3.0"
.1875" dia. typ.
2.08"
6.06"
2.7"
5.5"
3.88"
MODEL 271
TIME MARK is a division of
3-Stage Alternator
First on-first off operation
Alternates triplex systems
Replaces mechanical alternators
DESCRIPTION
The Model 271 3-Stage Alternator is designed to
control the motor starters in a stage pumping or
compressor system. Its purpose is to ensure that only
the required motors are used, and that each motor
receives the same average amount of run time. Motors
are sequenced in a first on-first off cycle.
Potential uses include water supply systems, air
compressor systems, sewage disposal plant systems,
storage tank filling or emptying systems, water recycling
systems, irrigation systems or sump pump applications.
Operation:
None Closed All motors off
S3 Closed C1 or C2 or C3 Running
S3, S2 Closed C1 & C2, or C2 & C3, or C3 & C1 Running
S3, S2, S1 Closed
DIMENSIONS
C1, C2, C3 Running
SPECIFICATIONS
MODEL 271
Input voltage 120VAC
Power consumption
Transient protection 2500V for 10ms
Output configuration SPST
Contact rating 2 A at 120VAC resistive
Input contacts requirement 1mA at 12VDC
Expected relay life Mech: 10 million operations
Elec: 100,000 operations at rated load
Operating temperature - 20º to 140º F
Humidity tolerance 0-97% without condensation
Case material ABS plastic
Weight 1.2 lbs.
0.05W
11/2011
© 2011 TIME MARK CORPORATION
MODEL 271
TIME MARK is a division of
3-Stage Alternator
READ ALL INSTRUCTIONS BEFORE INSTALLING, OPERATING OR SERVICING THIS DEVICE.
KEEP THIS DATA SHEET FOR FUTURE REFERENCE.
GENERAL SAFETY
POTENTIALLY HAZARDOUS VOLTAGES ARE PRESENT AT THE TERMINALS OF THE MODEL 271.
ALL ELECTRICAL POWER SHOULD BE REMOVED WHEN CONNECTING OR DISCONNECTING WIRING.
THIS DEVICE SHOULD BE INSTALLED AND SERVICED BY QUALIFIED PERSONNEL.
Installation Instructions
INSTALLATION
Connect the control wiring to the terminals with the
contact markings (refer to the diagram on the unit).
Apply power.
Note: S3 is priority closure.
ADJUSTMENT
No calibration or adjustments needed for this device.
Operation:
None Closed All motors off
S3 Closed C1 or C2 or C3 Running
S3, S2 Closed C1 & C2, or C2 & C3, or C3 & C1 Running
S3, S2, S1 Closed
C1, C2, C3 Running
TROUBLESHOOTING
Should the Model 271 3-Stage Alternator fail to operate,
check all connections. Verify that power is present, and
check all fuses. Should problems persist, contact your
local Distributor, or the Time Mark Sales department at
800-862-2875, Monday thru Friday; 8 a.m. to 5 p.m.,
CST for further assistance.
WARRANTY
This product is warranted to be free from defects in
materials and workmanship for one year. Should this
device fail to operate, we will repair it for one year from
the date of manufacture. For complete warranty details,
see the Terms and Conditions of Sales page in the front
section of the Time Mark catalog or contact Time Mark
at 1-800-862-2875.
TYPICAL APPLICATION
11/2011
© 2011 TIME MARK CORPORATION
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