Electronics AC - Manual (Page 24)

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20. CONTROLLER POWER REQUIREMENTS
The model AC, FC and MC controllers were originally designed to operate from 120VAC (version A).
In late 2001 a design change was made to accommodate 90-240VAC European applications
(version B). Then, in 2002, for USA requirements, we upgraded the domestic version only, to ver-
sion C. See notes below for the serial number ranges.
Version A Version B Version C
120VAC
(replaced by version C)
NOT AVAILABLE
90-240VAC Range
NOT AVAILABLE
115VAC
ONLY
S/N prior to 01219 S/N 01219-001 to 02279-129 S/N 02279-130 and up
NOTE: Relay contacts are
rated 120VAC
NOTE: Relay contacts are
rated 120VAC
NOTE: Relay contacts are
rated 115VAC
Serial Number description:
S/N 12345-678
Digits 1-2 are for year, (01=2001, 02=2002,etc.)
Digits 3-5 are manufacturing batch lot number
Digits 6-8 are sequence number within batch lot