LiftMaster K71-B3PH Internal Brake Solenoid Kit 230/460V

Replacement Brake Solenoid Kit for Industrial-Duty Slide and Trolley Operators

The LiftMaster K71-B3PH Internal Brake Solenoid Kit (230/460V, 3-Phase) is a genuine OEM replacement designed for LiftMaster industrial-duty slide and trolley operators. This high-voltage solenoid assembly provides precise motor braking control, ensuring smooth operation and reliable stopping power in heavy-duty commercial and industrial applications.

Key Features

• Genuine LiftMaster OEM replacement part
• Designed for 230/460V three-phase power systems
• Includes mounting plate, wiring, linkage, and hardware
• Ensures accurate brake engagement for heavy operators
• Ideal for high-cycle and industrial-duty environments

Technical Specifications

• Part Number: K71-B3PH
• Alternate References: 71-B3PH, 71-B23PH
• Voltage: 230/460V AC, 3-Phase
• Component Type: Internal Brake Solenoid Kit
• Compatibility: LiftMaster Industrial-Duty Slide & Trolley Operators
• Includes: Solenoid assembly, mounting plate, cable, linkage, and hardware

Compatible Models

• GSD – Heavy-Duty Industrial Slide Operator
• GT – Heavy-Duty Industrial Trolley Operator
• SL585U / SL585UL – AC Heavy-Duty Industrial Slide Gate Operators
• SL595U / SL595UL – AC Heavy-Duty Industrial Slide Gate Operators

Conclusion

The K71-B3PH Internal Brake Solenoid Kit provides dependable braking performance and safety for LiftMaster 3-phase operators, making it a critical replacement component for maintaining industrial gate and door reliability.