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Table 5.3 contains columns for calculating current draws. For each column, calculate the
current and enter the total (in amperes) in the bottom row. When finished, copy the totals
from Calculation Column 2 and Calculation Column 3 to Table 5.4 on page 130.
Table 5.3 System Current Draw Calculations
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Table Footnote
1. All eight ADT-ACM-8R relays activated on a single module.
2. All annunciator LEDs on
3. ADT-UDACT actively making pho ne call to central station. If the normally open contact is used, current
consumption increases to 100 mA.
4. ADT-LDM-32 with LEDs on
5. If using the Reverse Polarity Alarm output, add 0.005 amps; if usin g the Reverse Polarity Trouble output, add
another 0.005 amps.
6. Refer to the Device Compatibility Document for standby current.
7. Must use compatible listed Power Supervision Relay.
8. Maximum alarm current for each sounder base is 0.015 amps which must be supplied by aux. 24 VDC source.
9. Current limitation of Terminal TB4 circuits is 3.00 amps per NAC.
10.The total standby current must include both the resettable (TB3 Terminals 1 & 2) and nonresettable (TB3
Terminals 3 & 4, 5 & 6) power. Caution must be taken to ensure that current drawn from these outputs during
alarm does not exceed maximum ratings specified. Current limitations of TB3 circuits is 3.0 amps per output
11.Total current draw listed above cannot exceed 7.2 amps.