Panel Fit & Interchange
The S201M-B50 shares the same footprint and busbar pitch as other S200-series single-pole breakers, so it drops into an existing panel layout without re-drilling or re-wiring. If your BOM originally called for an SH201T-C16, the mechanical fit is the same — same housing, same rail clip — but the trip curve and rating differ; verify the load's overcurrent requirements before swapping.
