Dell UPS Site Preparation Guide, EMEA (230V) Revision 2, December 2012
Optional accessories for Dell UPS
External Battery Module (EBM)
Increases the battery runtime (autonomy) by approximately 3 times
Network Management Card
(NMC)
Improves communication with >1 server and is mandatory for
virtualization
Environmental Monitoring Probe
(EMP)
Measures rack temperature and humidity (plus 2 x relay contacts).
Requires network management card. Data rolls up into UPS Management
software.
32 Amp, 3m (non-locking)
Electrical Input Cord
1
UPS input cable pack providing a 3m cord with IEC309 32A (IEC60309
332P6S, non-locking, IP44 type) Commando plug. Also includes plastic
stuffing gland (strain relief).
Rack Preparation:
Rack Requirements for the Dell UPS
Dell Rack UPS are suitable for installation into 19” 4-post racks. Reserve space for UPS and EBM at bottom of rack.
Rack types supported are: EIA/ECA-310-E (includes Dell and other common rack suppliers); and, support 4-post
square or round (non-threaded) type holes. If round hole, use rack with 7.0mm diameter (unthreaded). The Dell rack
UPS and rack EBM include ReadyRails with a minimum retraction of 517 mm (20.35") and maximum extension of 783
mm (30.8").
Electrical Preparation:
Electrical Requirements for the Dell UPS
Minimum Wire Size
(Live Neutral/Ground)
Note: Overcurrent protection should be ‘slow-break’, suitable for devices with a high inrush current. Normally this should be a fuse or
circuit breaker with a Type-C or Type-3 rating.
Electrical Requirements for the REPO Switch (Remote Emergency Power Off)
REPO is used to shut down the UPS from a distance. For example, this feature can be used for shutting down the
load and the UPS by thermal relay, in the event of room over-temperature. When REPO is activated, the UPS shuts
down the output and all its power converters immediately. The UPS logic power remains on to issue an alarm.
Supported UPS are 3750W, 4200W (Online) and 5600W (Line Interactive) models. 5600W Online and 10kW Online UPSs do not
have an input cord option.
