74-06799-000-D 2/96
©1996 Radionics
D9124 Operation & Installation Manual
Page 64
Specifications
D9142 24VDC Power Supply
Power Input
120 VAC nominal, 60 H
Z
, 360 VA
Power Output
One output, 4 Amps
DC output voltage AC applied
22VDC minimum
28VDC maximum*
DC output voltage, No AC
18.9VDC minimum*
27VDC maximum
Supervision Output Relay
Form C Rated for 2 A @ 12 or 24
VDC
Operating Temperature
32
°
- 122
°
F (0
°
- 50
°
C)
Humidity
5% to 85% @ 86
°
F (30
°
C)
Non Condensing
Batteries
The following 12V Sealed Lead Acid
Batteries may be used: 7 Ah,
12 Ah, 14 Ah, 17.2 Ah, 24 Ah, 36
Ah, 38 Ah.
AC Line Fuse F1
Type 3 AG 4 Amp 250V Slow Blow.
RPN: 57-01338-004
Low Battery Voltage
Battery trouble threshold
22VDC minimum
24.1VDC maximum
Battery restoral threshold
24.2 VDC minimum
26.5VDC maximum
Load Shed
Voltage trouble threshold
18.9VDC minimum
20.5VDC maximum
Voltage restoral threshold
23.1VDC minimum
24.7VDC maximum
* Important: Connection of 24 volt indicating and initiating devices that have a minimum
operating voltage greater than 18.9 VDC or a maximum operating voltage less than 28
volts DC may be damaged or fail to operate! See page 6, 24 Volt DC Output.
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