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Siemens 5SU1344-1RC63 — Residual Current Breakers (RCCB/RCBO)

Siemens 5SU1344-1RC63 SENTRON RCBO, 63 A, 4P, C-curve, 30 mA

MPN5SU1344-1RC63

Siemens SENTRON RCBO, 63 A, 4-pole, 7 modular width units, C tripping characteristic, Type AC 30 mA residual current, 10 kA (EN 60898) / 15 kA (IEC 60947-2).

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

5SU1344-1RC63 — Electrical Ratings
ParameterValue
Number of poles4
Overvoltage categoryIII
5SU1344-1RC63 — Identification
ParameterValue
Product designationRCBO
5SU1344-1RC63 — Mechanical
ParameterValue
Mounting positionany
Width in modular units7
Maximum75 °C
Minimum-40 °C
Width126 mm
Height90 mm
Depth70 mm
Installation depth70 mm
5SU1344-1RC63 — Environmental
ParameterValue
IP degree of protectionIP20, if the distribution board is installed, with connected conductors
5SU1344-1RC63 — Electrical
ParameterValue
Tripping Characteristic ClassC

Product details

What this RCBO covers

It combines overcurrent and earth-fault protection in a single 7-module-wide unit, saving a DIN-rail position compared to separate MCB + RCCD pairs. Breaking capacity is 10 kA per EN 60898 and 15 kA per IEC 60947-2 at 415 V AC — the higher IEC figure gives coordination headroom for industrial panel designs where the prospective fault current exceeds the residential standard.

No official successor has been published — this remains the current catalog number for a 63 A, 4-pole, Type AC 30 mA RCBO in the SENTRON line.

IP20 protection applies when installed in a distribution board with connected conductors — the RCBO itself is not rated for exposed or washdown locations.

Energy limitation class 3 means the RCBO limits let-through energy during a fault, aiding downstream selectivity with standard MCBs.

Frequently asked questions

What is the breaking capacity of 5SU1344-1RC63?

10 kA per EN 60898 and 15 kA per IEC 60947-2 at 415 V AC. The higher IEC figure applies when the device is certified to the industrial standard.

How many DIN modules wide is the 5SU1344-1RC63?

7 modular width units, which is 126 mm on a standard DIN rail.

What is the residual current rating and type?

Type AC, 30 mA — suitable for sinusoidal AC earth-leakage detection in general-purpose circuits.

Where can I buy the 5SU1344-1RC63?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

Will the 5SU1344-1RC63 fit in a panel designed for a 5SL4363-7?

No — the 5SL4363-7 is a 3-pole MCB, 3 modules wide (54 mm). The 5SU1344-1RC63 is a 4-pole RCBO, 7 modules wide (126 mm). Different footprint and function; rewiring and additional DIN space would be required.

MPN
5SU1344-1RC63