Specifications

Liebert Nfinity UPS Guide Specification
4kVA –20kVA (208/120 or 240/120) 4/03 Rev 2
SL-23956
9
2.3.4 Network Communications
The user has the option of installing an optional Intellislot card to provide HTTP supported SNMP
communication over a local area network. This card supports 10/100Mbit Ethernet over unsheilded
twisted pair connection.
2.4 ACCESSORIES (OPTIONAL COMPONENTS)
2.4.1 Modular 12 Bay Extended Battery Cabinets
The Modular Battery Cabinet is available in the 12 bay frame only. It can be pre-configured with 1 to
12 Nfinity Battery Modules installed. Battery Cabinets with less than 12 Battery Modules can be field
upgradable using the standard Nfinity Battery Module Expansion Kit. Each Extended Battery Cabinet
includes (2) Intellislot Battery Cards (IBC) and (2) 10-foot communications cables. Each Extended
Battery Cabinet requires one unused Intellislot on the rear of the Nfinity UPS and a maximum of four
Extended Battery Cabinets can be used with one Nfinity UPS.
Dimensions: Weight:
20” W x 28” D x 53” H 291 lbs. (minimum configuration)
2.4.2 Maintenance Bypass Cabinet with Optional Configurable Output Distribution
The Maintenance Bypass Cabinet provides complete “wrap-around” protection and allows the Nfinity
UPS to be pulled from service without interrupting power to the loads. The Maintenance Bypass
Cabinet controls include a manual break-before-make bypass transfer switch, UPS input disconnect
switch, and a branch rated output circuit breaker. The Maintenance Bypass Cabinet controls are
located behind a lockable front panel to provide operation security.
Maintenance Bypass Cabinet models are available with and without an isolation transformer in the
bypass path. The Maintenance Bypass Cabinet with Transformer option provides isolation in the
bypass path as well as total flexibility with utility voltages.
Every Maintenance Bypass Cabinet model is available with up to 10 output options. These options
include receptacles as well as conduit fittings with branch rated breakers. Each receptacle or conduit
fitting includes a power available indicator lamp.
Dimensions: Weight:
With Isolation Transformer 26” W x 19” D x 12” H 275 lbs.
Without Isolation Transformer 26” W x 19” D x 12” H 90 lbs
2.4.3 Configurable Output Distribution
Output distribution options are available with 6, 8, or 10 output distribution plates. Flexible conduit is
used to make the connection to the Nfinity UPS. The conduit is available in lengths of 6, 12, and 25
feet. Output NEMA Receptacle plates include a branch rated circuit breaker and an indicator lamp.
Hardwire plates with branch rated circuit breakers are also available. You can select 6, 8, or 10 output
distribution options depending on the base model selected. Sheetmetal cover plates are installed over
any remaining distribution slots not used. These slots may be upgraded in the future by a qualified
electrician. Note that removing or installing additional output distribution options will require
powering down of the connected load. All models include a 100A output circuit breaker which is rated
for 100% continuos use.
Dimensions:
10-Slot Model: 8.2” W x 29.1” D x 6.2” H
8-Slot Model: 8.2” W x 25.1” D x 6.2” H
6-Slot Model: 8.2” W x 21.0” D x 6.2” H
2.4.4 Wall Mount Maintenance Bypass Without Distribution
Liebert‟s Nfinity Wall Mount Maintenance Bypass Cabinet provides complete “wrap around”
protection and allows the Nfinity UPS to be pulled from service without interrupting power to the
loads. The Maintenance Bypass Cabinet controls include a manual bypass transfer switch, UPS input
disconnect switch, and a branch rated output circuit breaker. Indicator lamps provide visual
confirmation that the UPS Input, UPS Output, and Bypass Source are available
Dimensions: Weight:
26” W x 19” D x 12” H 48 lbs.
3.0 FIELD SERVICES (OPTIONAL)