RCBO for mixed-frequency fault detection
The Siemens 5SU1354-4KK06 is a SENTRON RCBO with a 6 A overcurrent trip (C-curve) and a 30 mA Type F residual current unit. The Type F characteristic detects AC pulsating, smooth DC, and mixed-frequency residual currents up to 1 kHz.
Breaking capacity and energy limitation
Rated breaking capacity is 10 kA per EN 60898, sufficient for most residential and light commercial distribution boards fed by a 10 kA service. Energy limitation class 3 means the device limits let-through energy during a fault, reducing stress on downstream components and wiring.
Thermal derating — real-world current rating
The 6 A rating applies at 30 °C ambient. At 40 °C the continuous current derates to 5.7 A, at 50 °C to 5.4 A, and at 60 °C to 5.1 A. At 70 °C the usable current is 4.62 A.
Panel fit and mounting
Width is 36 mm (2 modular width units), depth 77 mm, height 90 mm. Installation depth is 70 mm behind the panel surface. Mounts in any orientation on standard DIN rail. Supply can enter from top or bottom. Rated IP20 when installed in a distribution board with connected conductors — it is not a standalone outdoor device.
Sourcing and lifecycle
This RCBO is in active current production. It is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time.