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Siemens 5SY6310-8 — 3-Pole MCB (DIN Rail)

Siemens SENTRON 5SY6310-8 MCB, 3P D 10A 6kA

MPN5SY6310-8

Siemens SENTRON 5SY6 series, 5SY6310-8, 3-pole miniature circuit breaker, D tripping characteristic, 10 A rated current, 6 kA (EN 60898) / 15 kA (IEC 60947-2) breaking capacity, 400 V AC.

$57.61Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

5SY6310-8 — Identification
ParameterValue
Design / model code5SY6
Brand nameSENTRON
Number of poles3
Suitability for operationMechanical engineering / industry
5SY6310-8 — Protection
ParameterValue
Tripping characteristic (curve)D
Breaking capacity per EN 608986 kA
Breaking capacity per IEC 60947-215 kA
Overvoltage categoryIII
IP protection classIP20, with connected conductors
Pollution degree3
5SY6310-8 — Electrical
ParameterValue
Rated current (AC)400 V
Rated voltage (AC, multi-phase)440 V
Rated frequency50/60 Hz
5SY6310-8 — Mechanical
ParameterValue
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
5SY6310-8 — Environmental
ParameterValue
Influence of surrounding temperaturemax. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C

Product details

The Siemens SENTRON 5SY6310-8 is a 3-pole miniature circuit breaker with a D tripping characteristic, rated at 10 A and 400 V AC. It breaks fault currents up to 6 kA per EN 60898 and 15 kA per IEC 60947-2, making it suited for industrial panel protection where high inrush currents from motor or transformer loads are expected.

Installation depth is 70 mm; total depth with terminals is 76 mm.

Rated for ambient temperatures from -40 °C to 75 °C, with humidity influence derated per the spec: max 95% RH at 55 °C, 55% at 70 °C, 35% at 75 °C. The breaker is sealable for tamper-evident installations. DC rating is 72 V max with 15 kA breaking capacity per IEC 60947-2; UL 1077 / CSA C22.2 No. 235 rating is 5 kA at AC.

Frequently asked questions

Where can I buy 5SY6310-8 and how do I get a price?

This part is sourced and quoted to order through our independent distribution channel. Submit an RFQ for current availability and pricing — confirmed at quote time.

When sourcing 5SY6310-8, what's the closest functional second-source?

The 5SY7140-8CC is a 4-pole variant in the same SENTRON family. The 5SY6310-8 is 3-pole; the 5SY7140-8CC adds a switched neutral pole. It will not drop in without rewiring the neutral bar.

What compliance documentation does this brand provide for 5SY6310-8?

The part carries ratings per EN 60898, IEC 60947-2, UL 1077, and CSA C22.2 No. 235. It is halogen-free and silicon-free. Specific RoHS/REACH declarations are available with the manufacturer's documentation pack.

MPN
5SY6310-8