The Siemens 5SU1354-7RC10 is a SENTRON RCBO (residual current operated circuit breaker with overcurrent protection) rated 10 A with a 30 mA residual current trip, Type A, C characteristic. Two-pole, single-module-width design (36 mm wide, 2 MW) fits standard DIN-rail distribution boards. Breaking capacity is 10 kA per EN 60898 and 20 kA per IEC 60947-2, giving selectivity headroom in residential and light commercial sub-distribution.
What the ratings mean for fit
The C characteristic means the magnetic trip operates at 5 to 10 times In (50–100 A), suited for circuits with moderate inrush — lighting banks, small motor loads, or general socket outlets. Type A residual current detection catches pulsating DC fault currents, covering single-phase rectified loads like switched-mode power supplies or LED drivers. The 30 mA sensitivity provides personal protection against direct contact. Breaking capacity splits by standard: 10 kA under EN 60898 for residential final circuits, 20 kA under IEC 60947-2 for industrial panel coordination. The 20 kA figure gives the designer more fault-current headroom when the device sits downstream of a transformer with higher prospective short-circuit current.
Mounting and integration
Mounts on DIN rail, any position. Two-module width (36 mm). Supply top or bottom. IP20 with connected conductors. Depth 70 mm.
Lifecycle and sourcing
Current production. Sourced and quoted to order against RFQ through independent distribution.