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Siemens 5SM3648-6 — Residual Current Breakers (RCCB/RCBO)

Siemens 5SM3648-6 SENTRON RCCB, 4P, 100 A, 300 mA, 400 V AC

MPN5SM3648-6

Siemens SENTRON 5SM3648-6, 4-pole Type A instantaneous RCCB, In 100 A, 300 mA sensitivity, Un AC 400 V, 10 kA SCCR, DIN rail mount.

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

5SM3648-6 — Electrical Ratings
ParameterValue
Number of poles4
Overvoltage categoryIII
5SM3648-6 — Identification
ParameterValue
Product designationRCCB
Product design / constructionInstantaneous
5SM3648-6 — Mechanical
ParameterValue
Mounting positionany
Width in modular units4
Maximum45 °C
Minimum-25 °C
Width72 mm
Height90 mm
Depth77 mm
Installation depth70 mm
5SM3648-6 — Environmental
ParameterValue
IP degree of protectionIP20, if the distribution board is installed, with connected conductors

Product details

The Siemens SENTRON 5SM3648-6 is a 4-pole Type A instantaneous residual current circuit breaker (RCCB) rated at 100 A with 300 mA sensitivity, designed for 400 V AC, 50 Hz systems. The Type A detection covers sinusoidal AC and pulsating DC residual currents, which is the standard requirement for most commercial and industrial final circuits with electronic loads.

Snap-on DIN rail (REG) mounting, any position. Spring-cage terminals accept top or bottom feed — no polarity concern on the line/load side for an RCCB.

Lifecycle stage is current.

Frequently asked questions

Will the 5SM3648-6 drop into a panel specified for the 5SL4363-7?

No. The 5SM3648-6 is a 4-pole RCCB (72 mm wide, 4 MW), while the 5SL4363-7 is a 3-pole MCB (54 mm wide, 3 MW). The width difference and different function (residual current vs. overcurrent protection) mean they are not drop-in replacements without rewiring and panel space reallocation.

MPN
5SM3648-6