Panel fit and voltage rating
The S271-Z4A: The 440VAC rating covers most three-phase line-to-line voltages in industrial and commercial panels; the 60VDC rating suits DC control circuits or battery-backed loads.

ABB, S271 series, Miniature Circuit Breaker, S271-Z4A, 4A 1-pole, 440VAC/60VDC, DIN rail mount.
| Parameter | Value |
|---|---|
| Weight | 0.05 kgs |
The S271-Z4A: The 440VAC rating covers most three-phase line-to-line voltages in industrial and commercial panels; the 60VDC rating suits DC control circuits or battery-backed loads.
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