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Siemens 5SV3344-6BA — Residual Current Breakers (RCCB/RCBO)

Siemens SENTRON 5SV3344-6BA RCCB, 4P, 40 A, 400 V, Type A

MPN5SV3344-6BA

Siemens SENTRON 5SV3 series, RCCB, 4-pole, 40 A at 400 V AC, Type A, instantaneous, DIN rail mount, IP20.

Siemens 5SV3344-6BA datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SV3344-6BA — Electrical Ratings
ParameterValue
Number of poles4
Overvoltage categoryIII
5SV3344-6BA — Identification
ParameterValue
Product designationRCCB
Product design / constructionInstantaneous
5SV3344-6BA — Mechanical
ParameterValue
Mounting positionany
Maximum45 °C
Minimum-25 °C
Width72 mm
Height90 mm
Depth70 mm
Installation depth70 mm
5SV3344-6BA — Environmental
ParameterValue
IP degree of protectionIP20, if the distribution board is installed, with connected conductors

Product details

The Siemens SENTRON 5SV3344-6BA is a 4-pole residual current circuit breaker (RCCB) from the 5SV3 series, rated 40 A at 400 V AC. It's a Type A instantaneous device — catches sinusoidal AC faults plus pulsating DC fault currents up to 1 kHz, which covers most single-phase rectified loads like switched-mode supplies and variable-speed drives downstream. Mounts on DIN rail, takes 4 width units (72 mm).

Derating and panel fit

Above that, the thermal curve steps down: 38.1 A at 45 °C, 35.59 A at 50 °C, 32.29 A at 55 °C, 28.19 A at 60 °C, 23.3 A at 65 °C, and 17.62 A at 70 °C. The 70 mm depth matches standard distribution board cutouts; mounting position is any orientation. IP20 with conductors connected, so it's for enclosed panels only, not washdown zones.

Frequently asked questions

What is the closest functional second-source for 5SV3344-6BA?

The 5SU9354-7KK16 is a functional peer — same 4-pole, 40 A, Type A RCCB class — but it's a different series (5SU9 vs 5SV3). The 5SV3 series is the current SENTRON generation; the 5SU9 is an earlier design. Both mount on DIN rail and share the same 4-module width, so a panel laid out for one should accept the other without rewiring, but verify the specific terminal layout and depth against your enclosure.

Where can I buy 5SV3344-6BA and how is it quoted?

This part is sourced to order through independent distribution. Submit an RFQ for current pricing and availability — both are confirmed at quote time. No stock or price figures are published here.

What compliance documentation does Siemens provide for 5SV3344-6BA?

The product carries the SENTRON brand and is designed to IEC/EN standards for RCCBs (Type A, instantaneous). Standard documentation includes a CE declaration of conformity and the manufacturer's datasheet. Specific RoHS and REACH status is available on request from the supplier.

MPN
5SV3344-6BA