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1 1
uPS Standard features
The UPS has many standard features that provide cost-effective and consistently reliable power protection.
The descriptions in this section provide a brief overview of the UPS standard features.
1 1 1 Installation features
Power wiring can be routed to the bottom of the cabinet with connections made to easily accessible terminals.
1 1 2 Control Panel
The control panel, located on the front of the UPS, contains a liquid crystal display (LCD) and pushbutton
switches to control the operation of the UPS and to display the status of the UPS system. See Chapter 6,
"UPS Operating Instructions, " for additional information.
1 1 3 Customer Interface
•
Building Alarm Monitoring – Up to three inputs in the UPS are available to connect the facility's alarm
system contacts. Some system configurations may limit the number of inputs available. The UPS uses
these inputs to monitor the building alarms in addition to the UPS status. See Chapter 7 ,
"Communication, " for additional information.
•
Mini-Slot Communication Bays – Two communication bays are standard equipment. One to two optional
Mini-Slot connectivity cards can be installed in the UPS module at any time. Mini-Slot cards are quickly
installed at the front (behind door) of the UPS and are hot-pluggable. See Chapter 7 , "Communication, " for
additional information.
1 1 4 dual Input
Dual feed models are available for 9EHD UPS. To update a single feed UPS to dual feed, field update kits for
dual feed can be purchased from Eaton. Connectors on dual feed models provide a separated bypass input to
UPS.
1 1 5 lift lugs
The cabinet can be lifted with the lift lugs which are assembled on the top cover when it is carried.
1 1 6 door Stopper
Door stopper can help to lock the door when the door is opened 105 degree.
1 1 7 maintenance Bypass
The internal Maintenance Bypass for 20-40 kVA models consists of input, output and bypass switches used to
control the AC input to the UPS the inverter output, and a Maintenance Bypass switch used to partially isolate
the UPS so that a limited number of components can be serviced without interrupting power to critical
systems.
1 1 8 advanced Battery management
A three-stage charging system increases battery service life by optimising recharge time, and protects
batteries from damage due to high current charging and inverter ripple currents. Charging at high currents can
overheat and damage batteries.
1 1 9 IP Protection Class
Degrees of protection provided by 9EHD 20-40kVA UPS enclosures is IP32.
1 2 0 Halogen-free Cables
The halogen-free cable is environmentally friendly cables that do not emit toxic fumes when burned.it is
particularly applicable to public places, such as subways, airports, ships, schools, hospitals and other
personnel-intensive and valuable areas of property.
2
Eaton 9EHD UPS (20-40 kVA, 380/400/415V) Installation and Operation Manual
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