Product Overview

COMPONENT
C-68
®
The largest selection of motors, components, and accessories for the HVAC/R Industry
Relays & Sequencers
MARS SERIES 332
Electric Heat Sequencers
A new simple method for selecting and replacing electric
heat sequencers with only five basic controls. Replace
sequencers in almost any existing system.
Sequencer selection:
A. Determine the number of circuits to be switched.
(Electrical rating of auxiliary switch same as main
switch.) When more than one (1) sequencer is
required the sequencers are to be wired in series
with the last switch in each sequencer energizing
the control circuit of the next sequencer.
B. Select from the chart the sequencers needed for
the number of circuits to be switched. These
sequencers may be wired in series to allow
sequencing of virtually any number of heating
elements and fans.
If the sequencers control the fan/blower circuit, the first switch
(M1-M2) of each sequencer must always control the fan. This
provides a fan interlock to insure that the fan will remain on
until all elements are de-energized.
Features:
• Solid State dependab i l i t y
• Replaces Honeywell and White-Rodgers
• Ambient rated from 20°F. to 160°F.
• Used on both separate blower and element and
combination blower and element systems
• Total 24 Volt control
• Standard double quick-connect terminals for
combination fan and element systems
• Full-load-rated auxiliary contacts
• 7.2 KW combination fan and element rated
contacts (23A. resistive, 7A. motor load)
• Non-positional
• Voltage and a mbient self compensati ng positive
temperature coefficient (PTC) heater elements
• Individually packaged with wiring diagrams for up
to seven element furnaces.
• UL and CSA listing available
Contact Rating Chart
Schematic
A1
HH
A2
M5
M6
M3
M4
M1
M2
HH
M5
HH
M6
M3
M4
M1
M2
HH
M3
HH
M4
M1
M2
HH
M3
HH
M4
M1
M2
M1
HH
M2
33243
SPST - 1 switch
33246
DPST - 2 switches
33222
(2)SPST - 2 switches
33232
(1)DPST and
(1)SPST - 3 switches
33233
(2)DPST - 4 switches
PILOT
RES DUTY
VAC AMPS FLA LRA VA
120 30 23 84 672
240 30 23 60 960
277 23 23 42 775
480 12.5 5 10 400
1 33243 6000AOM (1) 1-60 1-45
2 33246 6000EOM (1) 1-60 1-45 1-60 1-45
2 33222 51172-22 No. 1 No. 2 1-24 45-75 30-70 1-40
3 33232 51172-32 No. 1, No. 2 No. 3 1-24 45-75 1-24 45-75 30-70 1-40
4 33233 51172-33 No. 1, No. 2 No. 3, No. 4 1-24 45-75 1-24 45-75 30-70 1-40 30-70 1-40
SWITCH TIMING: MIN-MAX IN SECONDS
Switch Switch No. 1 Switch No. 2 Switch No. 3 Switch No. 4 (2)
REPLACES Sequence (Terminals (Terminals (Terminals (Terminals
NO. OF MARS KLIXON FIRST ON LAST ON M1 / M2) M3 / M4) M5 / M6) A1 / A2)
SWITCHES NO. NO. LAST OFF FIRST OFF ON OFF ON OFF ON OFF ON OFF
33243