Issue 3
1 947280
VP-12124
24 VOLT DC SWITCHING POWER SUPPLY
INTRODUCTION
These instructions provide the specifications,
installation and maintenance information for the
VP-12124 24 Volt Power Supply.
SPECIFICATIONS
The VP-12124 is a fully regulated 24VDC, 12 Amp
switching power supply. The primary is protected by a
6.3 Amp fuse and the six, 2 amp outputs by
auto-resetting fuses. The outputs are floating with
respect to ground. The regulator will maintain 24
Volts +/-2% over the rated range of input voltages and
output loads. A greater than 12 Amp load on power
up will cause the power supply to current limit. Short
circuit protection is provided. Over voltage is provided
to limit the output voltage to approximately 28 Volts
should a failure occur within the power supply.
Outputs may be paralleled but not series connected.
Applications
The VP-12124 is designed to be used with:
• All Valcom page control units
• Valcom one-way amplified speaker assemblies
• Any application where 24VDC filtered talk battery
is required
Design Features
• VP-12124: 90-260VAC, 50/60Hz input
• Hold Up Time: 350mS Power Line Ride Through
• (6) LPS outputs (24VDC @ 2A each)
• Meets Canadian requirements classified Level 3
• Short Circuit Protection
• UL/CSA/TUV Approvals
• LED operational indicator
• EMI filtering
• Auto recovery overload protection
• 83% Efficiency Green Technology
• 3 second power-up delay to drive large capacitive
loads up to 40K µF
• Power Factor Correction
Nominal Specifications
General
Efficiency: 83% @ 12A full load
Weight: 7.7 lbs. (3.5 Kg)
Dimensions: 12.10"H x 8.70"W x 3.90"D
(30.70cm x 22.10cm x 9.90cm)
Input - VP-12124
Voltage: 90-260VAC
Frequency: 50/60Hz
Full Load Line Current: 3A @ 120V/1.5A @ 240V
Rated Power: 360 Watts
Fusing: 6.3A Fast
Output
Rated Power: 300 Watts
Voltage: 24 Volts
Current: 12 Amps (6 - 2A outputs)
Fusing: 6 - 2A, auto-reset polyswitch fuses
Ripple & Noise: 1% P-P Max
Environmental
Operating Temp: 0 to 40
o
C
Storage Temp: -40
o
to 85
o
C
Cooling: Free Air Convection
Humidity: 10 - 90% (non-condensing)
Shock:
Precautionary Notes
INSTALLATION
Mounting
The VP-12124 is designed to be wall mounted, via
mounting slots, within 7 feet of an AC receptacle.
Connections
• Connections to Valcom page control units are
shown in Figure 1.
• When using the VP-12124 with Valcom page
equipment, a strap may be added from the local
CAUTION: To reduce the risk of electric shock,
Do not remove cover.
No user serviceable parts inside.
Refer servicing to qualified service personnel.
This symbol indicates that dangerous
voltage constituting a risk of electric
shock is present within this unit.
This symbol indicates that there are
important operating and maintenance
instructions in the literature accompanying
this unit.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
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