Product Description
CONTACTOR (24 VOLT)
Frequently Asked Questions
Q: What voltage does the SW190B-142 contactor operate at?
A: The SW190B-142 is a 24-volt contactor designed for 24V electric lift trucks and material handling equipment.
Q: Is the SW190B-142 compatible with the SW190-142?
A: Both are 24-volt models, but the B-variant (SW190B-142) may have different terminal connections, coil specifications, or physical mounting dimensions than the standard SW190-142. Do not assume interchangeability. Verify exact part numbers against your equipment documentation or contact us for cross-reference confirmation.
Q: What materials are contactors made from?
A: Contactors consist of a coil (electromagnet), contacts (switching elements), and a frame. Contacts are typically made from silver alloy or copper-alloy materials to withstand electrical arcing and repeated switching cycles. The coil is wound copper wire, and the frame is usually steel or composite material.
Q: How often should a contactor be replaced?
A: Contactor replacement intervals depend on duty cycle, ambient temperature, and operating conditions. Heavy-duty applications may need replacement every 2 to 4 years. Light-duty applications may last 5 years or longer. Replace contactors showing erratic operation, clicking sounds, or failure to engage properly.