • CSA C22.2 No. 31 & No. 5 (Canada)
  • AS/NZS, CE & UKCA Compliant
Protection relays
  • Customer specified
SCADA interface
  • IEC 61850
  • IEC 61870-5-104
  • DNP3
  • Modbus
Enclosure protection
  • IP rating from IP20 to IP54
  • C4/C5 designation for aggressive environments
  • Desert grade and high altitude insulation
  • Resistant to seismically active zones
Equipment brand preference
  • In addition to Daelim Transformer, we offer equipment from top world manufacturers, which is specified before delivery

How to Request Customization:

STEP 01
Send us all known details and specification sheet.
STEP 02
Daelim Transformer engineering team reviews details against standards.
STEP 03
We return a tailored solution proposal & gap analysis.
STEP 04
Approve proposal & begin production (8-12 weeks lead time).
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Factory Testing & Quality Control

Each switchgear goes through rigorous tests in our factory before delivery. These tests consist of:

Switchgear factory acceptance test

  • Documentation inspection
  • Switchgear functionality – checking the operation of all devices in automatic and manual operating modes in coordination with other equipment
  • Checking mechanical and electrical interlocks
  • Relay protection devices test: all alarms and trips in accordance with settings
  • SCADA/communication testing
  • Customer specific testing
  •  

Switchgear routine tests

  • Visual and mechanical inspection
  • Circuit breaker mechanical and visual tests
  • Dielectric withstand testing
  • Checking the insulating medium in circuit breakers
  • Enclosure integrity test

Third-party FAT testing can be arranged upon customer request. Daelim Transformer has UL, cUL and CE certifications and a quality control management system.

For integral solutions, the following is tested:

  • Energizing the complete assembly
  • Checking the fault current and relay protection settings

Checking bus connections and permissible loads

Quality Control Process

ISO 9001
Certified manufacturing process & quality system
UL / cUL / CE
Global product safety certifications
IEEE / IEC / CSA
Strict compliance with international standards
SGS & CESI
Verified third-party factory testing reports

Lead Time & Delivery Schedule

Standard Order Lead Time: 8 – 12 Weeks
(From order confirmation to factory completion. Extended lead times apply for custom complex projects.)

Every Delivery Includes Complete Technical Documentation:


Details and results of factory acceptance testing (FAT) for switchgear/switchboard

Type test certificates with reference to applicable global standards

Dimensional drawings and detailed mechanical layout of the equipment

Single-line diagram with layout and cable entry configuration

Confirmed relay protection settings and basic operating characteristics

Spare parts list with recommended stock levels for life-cycle maintenance

After-sales & Lifecycle Support

Our minimum warranty period is 24 months from commissioning. This period can be extended up to 5 years depending on the customer’s needs. One of the key benefits for the customer is that the warranty covers the entire package of equipment.

Standard Warranty Scope

Warranty Exclusions

Technical Support

Get Your Optimal Switchgear Design

Send your electrical specifications to our contact addresses, and include: operating voltage, switchgear type (LV/MV or switchboard), transformer data if it is a compact solution, number of consumers, required standards and application type. Our engineering team will contact you with a preliminary solution and documentation, quotation and lead time within 2-4 days.

Daelim Transformer has a long history of switchgear manufacturing. Working with complex projects at various voltage levels, we have the engineering capability and technical expertise to produce high-quality switchgear. Call us, explain your needs and get top-quality products for your projects.

Optimal Switchgear Design

Send your electrical specifications to our contact addresses, and include: operating voltage, switchgear type (LV/MV or switchboard), transformer data if it is a compact solution, number of consumers, required standards and application type. Our engineering team will contact you with a preliminary solution and documentation, quotation and lead time within 2-4 days.

Daelim Transformer has a long history of switchgear manufacturing. Working with complex projects at various voltage levels, we have the engineering capability and technical expertise to produce high-quality switchgear. Call us, explain your needs and get top-quality products for your projects.

FAQ

What protection do Daelim Transformer's switchgear have for incorrect operation?

Our switchgear has electrical and mechanical interlocks that protect against improper handling, e.g. earthing connections while the equipment is energized. These interlocks are physical barriers, not just visual cues.

The compact secondary substation is a type-tested assembly consisting of LV switchboard, MV switchgear, distribution transformer, and connections in a single enclosure. This solution reduces complexity and unifies each plant.

Yes. We are a renowned company with research and development capabilities and we can adapt to any of your projects. It is important that you send us your project technical specifications and you will receive a technical solution with a budget estimate very quickly.

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