INSTRUCTION MANUAL
AUTO-TROL
BOOK#091-36
Model 091-36
A CONTROL TO PROTECT ALTERNATING CURRENT
LOADS FROM LOW FREQUENCY POWER INPUT
3 YEAR WARRANTY
KUSSMAUL ELECTRONICS CO., INC.
170 CHERRY AVE., WEST SAYVILLE, N.Y. 11796
TEL: in NY 631-567-0314 TOLL FREE: 800-346-0857 FAX: 631-567-5826
INTRODUCTION:
The AUTO-TROL Low Frequency cutout relay is intended to protect A.C. loads by
disconnecting them from the power source when the frequency of that power source
drops below 60 Hz. This prevents excessive current draw and motor burnouts.
The AUTO-TROL is a solid state control operated from the vehicle’s +12 volt system.
It detects the input A.C. voltage and whenever the frequency of that voltage is below
60 Hz. deenergizes it’s power output relay. The AUTO-TROL is wired to the vehicle’s
battery and is continually energized. It’s current drain is negligible and will have no
effect on the battery.
INSTALLATION:
1.0 Mount the AUTO-TROL in a suitable location and wire as illustrated
in figure 1.
NOTE:
The “neutral” of the A.C. generator must be connected
to the vehicle ground and battery “negative”. If this
does not exist, contact Kussmaul Electronics Co. for
special instructions.
2.0 Wire the White/Red wire to the +12 Volts D.C.
3.0 Wire the Black wire to the vehicle ground.
4.0 Wire the A.C. power source to terminal 87 on the relay. Note that this
terminal already contains an orange colored wire. The orange wire is the
“sense” wire, it must remain on terminal 87 with the power input.
5.0 Wire the load that is being protected to terminal 30.
THIS COMPLETES THE INSTALLATION. PLEASE CHECK ALL WIRING
TEST:
1.0 Start the engine and operate the generator at it normal speed and frequency (60 Hz). The Green
LED indicator on the side of the AUTO-TROL should be lit. The relay is closed and the load
energized.
2.0 Set the engine to low idle to produce a generato frequency less than 50 Hz. The Green LED
indicator will be “off” and the load disconnected.
SPECIFICATIONS:
Relay energize frequency: 58 +/-2 Hz
Relay deenergize frequency: 55 +/-2 Hz
Relay Current Rating: 75 Amp. resistive 60 Amp. inductive 250 Amp. (1 sec.)
Wire Size: #6 AWG
AUTO-TROL
to 87
to 30
BLACK
WHITE/RED
+12 VOLTS
GROUND
115 VAC
LOADS
Figure 1 AUTO-TROL 091-36 WIRING
INSTALLATION RECORD & WARRANTY
Date Installed
Installed By
Vehicle Identification
Vehicle Owner
WARRANTY
All product of Kussmaul Electronics Company Inc. are warranted to
be free of defects of material or workmanship. Liability is limited to repairing or replacing at our factory, without charge, any material or defects
which become apparent in normal use within 3 years from the date the
equipment was shipped.
Kussmaul Electronics Company, Inc. shall have no liability for damages of any kind to associated equipment arising from the installation and
/or use of the Kussmaul Electronics Company, Inc. products. The purchaser, by the acceptance of the equipment, assumes all liability for any
damages which may result from its installation, use or misuse, by the
purchaser, his or its
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