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Siemens 5SU1646-6FP10 — Residual Current Breakers (RCCB/RCBO)

Siemens SENTRON 5SU1646-6FP10 RCBO, 4P, 10 A, B-curve, 6 kA

MPN5SU1646-6FP10
Active

Siemens SENTRON RCBO, 4P, 10 A (30 °C), B-curve, 6 kA (EN 60898), 72 mm wide, IP20.

Source DocumentedChannel stated on listing & quote
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Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

5SU1646-6FP10 — Electrical Ratings
ParameterValue
Number of poles4
Overvoltage categoryIII
5SU1646-6FP10 — Identification
ParameterValue
Product designationRCBO
Product design / constructionInstantaneous
5SU1646-6FP10 — Mechanical
ParameterValue
Mounting positionany
Width in modular units4
Maximum70 °C
Minimum-40 °C
Width72 mm
Height85 mm
Depth72 mm
Installation depth70 mm
5SU1646-6FP10 — Environmental
ParameterValue
IP degree of protectionIP20, if the distribution board is installed, with connected conductors
5SU1646-6FP10 — Electrical
ParameterValue
Tripping Characteristic ClassB

Product details

Rated 10 A at 30 °C with a B tripping characteristic, it clears faults at 6 kA per EN 60898 and IEC 60947-2. The 4-pole design (all poles protected) suits three-phase loads where neutral protection is also required.

In a typical enclosed panel running at 40 °C, the continuous current drops to 9.6 A; at 50 °C it's 9.1 A; at 60 °C it's 8.6 A. If your load draws a steady 9.5 A and the panel ambient hits 45 °C (9.4 A derated), you're at the margin — step up one frame or improve ventilation. The 4-module-wide footprint (72 mm) on DIN rail means this fills four 18 mm positions; plan your gland-plate layout accordingly.

Installation notes

Mounts in any position on DIN rail.

Frequently asked questions

Will 5SU1646-6FP10 drop into a panel specified around 5SU9354-7KK16 without rewiring?

Both are SENTRON RCBOs on the same DIN-rail mounting system, so the mechanical fit and wiring footprint are identical. However, confirm the pole count, rated current, and tripping characteristic match your circuit design before swapping — the 5SU1646-6FP10 is a 4-pole, 10 A, B-curve device.

MPN
5SU1646-6FP10