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Siemens 5SY4315-6 — 3-Pole MCB (DIN Rail)

Siemens 5SY4315-6 SENTRON MCB, 3P, B-Curve, 10 kA

MPN5SY4315-6
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Siemens SENTRON 5SY4315-6 miniature circuit breaker, 3-pole, B-curve, 10 kA interrupting rating per IEC 60898-1, 35 kA per IEC 60947-2.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SY4315-6 — Identification
ParameterValue
Brand nameSENTRON
Number of poles3
Pole configuration3P
Suitability for operationMechanical engineering / industry
5SY4315-6 — Protection
ParameterValue
Tripping characteristic (curve)B
Breaking capacity per EN 6089810 kA
Breaking capacity per IEC 60947-235 kA
Overvoltage categoryIII
IP protection classIP20, with connected conductors
Energy limitation class3
Pollution degree3
5SY4315-6 — Electrical
ParameterValue
Rated voltage (AC, multi-phase)440 V
Voltage type (AC/DC)AC
Supply frequency range50/60 Hz
Power loss per pole at rated current (AC, hot)1.7 W
Mechanical service life (operating cycles, typ.)10 000
Neutral conductor switchingNo
Rated voltage (AC, single-phase)440 V
5SY4315-6 — Mechanical
ParameterValue
Modular width units2
Mounting positionany
Width54 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Terminal tightening torque, max.75 °C
Terminal tightening torque, min.-40 °C
Combined terminal, topYes
Combined terminal, bottomYes
Fastening methodQuick assembly system
SealableYes
Accepts supplementary devicesYes
5SY4315-6 — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
Influence of surrounding temperaturemax. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C
Vibration resistance (IEC 60068-2-6)±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz

Product details

It carries a 10 kA interrupting rating per IEC 60898-1 at 400 V AC, and 35 kA per IEC 60947-2 — so for most commercial and light industrial panel builds, the 10 kA figure governs the bus bracing requirement, while the 35 kA rating gives headroom if the same breaker is coordinated into a higher-fault industrial distribution board under 60947-2 rules. At 54 mm wide (2 modular width units) and 76 mm deep, it fits standard DIN-rail enclosures without needing extra gutter space behind the rail — the 70 mm installation depth means the breaker body clears most 80 mm deep enclosures.

Dual-standard certification (IEC/EN 60898-1 and IEC/EN 60947-2 plus UL 1077 / CSA C22.2 No.235) means this breaker carries the documentation needed for both European and North American panel approvals — the UL 1077 listing at 5 kA is the limiting figure for US installations, so factor that into the SCCR calculation if the panel ships stateside.

Integration Notes

Sealable design lets the panel builder lock the breaker in the ON or OFF position for lockout/tagout compliance without an external hasp.

Ratings & Environment

The humidity derating table caps relative humidity at 95 % up to 55 °C, then steps down — so in a sealed panel near a dryer or kiln, confirm the internal microclimate stays within the curve. DC rating of 15 kA at 60 V (max 72 V operating) per IEC 60947-2 makes this usable for DC distribution in solar combiner boxes or battery circuits, though the B-curve may trip faster on DC than a C-curve would — verify coordination with the downstream DC loads.

Frequently asked questions

Where can I buy 5SY4315-6?

The 5SY4315-6 is sourced and quoted to order against an RFQ through our independent distribution channel; availability and current pricing are confirmed at quote time.

What are the key interrupting ratings for 5SY4315-6?

10 kA per IEC 60898-1 at 400 V AC, 35 kA per IEC 60947-2, 15 kA at 60 V DC per IEC 60947-2, and 5 kA per UL 1077 / CSA C22.2 No.235.

Will 5SY4315-6 drop into a panel built around 5SY4140-7?

Both are 3-pole SENTRON MCBs with the same 54 mm width (2 MW) and 76 mm depth, so they share the same DIN-rail footprint and terminal layout. The difference is the trip curve — 5SY4315-6 is B-curve, 5SY4140-7 is C-curve — so the breaker will fit mechanically but the B-curve may trip faster on inrush than the C-curve the panel was originally coordinated for.

What compliance documentation does Siemens provide for 5SY4315-6?

The breaker carries IEC/EN 60898-1, IEC/EN 60947-2, UL 1077, and CSA C22.2 No.235 certifications, covering RoHS, REACH, and CE marking requirements for European and North American installations.

MPN
5SY4315-6