Hardwiring The Ups Input - Dell H955N User Manual

Hardwiring the UPS Input

WARNING:
Only qualified service personnel (such as a licensed electrician) shall perform the electrical
installation. Risk of electrical shock.
The Dell Line-Interactive Rack hardwired models require a dedicated branch circuit that meets the
following requirements:
S
5600W/208V models only:
protection
S
5600W/230V models only:
provide short circuit and overcurrent protection
S The protection device requires a two-pole disconnection device between the UPS output and the
load (see Figure 17)
S The breaker must be wall-mounted and be readily accessible to the operator
S For Europe, the breaker must meet the IEC/EN 60934 standard and have a contact air gap of at
least 3 mm
S 200–240 Vac
S Single-phase
- 5600W/208V model is phase-to-phase (can also be used on a split-phase 120/240 Vac input)
- 5600W/230V model is phase-to-neutral
S 50/60 Hz
S Flexible metal conduit (recommended for ease of service and maintenance)
Figure 17. Circuit Breaker Diagram
40A 2-pole circuit breaker to provide short circuit and overcurrent
32A for Europe (or 35A for North America) 2-pole circuit breaker to
Wall
Line
AC Mains
Neutral
2-Pole
Breaker
UPS
Installation
|
27