A power blip lasts a split second, but it can corrupt files, crash servers, and knock a whole office offline. That's why so many IT rooms run on APC systems. APC, now part of Schneider Electric, makes the backup batteries, power strips, racks, and cooling that keep equipment running when the grid misbehaves.
The lineup is huge, which can make shopping a little confusing. Below, we break it into three families: UPS units, power distribution units, and data center infrastructure. You'll see what each product line does, who it suits, and what to check before you buy.
Core Product Categories
Every unit APC sells falls into one of three families. Some store backup power, some spread power across a rack, and some house and cool the gear itself. Most server rooms end up using all three, often from the same brand. Let’s walk through each family, starting with the product that made APC famous.
APC Uninterruptible Power Supplies (UPS)
A UPS sits between the wall outlet and your equipment. When the power dips or drops, its battery takes over in milliseconds. Choosing the right APC unit comes down to load size, runtime, and how clean the power must be. APC splits its UPS lineup into three main groups, from desks to data halls.
Back-UPS
Back-UPS is the entry-level unit APC sells to homes and small offices. Models usually range from about 400 to 1,500 VA. That's enough to keep a desktop PC, a monitor, and a router running for several minutes during an outage. Many Back-UPS Pro models add automatic voltage regulation, which corrects mild brownouts without draining the battery.
Most models connect to a computer through USB. Free PowerChute software can then shut the computer down safely before the battery runs flat. I keep one under my own desk. Last winter, a storm cut our power twice in one evening, and I didn't lose a single unsaved file.
One tip is worth remembering. Plug only important devices into the battery-backed outlets. Laser printers pull big bursts of power and drain the battery fast. Most Back-UPS models include surge-only outlets for gear like that.
Check the runtime chart before you buy, too. A 1,500 VA model running a 200-watt PC can last well over 15 minutes. A gaming rig pulling 500 watts on the same unit may get only a few minutes.
Smart-UPS & Smart-UPS On-Line
Smart-UPS is the workhorse of server closets. If you've ever looked inside an APC server rack, there's a good chance a Smart-UPS sits at the bottom. These line-interactive models deliver pure sine wave output, which sensitive power supplies prefer. They come in tower and rack-mount versions, roughly from 500 to 3,000 VA, and many offer lithium-ion batteries that outlast lead-acid ones.
Smart-UPS On-Line steps things up. It uses double-conversion technology, so your equipment always runs from the inverter. There's zero transfer time when the power fails. On-Line models, such as the SRT series, start around 1 kVA and climb well past 5 kVA. They also accept extra battery packs for longer runtime.
Both families have a slot for a Network Management Card. With it, you can check battery health, get email alerts, and shut down servers remotely. That card turns a backup battery into a monitored part of your network.
Battery swaps are simple on most models. The batteries slide out from the front, often while the UPS keeps running. APC sells matching replacement cartridges, called RBC packs, so you know the fit is right.
Symmetra & Galaxy Series
Symmetra and Galaxy models protect much larger loads. Symmetra systems are modular. Power and battery modules slide in and out, so you can add capacity or swap a failed module without shutting everything down. The three-phase Symmetra PX is a common sight in mid-sized server rooms.
Galaxy is APC's three-phase line for data centers and big facilities. The Galaxy VS covers about 10 to 150 kW. The Galaxy VL handles 200 to 500 kW, and the Galaxy VX scales from 500 to 1,500 kW. A newer Galaxy VXL packs 500 to 1,250 kW into a compact frame. Many of these models reach up to 99% efficiency in eConversion mode, and most offer lithium-ion batteries.
These aren't do-it-yourself products, even for experienced IT staff. A certified electrician or a Schneider Electric partner handles the installation, startup, and service plan. Plan for growth from day one. A modular system lets you start with the power you need today and add modules later, which spreads the cost over several years.
APC Power Distribution Units (PDUs)
People often mix up the ups vs pdu question, but the two do very different jobs. A UPS stores power and keeps it flowing during an outage. A PDU simply spreads that power to every device in a rack or room. It doesn't hold any backup. APC makes PDUs for single racks and entire rooms.
Rack PDUs
A rack PDU looks like a heavy-duty power strip, but it's built for data centers. Most mount vertically in the back of a cabinet. APC calls these zero U, since they don't use any rack space. Others mount horizontally in 1U or 2U spaces at the front or back of the rack.
APC sorts them by features. Basic models just deliver power. Metered models show the total current draw on a small display, so you know how close you are to the limit. Switched models let you turn each outlet on or off remotely. That's handy when a frozen server needs a hard reboot at 2 a.m. Metered-by-Outlet models track power use on every single outlet.
Check the plug and outlets before you order. Many rack PDUs use twist-lock plugs such as NEMA L6-30 and offer a mix of C13 and C19 outlets. Matching those to your servers and wall receptacles saves you from a frustrating return. Look at the input rating as well. A 30-amp, 208-volt PDU delivers about 5 kW once you apply the usual 80 percent safety margin.
Row & Room Distribution
Bigger sites need power distribution beyond the rack. APC and Schneider Electric offer floor-standing power distribution units, remote power panels, and modular systems for whole rows and rooms. These take power from a large UPS and split it into many branch circuits that feed the rack PDUs.
Modular designs make growth easier. You can add new circuits without shutting down the room. Many units also monitor current on each branch, which helps you spot an overloaded circuit before a breaker trips. Colocation providers also use branch monitoring to bill each tenant for the power they actually use.
Careful planning matters a lot here. A qualified electrician should size every circuit and leave room for future racks. Good row and room distribution keeps a data center flexible for years, while poor planning leaves tangled cables and tripped breakers. Label every circuit at both ends, too. That small habit saves hours when someone has to trace a fault in a hurry.
APC Data Center and IT Infrastructure
Power is only part of the story. The equipment also needs a sturdy home, steady cooling, and someone watching over it around the clock. APC's data center lineup handles all three. Below, you'll find the racks, cooling gear, and complete integrated systems that hold everything together in one place.
NetShelter Enclosures
NetShelter is APC's family of racks and enclosures. The NetShelter SX is the flagship. It comes in heights such as 42U, 45U, and 48U, with widths of 600 or 750 mm. The wider version leaves extra room for cables and rack PDUs, which makes a big difference in busy cabinets. Cabinet depth matters as well. A 1,200 mm deep cabinet gives long servers and rear cable bundles room to breathe.
The NetShelter SV is a lower-cost option for simpler rooms. The NetShelter WX mounts on a wall, which suits small offices with little floor space. There's even a soundproof NetShelter CX that looks like office furniture, so servers can sit in a quiet workspace.
Most models offer tool-free mounting, perforated doors for airflow, and built-in cable management. Take your time with the cable layout. A tidy rack cools better and makes troubleshooting much faster. Short patch cords and color-coded cables help keep the back of the cabinet neat.
Cooling Solutions
Servers turn power into heat, and heat shortens their life. APC offers cooling options for every size of room. Rack fan trays and the NetShelter rack air removal unit pull hot air out of single cabinets. For rows of racks, InRow cooling units sit right between the cabinets and capture heat at the source.
Containment makes everything work better. Hot aisle or cold aisle containment keeps hot exhaust from mixing with cool intake air. That simple step can lower cooling costs noticeably. Blanking panels are another easy win. These covers fill empty rack spaces, so hot air can't loop back to the front of your servers.
Every cooling unit APC makes can report back to monitoring software. Sensors track temperature and humidity at the rack level. I once saw a single failing fan raise one cabinet's temperature by several degrees overnight. A temperature alert caught it before any server shut down, and the fix took about ten minutes.
Integrated Solutions
Integrated solutions combine power, cooling, racks, and monitoring in one package. The EcoStruxure Micro Data Center is a good example. It ships as a single enclosure with a UPS, PDU, cooling, and security already built in. Retail stores, clinics, and branch offices use these to run IT gear outside a traditional server room. They come in sizes from compact wall-mount units to full-height racks, so they fit closets, back rooms, and factory floors.
EcoStruxure IT software ties it all together. It watches UPS batteries, PDU loads, and rack temperatures from one dashboard, and it sends alerts to your phone. NetBotz devices add cameras and environmental sensors for extra peace of mind. Some even detect water leaks under raised floors.
One last tip is worth sharing. After installing new gear, visit the APC register product page on Schneider Electric's website. Registering with your serial number keeps your warranty records on file and speeds up support if something fails.
Protect Every Watt in Your Data Center Today
APC covers every layer of power protection. Back-UPS guards desks, Smart-UPS protects server closets, and Galaxy runs data centers. Rack PDUs spread power, NetShelter enclosures hold the gear, and cooling keeps it safe. Pick the right APC unit for each job, and your equipment stays online through every storm.
Shop power cords, Ethernet cables, and rack-ready accessories at TS Cables to complete every APC rack you build.
FAQs
What does APC stand for?
APC originally stood for American Power Conversion. The company is now part of Schneider Electric, but it still sells UPS, PDU, and rack products under the APC brand.
How long does a UPS battery last?
Most lead-acid UPS batteries last three to five years. Lithium-ion models often last longer. Heat shortens battery life, so keep each unit in a cool room.
Can I plug a power strip into a UPS?
APC advises against plugging power strips or surge protectors into a UPS. They can overload it or interfere with its protection. Use a proper rack PDU instead.
What is the difference between VA and watts?
VA measures apparent power, while watts measure real power. Check both ratings, and keep your total load below the UPS's watt rating for safe operation.
Do APC rack PDUs provide battery backup?
No, PDUs only distribute power. Pair a rack PDU with a UPS if you want your equipment to keep running during an outage.
Further Reading
Powering a rack is only half the job. Our blog walks through cabling, PoE, switches, and network setup step by step. Pick a post and keep your build moving.
- How to Select a UPS?
- How to Set Up a Small Business Network?
- The Best Connectors and Configurations for RF Coax Cable Assemblies
- RG6 & RG59 Coax Cables: Which is Better for Home Use?
- F-Type Connectors Explained: How to Install F Connectors?
- What is an Ethernet Port? The Complete Guide to Ethernet Ports
- What is a Fiber Optic HDMI Cable?
