Product Description
CONTACTOR 150A, 24V
Frequently Asked Questions
Q: What are the electrical specifications of the CL 912091 150A contactor?
A: The CL 912091 is a 150 amp, 24 volt DC contactor designed for heavy-duty switching in Clark electric lift truck motor and control circuits. The 150A rating indicates maximum continuous current capacity under standard operating conditions.
Q: Which Clark electric lift truck models use the CL 912091 150A contactor?
A: The CL 912091 is found on Clark electric lift trucks with higher amp-hour battery systems and larger drive motors. Verify your truck model, year, and motor specifications against Clark documentation to confirm this contactor is correct for your equipment.
Q: What is the purpose of the contactor in an electric lift truck?
A: The CL 912091 contactor acts as a heavy-duty electrical switch that controls power delivery from the battery to the truck motors. It engages and disengages based on control signals, protecting the electrical system and enabling motor on/off operation.
Q: What symptoms indicate a failing CL 912091 contactor?
A: Common failure symptoms include the truck motor not responding to control inputs, stuttering or intermittent motor engagement, burning smell near the electrical compartment, or corrosion and pitting visible on contactor terminals. A failed contactor must be replaced.
Q: How does contact pitting and corrosion affect contactor lifespan?
A: Repeated electrical arcing and high-amperage switching cause contact surfaces to pit and corrode, reducing electrical conductivity and increasing contact resistance. Pitted or heavily corroded contacts trigger voltage drop and motor performance loss. Inspect contacts periodically; replace the contactor when degradation is visible.
Q: Are there lower-amperage alternatives to the CL 912091 150A contactor?
A: Yes. Clark also produces the CL 912092 and CL 912093 contactors rated at lower amperages for smaller motors or lower-capacity battery systems. Use only the contactor specified for your truck motor amperage; undersized contactors will overheat and fail under load.