Skip to main content
Log in
Siemens 5SU1323-1BB32 — Residual Current Breakers (RCCB/RCBO)

Siemens 5SU1323-1BB32 SENTRON RCBO, 32 A, 30 mA, Type AC, C-

MPN5SU1323-1BB32

Siemens SENTRON 5SU1 series RCBO, 2-pole, 32 A rated, 30 mA Type AC residual current, C-tripping characteristic, 4.5 kA (EN 60898) / 15 kA (IEC 60947-2), 400 V AC, 50 Hz.

Siemens 5SU1323-1BB32 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

5SU1323-1BB32 — Electrical Ratings
ParameterValue
Number of poles2
Overvoltage categoryIII
5SU1323-1BB32 — Identification
ParameterValue
Product designationRCBO
Product design / constructionInstantaneous
5SU1323-1BB32 — Mechanical
ParameterValue
Mounting positionany
Installation depth70 mm
5SU1323-1BB32 — Environmental
ParameterValue
IP degree of protectionIP20, if the distribution board is installed, with connected conductors
5SU1323-1BB32 — Electrical
ParameterValue
Tripping Characteristic ClassC

Product details

This RCBO carries two breaking-capacity ratings: 4.5 kA per EN 60898 (the residential standard) and 15 kA per IEC 60947-2 (the industrial standard). The 4.5 kA figure governs its use in domestic consumer units; the 15 kA rating means it can be installed downstream of a larger upstream device in an industrial sub-distribution board where fault currents are higher. The 4-module width occupies four 18 mm DIN spaces — typical for a 2-pole RCBO with neutral switching.

Installation and wiring constraints

Terminals accept solid or stranded conductors from 1.5 mm² up to 25 mm², with a tightening torque of 2.5 to 3 N·m. The supply can enter from either top or bottom, and the mounting position is unrestricted. IP20 applies only when the distribution board is installed and conductors are connected — the device itself is not sealed against dust ingress until enclosed.

Frequently asked questions

Where can I buy 5SU1323-1BB32 and what is the lead time?

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

What is the closest functional second-source for 5SU1323-1BB32?

The 5SL4363-7 is a 2-pole RCBO from the same SENTRON family, but it carries a different tripping characteristic and breaking capacity. The 5SU1323-1BB32 is Type AC, 30 mA, C-curve, 32 A, with 4.5 kA (EN 60898) / 15 kA (IEC 60947-2). Verify the specific ratings before substituting — the 5SL series may differ in residual-current type or short-circuit capacity.

What is the solid and stranded conductor range for 5SU1323-1BB32?

Both solid and stranded conductors are accepted from 1.5 mm² up to 25 mm².

Will 5SU1323-1BB32 drop into a panel specified around 5SL4363-7 without rewiring?

Both are 2-pole, 4-module-width RCBOs that mount on the same DIN rail, so the mechanical fit is identical. However, the electrical ratings differ — the 5SU1323-1BB32 is 32 A, Type AC, 30 mA, C-curve, with 4.5 kA / 15 kA breaking capacity. The 5SL4363-7 may have different current or fault-current ratings. Confirm the circuit's required parameters before swapping.

What compliance documentation does Siemens provide for 5SU1323-1BB32?

The device is designed to EN 60898 and IEC 60947-2. It carries the SENTRON brand and is halogen-free and silicon-free. For specific RoHS, REACH, or UL documentation, refer to the manufacturer's declaration or request it with your RFQ.

MPN
5SU1323-1BB32