Specifications - Bray BBU Installation & Maintenance Manual

Battery Backup Unit (BBU) —
Battery Backup Unit (BBU) 24V Specifications
CONSTRUCTION AND PERFORMANCE
Power Requirements
Power Output
Battery Monitoring
Battery Conservation
Current Draw @ 24 VAC
Current Draw of
Actuator with BBU
Power Protection
Operating Temperature
Housing
Exposed Fasteners
Wiring
Conduit Entries (2) - 3/4" NPT Terminal Block - 14 to 24 AWG.
Size wires per NEC guidelines with respect to distance and current draw.
Torque(in-lbs)
I (Amps)
load
8 Ga
10 Ga
12 Ga
14 Ga
16 Ga
18 Ga
BATTERY SPECIFICATIONS
Batteries (2)
Features
Speci cations
Operating Temperature
Leaving the battery in an unpowered state for long periods at ambient temperatures greater than 40˚F will result in excessive battery drain.
1
24-27VAC or 30-38VDC
(the minimum voltage is required to provide proper battery charging)
Use dedicated Class 2 non-bonded transformer rated 100VA per BBU
BBU output with 24VAC supply is 30-38 VDC
On failure of AC supply, battery output is 24-25.5 VDC
BBU will provide fail open or fail close operation
Local LED indicator and voltage free 2-wire normally open contact for remote monitoring
Automatically shuts-o batteries after one minute or when actuator stops
BBU only maximum 120mA standby (0.25 VA) Max. 420mA charging (10 VA)
600 lb-in - 1.9A (with load)
2,000 lb-in - 2.7A (with load)
5,000 lb-in - 4.1A (with load)
Two 5 amp, 250V fast blow, 5x20mm fuses, one for the external power output circuit and
the other for the battery output circuit
-4ºF (-20ºC) to 122ºF (50ºC) LED light may not function below -20ºF (-29°C)
Die Cast Aluminium, Polyester finish, Nema 4X (IP 65)
Stainless Steel
Max Distance Between Actuator
and Supply(ft)
600 2000
1.8 2.0
873 785
549 494
345 311
217 195
137 123
86 77
12 volt 1.4 ampere-hour (AH) rechargeable sealed lead acid battery wired in series
Valve regulated, spill proof construction allows safe operation in any position
Rugged impact resistant ABS case and cover (UL94-HB)
U.L. Recognized under le number MH 20845
Battery Case: ABS plastic
Maximum discharge current (7 minutes): 4.2 amperes
4 years, depended on ambient Temperature
Shelf Life (% of nominal capacity at 68ºF (20ºC)
1 month = 97%
3 months = 91%
6 months = 83%
Charge: -4ºF to 122ºF (-20ºC to 50ºC)
Discharge: -40ºF to 140ºF (-40ºC to 60ºC)
Storage: -40 to 140˚F (-40 to 60˚C)
The BBU should be powered up for a minimum of 12 hours
Installation & Maintenance Manual Continued
5000
3.0
524
329
207
130
82
52
1
4