Metal-Enclosed Switchgear
Metal enclosed switchgear designed for safe switching and fusing protection for medium voltage systems. These units are a perfect addition for your unit substation transformer, providing easy and safe current interrupting capabilities.
Switchgear Specifications
Voltage: 5 – 15 kV
Maddox metal enclosed switchgear are designed, built, and tested in accordance with the highest industry standards. They feature current-limiting clip-lock fusing options (up to 600E for 5 kV applications and up to 300E for 15 kV applications) with an optional close-coupling to transformers.
Standard Features
- 5 kV or 15 kV nominal voltage rating
- 600A main bus ratingAmps
- Fault close asymmetrical: 40 kA
- Momentary switch closed asymmetrical: 25 kA
- BIL: 95 kV
- Space heater circuit w/ thermostat (requires 120 VAC external power source)
- Provision for kirk key interlock
- Mechanism & contacts: copper-silver plated
- Frequency: 60 hertz
- Line terminals: ANSI segment 3
- Load terminals: ANSI segment 1
- Enclosure: NEMA 3R, outdoor/indoor
- 11-gauge steel construction
- ANSI 61 gray powder coating for a durable, Lasting Finish
Optional Upgrades
- 27 kV designs
- Dry-contact kit (2 normally open, 2 normally closed)
- Customer metering
- Multi-bay lineups
- Surge arresters
- Convenience light
- Space heater switch
- Duplex receptacle
- Run back bus
Same Day Quotes
Price and lead time today
3 Year Warranty
Backed by US-based support
USA Options
Made-in-America available
Hit Your Lead Time with Stock and Custom Options
Maddox keeps metal-enclosed switchgear in stock for fast deliveries and builds custom ones with some of the best lead times in the industry.
Stock
Hit project deadlines with common kVA sizes and voltages, in stock and ready to ship.
Custom
Build exactly what you need with extensive switchgear customizations available.
See How We Earned +800 Five Star Reviews
Maddox metal-enclosed switchgear provide reliable power to critical projects across the United States.
Get a Quote in Minutes
Fill out the form and we will get back to you as soon as possible. Our average response time during business hours is 30 minutes.
Meet Any Spec with Extensive Customizations
Meet your exact spec with customized transformers designed, built, and tested in accordance with the highest industry standards including NEMA, ANSI, DOE, and IEEE as applicable.
Multi-Bay Lineups
Multi-Bay Lineups
Multi-bay lineups combine multiple switchgear sections into a single integrated assembly, providing a compact way to connect and control multiple incoming and outgoing circuits.
NEMA 3R Enclosures
NEMA 3R Enclosures
NEMA 3R enclosures provide the same protection as NEMA 1 enclosures with additional protection against rain, sleet, and snow.
Space Heater with Thermostat
Space Heater with Thermostat
Space heaters in metal-enclosed switchgear prevent condensation by maintaining a controlled internal temperature and reducing excess moisture buildup on electrical components.
Frequently Asked Questions
Shipping
How is shipping arranged for Maddox’s metal-enclosed switches?
Maddox ships metal-enclosed switches anywhere in North America, handling all logistics at no additional charge. Request a quote here to get specific pricing and lead times.
Lead Time
How soon can you ship a Maddox metal-enclosed switch?
Because Maddox stocks switchgear across the United States, we have many ready-to-ship units available. If you need a custom design, request a quote to receive pricing and lead time within 30 minutes.
American Made
Are Maddox metal-enclosed switches made in America?
Yes, Maddox stocks American-made metal-enclosed switchgear. If your project requires BABA compliance, please notify your sales rep.
Returns & Exchanges
Can I return or exchange a Maddox metal-enclosed switch?
Yes, Maddox metal-enclosed switches may be eligible for return or exchange within six months of shipment date. Terms and conditions apply. Learn about the Maddox return and exchange policy here.