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Siemens 5SU1653-1KL16 — Residual Current Breakers (RCCB/RCBO)

Siemens 5SU1653-1KL16 SENTRON RCBO, 16A C-Curve, 1P+N, 4.5kA

MPN5SU1653-1KL16

Siemens SENTRON 5SU1 RCBO, 1P+N, 16 A rated, C-curve trip characteristic, 4.5 kA breaking capacity per EN 60898, 2 MW (36 mm).

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

5SU1653-1KL16 — Electrical Ratings
ParameterValue
Number of poles2
Overvoltage categoryIII
5SU1653-1KL16 — Identification
ParameterValue
Product designationRCBO
Product design / constructionInstantaneous
5SU1653-1KL16 — Mechanical
ParameterValue
Mounting positionany
Maximum5.6 W
Width36 mm
Height90 mm
Depth77 mm
Installation depth70 mm
5SU1653-1KL16 — Environmental
ParameterValue
IP degree of protectionIP20, if the distribution board is installed, with connected conductors
5SU1653-1KL16 — Electrical
ParameterValue
Tripping Characteristic ClassC

Product details

The Siemens 5SU1653-1KL16 is a SENTRON RCBO — a combined residual-current and overcurrent protective device — in a 1P+N, 2-module (36 mm wide) package.

Panel fit and installation

At 36 mm wide (2 width units) and 90 mm tall, with a 77 mm depth and 70 mm installation depth, this RCBO fits standard DIN-rail distribution boards. Power dissipation is 5.6 W at rated load, so factor that into the enclosure thermal budget if you're packing multiple units side by side.

Above that, derate per the published curve: 15.2 A at 40 °C, 14.88 A at 45 °C, 14.4 A at 50 °C, 13.92 A at 55 °C, 13.6 A at 60 °C, 12.96 A at 65 °C, and 12.32 A at 70 °C. If the panel sits in a hot machine cabinet or near a heat source, use the 55 °C figure (13.92 A) as your continuous-load ceiling.

Overvoltage category III (permanent connection to the fixed installation) and energy limiting class 3. The functional designation per DIN EN 61346-2 and DIN EN 81346-2 is F (protective device).

Frequently asked questions

Where can I buy 5SU1653-1KL16 and how do I get a price?

This part is sourced and quoted to order against an RFQ through independent distribution. Submit a request for quote (RFQ) to confirm current availability and pricing — no stock count or price figure is published here.

What is 5SU1653-1KL16's listed depth?

The device depth is 77 mm, with an installation depth of 70 mm. That 7 mm difference accounts for the front bezel and toggle overhang beyond the DIN-rail clip.

What wire sizes does 5SU1653-1KL16 accept?

Terminals accept solid or stranded conductors from 0.75 mm² up to 35 mm² — roughly 18 AWG to 2 AWG. That covers most final-circuit wiring up to 50 A feeder taps.

Will 5SU1653-1KL16 drop into a panel specified around 5SL6563-7BB without rewiring?

Both are 2-module (36 mm) DIN-rail devices with similar terminal ranges, so the physical swap is straightforward. But the 5SL6563-7BB is a different series (5SL MCB/RCCB combination) with different trip coordination and breaking capacity — verify selectivity and fault-current ratings before substituting. The 5SU1 is a true RCBO with integrated overcurrent and residual-current protection in one unit.

What compliance documentation does Siemens provide for 5SU1653-1KL16?

The device is designed to EN 60898 (breaking capacity 4.5 kA per that standard) and carries the CE mark. It is halogen-free and silicon-free. For specific declarations (RoHS, REACH, UL listing), request the manufacturer's current compliance certificate — the evidence here confirms the EN 60898 rating and material declarations.

MPN
5SU1653-1KL16