469-P1-HI-A20-E

Product Overview

• Model: 469-P1-HI-A20-E

• Type: Motor management relay

• Functions: Phase short circuit, reduced voltage start, overload/stall protection, mechanical jam detection

Phase Short Circuit

• Pickup level: 2.0–20.0 × CT primary (step 0.1, any one phase)

• Time delay: 0–1000 ms (step 10)

• Pickup accuracy: As per phase current inputs

• Timing accuracy: +50 ms

• Elements: Trip

Reduced Voltage Start

• Transition level: 25–300% FLA (step 1)

• Transition time: 1–250 s (step 1)

• Transition control: Current, Timer, Current + Timer

Overload / Stall Protection / Thermal Model

• Overload curves: 15 standard curves, custom curve, voltage‑dependent custom curve (for high inertia starting; curves time out against average phase current)

• Curve biasing: Phase unbalance, hot/cold curve ratio, stator RTD, running cool rate, stopped cool rate, line voltage

• Overload pickup: 1.01–1.25 (service factor)

• Pickup accuracy: As per phase current inputs

• Timing accuracy: ±100 ms or ±2% of total time

• Elements: Trip and Alarm

Mechanical Jam

• Pickup level: 1.01–3.00 × FLA (step 0.01, any one phase; blocked on start)

• Time delay: 1–30 s (step 1)

• Pickup accuracy: As per phase current inputs

• Timing accuracy: ±0.5 s or ±0.5% of total time

• Elements: Trip

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