PowerFlex 525

The Allen-Bradley PowerFlex 525 is a compact AC variable-frequency drive in the 520-series family, identified by the 25B bulletin prefix (distinguishing it from the PowerFlex 523, which carries 25A). Decoding a catalog number such as 25B-D2P3N104 reveals the full configuration at a glance: the voltage/phase position (V = 120 V 1-ph, A = 240 V 1-ph, B = 240 V 3-ph, D = 480 V 3-ph, E = 600 V 3-ph) is followed by an output-current code where "P" substitutes for a decimal point (2P3 = 2.3 A), then enclosure type (N = IP20 open chassis), HIM interface (1 = standard LCD), EMC filter presence (0 = no internal filter, 1 = integrated EN 61800-3 filter), and braking option (4 = integral brake IGBT for external resistor). This family spans a wide horsepower range, from the 25B-V2P5N104 at 0.5 HP (120 V) up to the 25B-E032N104 at 30 HP (600 V 3-phase), with popular mid-range options including the 25B-E012N104 (10 HP) and 25B-E019N104 (15 HP). Accessory parts such as the 25B-CTM1 control module and 25B-CTMFC1 front cover are also stocked. Full ratings and wiring details are available in the PowerFlex 525 Technical Data Sheet (520-TD001).