Allen-Bradley B025-AE-EN drive

The Allen‑Bradley B025‑AE‑EN is a 25 HP adjustable‑frequency AC drive from the 1336 Plus II series, rated for 380–480 V AC and housed in a NEMA 1 enclosure. Common issues with this model include over‑temperature shutdowns due to fan or heat‑sink failure, phase loss or imbalance triggering protection trips, and capacitor degradation causing erratic speed control. Initial diagnostics should verify the 3‑phase supply voltage and continuity of the motor leads, inspect the internal cooling fan and heat sink for dust or mechanical blockage, and review any fault codes on the drive’s panel display or connected PLC.[oss-gpt-20b]

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