ABB – WB75-A (FPTN372726R1004) – Mechanical Latching Unit, 110 V AC/DC, AX06–AX8

The ABB WB‑A (part number FPTNR) is a mechanical latching module that converts standard ABB A-series contactors into latching-type contactors. Compatible with AX through AX contactor frames, this unit maintains contactor engagement even after the control voltage is removed and provides a manual reset option via a reset button.

This accessory is ideal for applications where latching behavior is required for reliability or power-saving purposes.

Key Features:

• Model / P/N: WB‑A (FPTNR)  

• Voltage Type:  V AC ( Hz), – V AC ( Hz), or  V DC  

• Tri-Voltage Rating Plate: Supports AC, AC  Hz, and DC versions  

• Compatible Contactors: ABB AX-series (A–A, AF–AF, AL–AL, etc.)  

• Mechanical Latch Function: Holds contactor closed even if coil voltage is removed; manual or electrical reset via plunger/button

• Mounting: Clicks onto contactor body; screw terminals for coil and latch wiring  

• Dimensions & Weight:  mm ×  mm ×  mm; ~. kg  

• Standards & Compliance: CE, UL-recognized, RoHS; HS code