16 A, K characteristic, 3-pole — Betagard MCB for industrial loads
The Siemens 5SL7316-3RC is a 3-pole miniature circuit breaker from the Betagard line, rated 16 A with a K tripping characteristic and a 15 kA breaking capacity under both IEC/EN 60898 and IEC 60947-2.
The Betagard series is Siemens' economy MCB line for industrial and commercial applications where full SENTRON functionality is not required. It shares the same 76 mm depth and 90 mm height as the SENTRON 5SL4 and 5SY4 series, so it fits the same DIN-rail enclosures and busbar systems.
Halogen-free and silicon-free construction, with a sealable design for tamper-proof locking.
Delta: Betagard vs SENTRON 5SL4363-7
The closest functional peer within the Siemens MCB family is the SENTRON 5SL4363-7 — same 3-pole, 16 A, same 76×54×90 mm footprint, same 15 kA breaking capacity. The deciding difference is the tripping characteristic: the Betagard 5SL7316-3RC uses a K curve (for motor/inductive loads), while the 5SL4363-7 uses a C curve (for general-purpose resistive/light inductive loads). If your panel was specified around a C-curve breaker and you swap in a K-curve, you may lose coordination on downstream branch circuits with low inrush — verify the load type before substituting.