Emerson | Lorain BD 800 | Data Sheet | Emerson Lorain BD 800 Data Sheet

Lorain® BD 800
800 Amp Battery Disconnect
Key Features
Feature-rich design provides flexibility; small footprint
allows for relay rack mounting.
Small footprint and multiple
wiring attachment points
allow for ease of installation
Current monitoring is
provided by a 25mV shunt
included within each
breaker and fuse
Voltage trip breakers
permit remote shutdown/
Safety features include
a Lock Out-Tag Out (LO/
TO) attachment point
and a door latch that is
tool-secured for restricted
Alarm options include a
Form C, CBA/FA alarm and a
door open alarm
An LED indicator provides a
visual display of the status
of the breaker/fuse for each
Disconnect assists in
compliance with local codes
586400100 List 1 e/w Fuse
Product Overview
The Lorain® BD 800 provides disconnection and overcurrent protection for +24 VDC
or -48VDC battery strings. Disconnects are available in single and dual positions. Overcurrent protection is provided by a user-specified fuse or breaker rated from 300 to 800
amps per position. A shunt, included with the over-current protection device, measures
charge and discharge current and can be monitored by a Lorain® VPS or LVS MCA,
Emerson Monitoring Equipment, or any monitoring system using a 25mV shunt input.
The disconnect can be wall-mounted or 23" rack mounted as required. Breakers equipped
with voltage trip coils can be used to satisfy code requirements for EPO circuits.
The built-in shunt measures charge and discharge current for the batteries. Battery damage is prevented and battery life is increased with the use of a built-in PS shunt card and
an optional VPS or LVS MCA set up to limit battery recharge current. Voltage trip breakers
permit remote operation. An EPO switch may be used to comply with local and national
fire codes (NEC).
Safety and security features include a cover that can be locked in place during maintenance operations to prevent access to the battery breakers or fuses. A door alarm switch
provides a set of contacts that will change state whenever the door is opened. Any access
or operation of the door can be monitored using this feature. The door latch can also be
tool-secured for restricted access.
011D-LBD800 / 1206
Lorain® BD 800
The Emerson Network Power Battery Disconnect is ideal
for a data center, wireless site or central office applications.
For additional specification, engineering or installation
information, specify model Lorain® BD 800, specification
number 586400100 for disconnect.
586400100 List 2 e/w Breakers
Technical Specifications
Rating (Amps)
300-800 per position
Rated Voltage
Operating Voltage
Max Size of Overcurrent Device
800 Amps Breaker/Fuse
Dimensions (H x W x D)
Single: 6U x 21-3/8" x 7-1/4" (265mm x 543mm x 184mm)
Dual: 13U x 21-3/8" x 7-1/4" (576mm x 543mm x 184mm)
Single: Net 40 lbs., Shipping 50 lbs.
Dual: Net: 76 lbs., Shipping 90 lbs.
Int Rating (kIAC) Fuse/Breaker
100kAIC Fuse/50kAIC / Breaker/10kAIC Disc
UL/cUL Listed to 1801
FA/CBA Alarm Contact Rating
0.5A@125VAC, 1.0A@30VDC, 0.3A@110VDC
Door Alarm Contact Rating
1A-125VAC, 2A-24VDC, 0.1A@125VDC (Form C contacts)
Operating Temperature
Wall or 23" Relay Rack Mounted
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While every precaution has been taken to ensure accuracy and
completeness herein, Emerson Electric Co. assumes no responsibility,
and disclaims all liability, for damages resulting from use of this
information or for any errors or omissions. Specifications subject to
change without notice.
011D-LBD800 / 1206
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