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Siemens 5SP3363-3 — 3-Pole MCB (DIN Rail)

Siemens 5SP3363-3 SENTRON MCB, 63A 3P E-Char 25kA

MPN5SP3363-3
Active

Siemens SENTRON, miniature circuit breaker, 5SP3363-3, 3-pole, 63 A, E characteristic, 25 kA, 400 V AC, DIN rail.

Siemens 5SP3363-3 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SP3363-3 — Identification
ParameterValue
Design / model code5SP3
Brand nameSENTRON
Number of poles3
Suitability for operationResidential buildings/infrastructure
5SP3363-3 — Protection
ParameterValue
Tripping characteristic (curve)E
Breaking capacity per EN 6089825 kA
Overvoltage categoryIV
IP protection classIP40, with connected conductors
5SP3363-3 — Electrical
ParameterValue
Rated frequency25 kA
5SP3363-3 — Mechanical
ParameterValue
Height128 mm
Depth76.3 mm
Terminal tightening torque, max.440 V
Terminal tightening torque, min.110 V
SealableYes

Product details

The Siemens 5SP3363-3 is a SENTRON main miniature circuit breaker (MCB) in the 5SP3 design series, rated 63 A at 400 V AC, 50 Hz. The E tripping characteristic is designed for selective coordination in distribution boards.

The 76.3 mm depth and 128 mm height fit standard distribution enclosures.

Shock resistance is 30 g for at least 3 impacts with 11 ms duration; vibration resistance is 2 g per IEC 60068-2-6 over 20 frequency cycles from 5 to 150 Hz. Overvoltage category IV means it's rated for the point where the utility supply enters the building — the highest transient stress level within the low-voltage installation.

Frequently asked questions

What does the E tripping characteristic mean?

The E characteristic is designed for selective (discriminative) coordination. It allows a short-duration overcurrent — typically motor inrush or transformer magnetizing current — to pass without tripping, so that only the downstream branch MCB opens on a fault. This keeps the main feeder live for the rest of the installation.

What conductor sizes does 5SP3363-3 accept?

Solid and stranded conductors from 2.5 mm² up to 50 mm². The saddle terminals accommodate both types without adapter ferrules.

MPN
5SP3363-3