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Siemens 5SU1323-1WM20 — Residual Current Breakers (RCCB/RCBO)

Siemens 5SU1323-1WM20 SENTRON RCBO, 2P C20A 30mA AC, 4.5kA

MPN5SU1323-1WM20

Siemens SENTRON 5SU1323-1WM20 RCBO, 2-pole, C20A, 30 mA AC type, 4.5 kA (EN 60898) / 15 kA (IEC 60947-2), 4 MW, IP20.

Siemens 5SU1323-1WM20 datasheet (PDF)
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

5SU1323-1WM20 — Electrical Ratings
ParameterValue
Number of poles2
Overvoltage categoryIII
5SU1323-1WM20 — Identification
ParameterValue
Product designationRCBO
Product design / constructionInstantaneous
5SU1323-1WM20 — Mechanical
ParameterValue
Mounting positionany
Maximum75 °C
Minimum-40 °C
Installation depth70 mm
5SU1323-1WM20 — Environmental
ParameterValue
IP degree of protectionIP20, if the distribution board is installed, with connected conductors
5SU1323-1WM20 — Electrical
ParameterValue
Tripping Characteristic ClassC

Product details

The Siemens 5SU1323-1WM20 is a 2-pole RCBO (residual current circuit breaker with overcurrent protection) from the SENTRON 5SU1 series, combining a 20 A overcurrent release with a 30 mA residual-current device in a single 4-module-width unit. Breaking capacity is rated at 4.5 kA per EN 60898 (the domestic-standard test) and 15 kA per IEC 60947-2 (the industrial-standard test).

Rated IP20 with the distribution board installed and conductors connected — this is a panel-interior device, not for wet-area standalone use. The supply can enter from either top or bottom, and the neutral conductor is switched internally.

Frequently asked questions

What are the key ratings of the 5SU1323-1WM20?

It is a 2-pole RCBO rated 20 A, 30 mA residual current, AC type, with C characteristic. Breaking capacity is 4.5 kA per EN 60898 and 15 kA per IEC 60947-2.

Where can I buy the 5SU1323-1WM20?

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

What is the difference between the 5SU1323-1WM20 and the 5SY4304-7CV?

The 5SY4304-7CV is a 3-pole MCB (no residual-current function) with a 400 V AC rating and a 15 kA IEC 60947-2 breaking capacity. The 5SU1323-1WM20 is a 2-pole RCBO combining overcurrent and 30 mA residual protection. They are not direct substitutes; the 5SY4304-7CV lacks the RCD element and has a different pole count.

MPN
5SU1323-1WM20