APC Smart-UPS SRT 10000VA 10000W 6U Rackmount Online UPS 208V SRT10KRMXLT

Key Features

• Double-conversion online design rated 10000 VA and 10000 W, feeding the load from the inverter continuously so there is no transfer break.
• Sine wave output at 208 V 1 phase (240 V also listed), which is what active power-factor-corrected server supplies need to see.
• 6 receptacles on the output: 4 x NEMA L6-20R and 2 x NEMA L6-30R.
• Input on 1 Hard Wire 3-wire (2PH + G), so it is a hard-wired install rather than a plug.
• 6U rack-mount chassis weighing 246 lb (111.58 kg).
• Sealed lead-acid battery, recharging in about 1.5 hours from flat.
• Surge energy rating of 480 joules on the input stage.
• Quoted at 55 dBA, so it belongs behind a door rather than on a desk.
• Rated for 32-104 F (0-40 C) operating temperature.
• Backed by 36 months on the UPS, 24 months on the battery.

Key Specifications

• Rated capacity: 10000 VA / 10000 W (power factor 1.00)
• Topology: Double-conversion online
• Output voltage: 208 V 1 phase (240 V also listed)
• Output connections: 4 x NEMA L6-20R; 2 x NEMA L6-30R; 1 x Hard Wire 3-wire (2PH + G)
• Input voltage: 208 V AC 1 phase (240 V also listed)
• Input connection: 1 Hard Wire 3-wire (2PH + G)
• Battery: Sealed lead-acid
• Form factor: 6U rack-mount
• Dimensions: 10.4 in (263 mm) H x 17.008 in (432 mm) W x 28.1 in (715 mm) D
• Net weight: 246 lb (111.58 kg)
• Surge protection: 480 joules
• Warranty: 36 months on the UPS, 24 months on the battery

What this unit is

The APC Smart-UPS SRT SRT10KRMXLT is a double-conversion online uninterruptible power supply rated at 10000 VA and 10000 W. Output is sine wave at 208 V 1 phase (240 V also listed), which is what active power-factor-corrected server and network supplies expect to see. VA and watts are rated the same here at a power factor of 1.00, so there is no hidden derating between the two numbers. Double conversion means the load is fed continuously from the inverter, with incoming mains used only to run the rectifier and charge the battery. There is no transfer time to speak of and no exposure to whatever the incoming waveform is doing, which is why this topology is specified for equipment that will not tolerate a break.

Power and outlets

Input is 208 V AC 1 phase (240 V also listed) through a 1 Hard Wire 3-wire (2PH + G) connection. The output panel carries 6 receptacles: 4 x NEMA L6-20R and 2 x NEMA L6-30R. There is also 1 hard-wired output terminal (Hard Wire 3-wire (2PH + G)), which needs an electrician rather than a plug. Note the input side: this model is hard-wired rather than corded, so it needs a dedicated circuit terminated by an electrician. Input frequency is 40 - 70 Hz with auto-sensing.

Battery and runtime

The battery is sealed lead-acid, internal to the unit. APC quotes a typical recharge time of 1.5 hours from a full discharge, which is the figure that matters when outages arrive in pairs rather than singly. Sealed lead-acid batteries are consumables, not permanent parts. Expect to replace them somewhere in the three-to-five-year range depending on how warm the room runs, and treat that as planned maintenance rather than a fault. Heat is what kills them. Every few degrees above a normal room temperature meaningfully shortens service life, so the same unit in a ventilated rack will outlast the one tucked into a warm cupboard by a wide margin.

Form factor and size

This is the 6U rack-mount build. Dimensions are 10.4 in (263 mm) H x 17.008 in (432 mm) W x 28.1 in (715 mm) D. Net weight is 246 lb (111.58 kg). It is heavy enough that two people and a rack lift are the sensible way to install it, and heavy enough that the rack's own load rating is worth checking first. Check the depth against the rack before ordering. A UPS that fits the rails but not the cabinet is the most common surprise on an install, and rear cable service space has to come out of the same measurement.

Management and monitoring

A web and SNMP management card is standard on this model, and the SmartSlot figure of one free slot is what remains after that factory card is accounted for. The data sheet records 1 free SmartSlot, which is where an accessory card goes if you add one later. The sheet records the interface ports as Serial port, USB port, Embedded network management card 3. A network management card matters more than it sounds. Without one the unit reports only to whatever is plugged into its USB or serial port, which means one machine sees the alarms and everything else finds out when it loses power.

Environment and noise

Operating temperature is 32-104 F (0-40 C). Acoustic noise is quoted at 55 dBA at one metre. Surge energy rating is 480 joules. Acoustics decide where a unit like this can live. Anything at or below the mid forties is quiet enough for an occupied office or a consulting room; above about fifty it belongs behind a door, because the fans do not stop when the load is light. The surge rating covers the everyday transients that arrive down the mains, not a direct strike. Take it as a measure of how much abuse the input stage will absorb before it stops protecting the load.

In the box

APC lists the following in the carton for this part number: CD with software, Documentation CD, Installation guide, Rack mounting hardware, Rack Mounting brackets, Rack Mounting support rails, Temperature Probe, USB cable, Warranty card and Web/SNMP Management Card. Warranty is 36 months on the UPS, 24 months on the battery. Carton contents on APC part numbers move between data sheet revisions more than you would expect, and rail kits in particular come and go. The list above is what the current sheet for this exact part number prints, and we would rather quote that than a tidier list assembled from a sibling model.

If you are protecting a rack, a closet or a plant-room load and need 10000 VA of double-conversion online backup with the outlet set described above, the APC Smart-UPS SRT SRT10KRMXLT is a sound choice, and we hold it in stock. Contact us to learn more or secure this solution for your business today.