27770-004

Frequently Asked Questions

Q: What is the coil voltage for contactor assembly 27770-004?
A: The coil input is 24VDC nominal. This is a low-voltage control signal that activates the main power contacts. Confirm your control system supplies 24VDC before ordering. Incorrect voltage supply damages the coil and prevents contactor operation.

Q: What amperage can contactor assembly 27770-004 handle continuously?
A: The contactor is rated for 100 amperes continuous current. This is the steady-state current limit for main contact operation. Exceeding this rating causes excessive heat, contact erosion, and contactor failure. Size your power distribution accordingly.

Q: What is the contact material in contactor 27770-004?
A: The main contacts use silver alloy construction for low resistance, high conductivity, and durability under repetitive switching. Silver alloy contacts withstand arcing, reduce heat generation, and maintain low voltage drop over many duty cycles.

Q: How is contactor assembly 27770-004 mounted?
A: The contactor features panel mount configuration with a phenolic resin enclosure body and steel mounting plate. This design allows secure mounting to control panels and power distribution cabinets in electric lift truck charging or drive systems.

Q: What electric lift truck models use contactor assembly 27770-004?
A: OEM part number 27770-004 is used in electric lift trucks from major manufacturers. No cross-reference part numbers are identified from approved sources, so this is the primary reference designation. Contact us with your equipment model and we can confirm if this contactor matches your application.

Q: Can contactor 27770-004 be used in AC power circuits?
A: This is a DC contactor with 24VDC coil control. Do not use in AC circuits. The silver alloy contacts and phenolic enclosure are rated for DC switching duty in lift truck traction and charging systems. Using in AC power causes contact degradation and equipment damage.