ABB S281-K4, DIN Rail Mount Circuit Breaker, 4 A, current production, 0.12 kgs.
| Parameter | Value |
|---|---|
| Weight | 0.12 kgs |
It protects branch circuits against overloads and short circuits, with the 4 A rating sized for smaller loads like control transformers, signal-conditioning supplies, or lighting circuits within a panel.
The S281-K4 is sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time — no stock or price figures are published here.
No — the S273-K6A is a three-pole breaker (0.36 kgs), while the S281-K4 is single-pole (0.12 kgs). They serve different circuit configurations; the S273-K6A replaces three individual single-pole breakers in a multi-phase application. They are not drop-in interchangeable without rewiring the panel layout.