Input:
• 100-120vac, 50/60Hz, 4.0A
Output:
• 24vdc @5A total continuous output
• Filtered and electronically regulated output
• 12 PTC protected outputs @0.500A current limited
• Class 2
• 24vdc adjustable output
• 24vdc S1 on/off switch
• Input and output status LED indicators
Protection:
• Short Circuit/Overload/Over Voltage
Supervision:
• DC power failure supervision (form C contacts)
Environmental:
• For indoor use ONLY
• Operating temperature 32° F to 120° F (0° C to 49° C) ambient
Power Distribution Module:
Page 5
Terminal Identification:
Under normal conditions, the 2500-PWR24U should be checked for proper operation annually. It is recommended to
check the output voltage and verify that 24vdc is present under normal load conditions. It is also recommended to
check the current draw to ensure that the current is within specifications.
Conforms to UL STD 2017
Specifications
Maintenance
Troubleshooting
Terminal Legend
Function/Description
L, G, N
Connections for VAC terminals: L to Hot, N to Neutral, Ground to Chassis
+ DC -
24vdc @5A cotinuous power limited output
DC Power Failure
Indicates loss of DC power, e.g. connect to annunciator/alarm panel
NC, C, NO
Relay normally energized when DC power is present. Contract rating at 1A @ 28vdc.
Earth Ground Stud
Used for making connection from enclosure to earth ground
1+ to 12+
Positive DC power outputs
1- to 12-
Negative DC power outputs
Problem
Possible Cause & Solutions
Green power LEDs are
not illuminated:
• Verify the power switch S1 on the Distribution Board is set to “ON” (Fig. 3, pg. 4).
• Verify the 2500-PWR24U is connected to a good 120vac power source.
Device does not have
power:
• Verify the green LEDs are illumninated on the 2500-PWR24U (Fig. 2 and 6, pg. 4).
• Verify that each output on the 2500-PWR24U is producing 24vdc.
