3 — INSTALLATION AND WIRING
Curtis Model 3401T – August 2022 Return to TOC
pg. 26
OPERATING VOLTAGE
e following table describes the B+ startup and operating voltages:
Minimum Minimum Startup Nominal Maximum
8 VDC 10 VDC 12–96 VDC 120 VDC
Applying B+ voltages above 120V may damage the 3401T and is not recommended. e device is
designed to withstand reverse polarity connections continuously.
Note: All voltages listed in this manual are DC voltages.
OPERATING CURRENT
e following tables describe the B+ pin’s operating current with the LCD heater o and on:
Table 3-4 Operating Current — LCD Heater Off
B+ Voltage
(V)
Keyswitch On (mA)
Keyswitch
Off (mA)
Typical Maximum
12 166 207 112
24 80 99 56
36 56 68 40
48 45 53 33
60 39 46 29
72 36 41 27
80 34 39 26
96 33 37 25
Table 3-5 Operating Current — LCD Heater On
B+ Voltage
(V)
Typical
(mA)
Maximum
(mA)
12 760 801
24 682 703
36 650 665
48 634 642
60 615 620
72 596 600
80 584 588
96 566 568