Distribution equipment that won't let you down is needed when your building needs power that won't go out and the highest level of operating safety. With circuit breakers that can be removed, our Robust MV Drawout Switchgear is industrial-grade reliable and works with voltages from 1kV to 38kV. The reinforced mechanical structures in this system have been tried for over 10,000 operating cycles to make sure they can handle temperatures ranging from -40°C to +85°C. Safety-assured removal of parts without turning off whole systems is possible for your repair teams, reducing costly downtime. The advanced arc fault resistance and foolproof interlocking systems keep people and property safe while keeping output going 24 hours a day, seven days a week.
You face constant pressure to maintain uptime while ensuring worker safety. Traditional fixed switchgear forces you to choose between scheduled maintenance and continuous operation.
Our solution changes that equation entirely.
The drawout design lets your technicians access faulty circuits without disrupting adjacent systems. This modular approach means you can perform inspections during brief production breaks rather than scheduling expensive facility shutdowns.
Core capabilities include:
The reinforced construction handles harsh industrial environments where temperature fluctuations, electromagnetic interference, and corrosive atmospheres would compromise lesser equipment.

Your facility has unique power distribution requirements. Cookie-cutter solutions create bottlenecks and limitations.
We've built flexibility into every aspect of this switchgear system.
The modular design accommodates numerous circuits with configuration options that adapt as your needs evolve. When you expand production lines or add new equipment, the system scales seamlessly without requiring complete replacement.
Key operational benefits:
Your maintenance teams appreciate the straightforward serviceability. Faulty circuits withdraw completely for inspection and repair while other circuits maintain normal operation.
Different industries present different challenges. You need equipment proven in real-world conditions.
Industrial Manufacturing Environments
Our equipment is used 24 hours a day, seven days a week by factories that make cars, steel, and chemicals. The strong construction works great in places with a lot of electromagnetic interference and big changes in temperature.
During repair windows, your production lines will still work. With selective security, problems are kept separate so that they don't cause shutdowns that stop whole facilities.
Utility and Renewable Energy Distribution
Rapid fault isolation and quick service restoration are needed for urban substations and green systems. You can't pay for outages that last for a long time and affect a lot of people.
With the drawout feature, spinning stocks can be kept up while workers work on equipment. Construction that is approved for outdoor use can handle the stresses of the weather year after year.
Mining and Hazardous Location Operations
The highest safety standards are needed on offshore sites, in underground mines, and at petrochemical plants. Working in dangerous environments where equipment failure could kill people is what you do.
Better safety against earthquakes and the environment keeps technology working reliably in situations that would normally destroy it. Protection planning keeps going even when parts of the system are being fixed.

Understanding specifications helps you make informed decisions. Here's what our Robust MV Drawout Switchgear delivers:
| Parameter | Specification |
|---|---|
| Rated Voltage | 3.3kV to 38kV |
| Current Rating | 630A to 6300A |
| Circuit Breaker Type | SF6 or Vacuum Technology |
| Interrupting Capacity | Up to 63kA |
| Ingress Protection | IP54/IP65 |
| Operating Temperature | -40°C to +85°C |
| Seismic Qualification | IEEE 693 Certified |
| Mechanical Endurance | 10,000+ Operations |
| Insulation Resistance | >1000MΩ at Test Voltage |
| Partial Discharge | <10pC at 1.1x Rated Voltage |
You invest significant capital in distribution infrastructure. That investment should deliver long-term value.
Enhanced Power Supply Reliability
High-conductivity coated plug-in contacts are used in the main circuit to make sure that connections are stable even when the load is high. With long contact strokes, primary and secondary touches stay physically apart.
This system gets rid of connection problems that lead to sudden power blackouts.
The anti-corrosion powder coating on modular steel containers makes them ideal for use in C5-M marine settings. Your equipment stays structurally sound even in places near the coast or in factories that are full of poisons that break down metal.
Advanced Protection Integration
Smart security methods are needed for modern buildings. Digital safety and IEC 61850 transmission methods are built into our switchgear.
You can keep an eye on contact wear and gas concentrations in real time. Scheduled treatments are replaced by condition-based maintenance, which cuts down on unneeded downtime and labour costs.
Unmanned substations that are hard to get to can benefit from remote control capabilities.
Every unit undergoes rigorous testing before leaving our facility. You receive equipment validated through comprehensive quality control processes.
Mechanical Operation Testing
We conduct 2000-cycle drawout mechanism endurance tests per IEC 62271-102 standards. Your equipment arrives proven to perform smoothly under rated current conditions.
Electrical Performance Validation
Primary injection testing at rated current confirms proper operation. Insulation resistance measurements exceed 1000MΩ. Partial discharge testing verifies performance below 10pC at 1.1 times rated voltage.
Environmental Qualification
Salt spray exposure testing runs 1000+ hours per ASTM B117 standards. Vibration testing meets IEC 60068-2-6 requirements. Thermal cycling from -40°C to +85°C for 100 cycles confirms operational reliability across temperature extremes.
Safety System Verification
Interlocking system functionality testing ensures proper sequence prevention. Ground fault protection receives precise calibration. Arc flash incident energy calculations verify personnel safety.
Our quality management follows ISO 9001 standards with zero-defect philosophy integrated throughout manufacturing.

We've delivered power solutions across diverse industries and applications. Our experience spans over 20 years with hundreds of successful projects.
Municipal infrastructure projects including transit systems rely on our dual-circuit power supply designs. Absolute safety standards demand equipment that never fails.
Commercial facilities from retail complexes to entertainment venues trust our solutions for uninterrupted operations. Guest experience depends on reliable power delivery.
Industrial installations at manufacturing facilities demonstrate our capability to meet demanding production requirements. Projects completed ahead of schedule while maintaining rigorous quality standards.

Q: What maintenance intervals should we expect?
Vacuum circuit breakers require inspection every 5-7 years or 2000 operations. SF6 units need annual gas density checks and 10-year major overhauls. Integrated condition monitoring provides real-time status updates, reducing unnecessary maintenance interventions and optimizing your maintenance schedules.
Q: How do you ensure safety during drawout operations?
Mechanical interlocks prevent drawout under load conditions. Stored energy indicators and voltage verification systems confirm safe isolation before any contact. Emergency manual override procedures require dual-key authorization. All procedures align with NFPA 70E standards for electrical safety in the workplace.
Q: What if the drawout mechanism fails during operation?
Redundant manual drawout capabilities use portable hand crank tools. Your team can remove circuit breakers even with motor drive failure. Emergency contact separation systems provide immediate isolation without requiring full drawout completion, ensuring safety under all conditions.
Q: How is protection maintained when one breaker is removed?
Intelligent protection systems automatically adjust coordination curves for remaining feeders. Bypass switching options maintain critical load protection during maintenance. System studies verify adequate backup protection coverage, so you never operate with compromised safety margins.
Q: What environmental conditions affect warranty coverage?
Operation beyond rated temperature limits (-40°C to +85°C) voids warranty. Exposure to corrosive chemicals not specified in environmental qualification affects coverage. Installation altitude exceeding 2000 meters requires derating. Seismic events beyond design qualification and improper transportation storage also impact warranty terms per IEEE 693 standards.
Our business has been specialising in power distribution systems for more than twenty years. With 15 senior engineers, over 30 intermediate technicians, and 17 senior technicians, we have a strong professional base that you can use.
You will get cutting-edge technology that is backed by 18 patents. Our more than 120 sets of modern manufacturing equipment, such as CNC automatic winding machines and microcomputer-controlled gradient curing ovens, make sure that the quality is always the same.
We use strict quality control at every step, from getting the raw materials to installing them. Each product is closely watched to make sure that no flaws get to your building.
Your needs come first in our mindset. Leadership in technology, excellent customer service, and honesty are the core values that every customer connection is built on. We offer custom solutions that are made to fit the needs of your business and area.
We are dedicated to quality, worker safety, and protecting the environment, as shown by our international standards such as ISO 9001, ISO 14001, and OHSAS 45001. To give you peace of mind, all of our goods have been certified by the National CCC.
In addition to supplying equipment, we also help you buy other things, so you can get all the help you need for your full power distribution system in one place.

Experience the reliability and flexibility of Robust MV Drawout Switchgear designed for your critical operations. Contact our team at tuojie@electricinchina.com for customized solutions.