4
Section 100 System Installation Instructions
101. Specifications
Input
• Input voltage: Universal 120 or 277VAC
• Input frequency: 60HZ ±2%
• Operating Temperature: 20°C to 30°C (68°F to 86°F)
• Input Surge Protection: Meets UL 924
Output
• Output voltage: Universal 120 or 277VAC, 60HZ. Other voltages available upon request
• Output regulation: (static) ±5% based on a 0% - 100% resistive load
• Minimum loading: none required
• Output distortion: Less than 3% THD linear load
• Load power factor: .88 lead to .88 lag
• Output frequency: ±0.3 Hz during emergency
• Time to transfer to inverter after a utility power failure: <1 second
Battery
• Battery type: Maintenance free sealed lead calcium
• Battery charger: Fully automatic dual-mode with temperature compensation
• Recharge time: Meets UL requirements (96 Hours)
• Battery protection: Automatic low-battery voltage disconnect and reverse polarity protection.
• Battery switch: Also used as battery isolator
• Standard battery: Sealed lead-calcium: 10-year life
• Battery voltage: 24 or 48 (system dependent - See Table 1 below)
• Runtimes: 90 minutes standard.
• Operating temperature: 20°C to 30°C (68°F to 86°F)
• Relative humidity: 95% non-condensing
Note: Battery performance rated at 25°C (77°F)
Table 1
System Model
Number
Type
Input/ Output
Volts
Capacity For
1
1
/
2
Hours
Battery Volt-
age (VDC)
Cabinet Dimensions
System Weight*
In Watts
Length
Height
Depth
(Lbs.)
(Kg.)
LG125S
Surface
120/277
110
24
165/8”
(42.2cm)
115/8”
(29.5cm)
4 3/8”
(11.1cm)
42
19
LG125R
Recessed
120/277
110
24
181/8”
(46.0cm)
131/8”
(33.3cm)
4 3/8”
(11.1cm)
42
19
LG125T
Ceiling
T-Grid
120/277
110
24
237/8”
(60.6cm)
61/4”
(15.9cm)
8.0”
(20.3cm)
43
20
LG250S /
LG250SI
Surface
120/277
220
48
165/8”
(42.2cm)
115/8”
(29.5cm)
6 3/8”
(16.2cm)
60
27
System Weights shown include installed batteries
Table 2
System Model
Number
On-Line
System Effi-
ciency (Full
Load)
Number Of
Batteries
Battery Volt-
age (VDC)
Battery Cur-
rent (Amps)
AC Input Current
Thermal Output In BTUs
120VAC
(Max.)
277VAC
(Max.)
On-Line
Emergency
LG125S,R,T
98%
2
24
5.7
1.2
0.52
9
95
LG250S / LG-
250SI
98%
4
48
5.6
2.4
1.1
18
167