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Siemens 5SV3646-6KL — Residual Current Breakers (RCCB/RCBO)

Siemens 5SV3646-6KL RCCB, 63 A, 4-pole, Type A, 10 kA

MPN5SV3646-6KL
Active

Siemens SENTRON 5SV3646-6KL, 4-pole RCCB, 63 A, Type A, 10 kA SCCR, 230/400 V, DIN rail mount, instantaneous.

$235.43Ref. price · indicative, final on quote
Siemens 5SV3646-6KL datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SV3646-6KL — Electrical Ratings
ParameterValue
Number of poles4
Overvoltage categoryIII
5SV3646-6KL — Identification
ParameterValue
Product designationRCCB
Product design / constructionInstantaneous
5SV3646-6KL — Mechanical
ParameterValue
Mounting positionany
Maximum45 °C
Minimum-25 °C
Width72 mm
Height90 mm
Depth70 mm
Installation depth70 mm
5SV3646-6KL — Environmental
ParameterValue
IP degree of protectionIP20, if the distribution board is installed, with connected conductors

Product details

63 A, 4-pole, Type A — panel fit

The Siemens 5SV3646-6KL is a 4-pole residual current circuit breaker (RCCB) rated 63 A at 230/400 V AC, with a 10 kA short-circuit current rating.

At 65 °C it derates to 57.35 A, and at 70 °C to 48.84 A. The I²t let-through is rated 110 000 A²s, and surge current resistance is 1 kA — both figures govern coordination with upstream MCBs or fuses during fault events.

Mounts on DIN rail (REG) in any position — top or bottom feed. Depth is 70 mm, height 90 mm, width 72 mm (4 width units). IP20 with conductors connected and the distribution board installed; finger and back-of-hand safe per the protection class. Neutral is on the left (N left variant). The minimum test voltage is 100 V. Overvoltage category III, suitable for fixed-installation distribution boards.

Frequently asked questions

What is the difference between Type A and Type B RCCB?

Type A (this part) detects sinusoidal AC and pulsating DC fault currents. Type B additionally detects smooth DC fault currents up to the rated residual current — needed for drives, UPS, and PV inverter circuits where pure DC faults can occur.

Does the 5SV3646-6KL require neutral on the left?

Yes, this variant has neutral on the left (N left). Confirm the busbar and wiring layout in your distribution board matches before ordering.

MPN
5SV3646-6KL