User Manual

System 3
TM
Battery Modules
3177
s Industry, Inc.
Building Technologies Division
s
Data Sheet
Fire Safety Products
System 3
TM
Battery Modules
Models BC-35 and BE-35
Product Overview
The System 3 Battery Charger / Transfer Module
(Model BC-35) and the Battery Extender Module
(Model BE-35) are each designed to supply
automatic, 24 VDC emergency back-up power to
the System 3 panel during main-power outages.
Both models are of solid-state circuitry. Model
BC-35 contains a yellow Trouble-event LED
indicator. Under Normal conditions, the System
3 panel is powered directly from the main power
supply. When the system is equipped with
emergency power, the (calcium grid) lead-acid
or nickel-cadmium batteries are maintained at
full charge through operation of either Model
BC-35 or the combination Models BC-35 / BE-35
charging circuit.
In the event of an AC power failure, the
System 3 panel is transferred to battery
power. Model BC-35 provides the following
circuit-function features:
1. Controls charging current and float-voltage values
to maintain the batteries in optimal condition
2. Provides accurate AC-to-battery and
battery-to-AC transfer
3. Shuts off battery power-supply source when
discharging battery reaches an unacceptable,
deep discharge-value point
4. Supervises battery placement, along with
high-and-low-battery voltage points
5. Withstands shorted battery-terminal connections,
along with preventing the possibility of reversed-
battery polarity
6. Charging path of Models BC-35, BE-35 are
supervised for placement
The following chart details the battery-range
capacities for the Models BC-35 and BE-35
combination:
Battery-Range Capacity
Used for Model{s}
4.5 to 25 AH BC-35
26 to 55 AH BC-35 and one [1] BE-35
56 to 75 AH BC-35 & two [2] BE-35 modules
76 to 100 AH
BC
-35 & three [3] BE-35 modules
Automatic operation
Light-emitting diode (LED) Trouble-event indicator
For lead-acid or sealed-nickel cadmium batteries
Battery-circuit supervised
System transfer from main-power supply to
battery-mode operation
UL 864 9
th
Edition Listed and ULC Listed;
FM, CSFM, NYCFD and City of Chicago Approved
ARCHITECT AND ENGINEER SPECIFICATIONS
BE-35
(Battery Extender)
BC-35
(Battery Charger / Transfer)

Summary of content (2 pages)