Yaskawa Inverter Drive Z1B1B021PM 480V Z1000 Bypass

Description:

The Yaskawa Electric Z1B1B021PM Z1000 bypass inverter drive is a heavy-duty HVAC variable frequency drive designed for precise motor speed control, bypass operation, and energy-efficient performance in commercial and industrial automation systems. It is commonly installed in pumps, fans, air handling units, cooling towers, compressors, and industrial ventilation systems operating on 480V 3-phase power. Maintenance teams and system integrators use this drive for repair, retrofit, and replacement of Yaskawa Z1000 bypass VFD systems in building automation and industrial motor control applications.

Applications:

The Z1B1B021PM drive is widely used in HVAC systems, industrial ventilation equipment, chilled water systems, pumping stations, and automated motor control applications. It functions as a bypass-enabled AC inverter drive that provides adjustable motor speed control while maintaining operational continuity through intelligent bypass circuitry during maintenance or fault conditions. The Yaskawa Z1000 series is engineered specifically for building automation and energy-saving HVAC applications.

Technical Specifications:

• Manufacturer: Yaskawa Electric
• Model / Part Number: Z1B1B021PM
• Product Series: Z1000 Bypass
• Product Type: Variable Frequency Drive (VFD) / AC Inverter Drive
• Horsepower Rating: 15 HP
• Input Voltage: 480 VAC
• Input Phase: 3-Phase
• Frequency Rating: 50/60 Hz
• Rated Current: 21A–21.2A
• Enclosure Type: NEMA 1 / IP20
• Control Type: V/Hz and Open Loop Vector Control
• Output Frequency Range: 0.01–240 Hz
• Bypass Type: Intelligent 2-Contactor Bypass
• Function: Variable speed motor control with bypass capability
• Application: HVAC systems, pumps, fans, cooling towers, and industrial motor control
• Communications: Embedded BACnet, Modbus/MEMOBUS, Metasys, and APOGEE FLN support
• Installation: Wall/panel-mounted industrial drive
• Construction: Industrial-grade enclosed VFD assembly
• Status: Legacy/discontinued industrial drive system available through surplus and replacement markets

Common Replacements:

• Yaskawa Electric GA800 Drive
• Yaskawa Electric CIMR-ZU4A0021FAA
• Yaskawa Electric Z1B1B018PMG