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APC Symmetra RM 4kVA Scalable to 6kVA N+1 208/240V SYH4K6RMT - NEW

APC Symmetra RM 4kVA Scalable to 6kVA N+1 208/240V
Model: SYH4K6RMT

2.8 KWatts / 4.0 kVA
Input: Hard Wire 3-wire (2PH + G), NEMA L6-30P (30A Twist-Lock)
Output: (2) NEMA L6-20R Battery,
(1) NEMA L6-30R Battery
New, Fresh Stock 

Availability: In stock

Shipping Info
  • This item is in stock and ships within 1 business day
  • We will gladly accept returns for any reason within 30 days of receipt of delivery
  • Continental USA & Canada



Manufacturer: APC
Model: APC Symmetra RM 4kVA Scalable to 6kVA N+1 208/240V
Condition: New, Fresh stock
Part Number: SYH4K6RMT
Maximum output: 2.8 KWatts / 4.0 kVA
Typical backup time at half load: 30 minutes (1.4 KWatts)
Typical backup time at full load: 12.7 minutes (2.8 KWatts)
Output Waveform: Sine wave
Warranty: 1 Year Full Replacement Warranty

APC Symmetra RM 4kVA Scalable to 6kVA N+1 208/240V w/208 to 120V Step Down Transformer - SYH4K6RMT - User's Manual

SYH4K6RMT Specifications:


Output Power Capacity

2.8 KWatts / 4.0 kVA

Max Configurable Power

4.2 KWatts / 6.0 kVA

Nominal Output Voltage


Output Voltage Note

Configurable for 208 or 240 nominal output voltage

Efficiency at Full Load

89.0 %

Output Voltage Distortion

Less than 5% at full load

Output Frequency (sync to mains)

57 - 63 Hz for 60 Hz nominal

Output Frequency (not synced)


Load Crest Factor

up to 5 : 1

Waveform Type

Sine wave

Output Connections

(2) NEMA L6-20R - Battery Backup 
(1) NEMA L6-30R - Battery Backup


Internal Bypass (Automatic and Manual)


Nominal Input Voltage


Input Frequency

50/60 Hz +/- 5 Hz (auto sensing)

Input Connections

Hard Wire 3-wire (2PH + G), NEMA L6-30P (30A Twist-Lock)

Cord Length

10 feet - 3.05 meters

Input voltage range for main operations

155 - 276 V

Efficiency at Full Load

85.0 %

Input Power Factor at Full Load


Batteries & Runtime:

Battery Type

Maintenance-free sealed Lead-Acid battery with suspended electrolyte : leakproof

Included Battery Modules


Typical recharge time

4 hour(s)

Replacement battery


Battery Slots Empty


Replacement battery cartridge note

UPS accepts 1-2 battery packs

Extendable Run Time


Extended Run Options


Typical Backup Time at Half Load

30 minutes (1.4 KWatts)

Typical Backup Time at Full Load

12.7 minutes (2.8 KWatts)

Communications & Management:

Interface Port(s)

DB-9 RS-232 , RJ-45 10/100 Base-T

Pre-Installed SmartSlot™ Cards


Control panel

Multi-function LCD status and control console

Audible Alarm

Alarm when on battery : distinctive low battery alarm : configurable delays

Emergency Power Off (EPO)


Available SmartSlot™ Interface Quantity



Maximum Height

14.0" (35.5cm)

Maximum Width

19.0" (48.3cm)

Maximum depth

28.75" (73.0cm)

Net Weight

229.0lbs (104.09kg)

Additional Info

Additional Info

Input No
Output(VA) No
Type No
Output Voltage No