About this UPS
- Brand: APC by Schneider Electric
- Product Type: Line-interactive UPS
- Manufacturer Part Number: SC420
- Form Factor: Tower
- Plug/Connector Type: NEMA 5-15P
- Product Family: Smart-UPS SC
- Backup/Run Time (Half Load): 13.50 Minute
- Backup/Run Time (Full Load): 5.50 Minute
- Load Capacity: 420 VA/260 W
Marketing Information:
APC Smart-UPS protects your data by supplying reliable, network-grade power for space constrained business critical applications. Award winning APC Smart-UPS is the perfect UPS for protecting business critical fileservers, minicomputers, network switches and hubs, Point of Sale, retail/bank back office and ATM's.
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Plug/Connector Type: NEMA 5-15PReceptacle Type: NEMA 5-15RReceptacle Detail: 4 x NEMA 5-15RLoad Capacity: 420 VA/260 WOutput Voltage: 120 V ACWaveform Type: Stepped Sine WaveBattery Chemistry: Sealed Lead Acid (SLA)Backup/Run Time (Full Load): 5.50 MinuteBackup/Run Time (Half Load): 13.50 MinuteHot Swappable: YesProduct Color: GrayHeight: 7" (177.80 mm)Width: 5" (127 mm)Depth: 15" (381 mm)Form Factor: TowerWeight (Approximate): 9.98 kgPackage Contents:
- Smart-UPS SC 420VA
- CD with software
- Smart UPS signalling RS-232 cable
- User manual Environmentally Friendly: YesLimited Warranty: 2 Year
Technical specifications
How long it'll keep your equipment up.
Manufacturer-specified runtime at typical loads. Real-world figures depend on battery age, ambient temperature, and load profile.
Estimate based on manufacturer-specified runtime curve. Real-world runtime varies with battery age, ambient temperature, and load profile.
Before you order
How do I know this UPS will run my equipment?
Add up the wattage draw of every device you'll plug in (servers, switches, monitors). The UPS's wattage rating — not VA — is the number that matters. Aim for the UPS to run at 60–70% of capacity at full load: this gives headroom for inrush current and a meaningful runtime margin. Email us your equipment list and we'll size the right UPS within one business hour.
What's covered by the warranty, and how long does it last?
New units carry the full manufacturer warranty registered to you on receipt. The manufacturer handles claims directly via their North American support channel. Refurbished units are covered by our own 1-year UPSPLUSBATTERY warranty handled in-house in Canada.
Can I extend runtime beyond what's shown above?
Many Smart-UPS-class models accept an external battery pack (XBP) connected to the rear battery port. If this UPS shows "Extended Runtime Capable: Yes" in the spec grid above, an XBP is supported. Compatible XBPs and the runtime gain they deliver vary by model — contact us if you don't see the right XBP in our catalogue.