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Siemens 5SY7310-8CC — 3-Pole MCB (DIN Rail)

Siemens 5SY7310-8CC SENTRON MCB, 3P D 10A, 400V 25kA

MPN5SY7310-8CC

Siemens SENTRON 5SY7310-8CC, 3-pole D-curve miniature circuit breaker, 10 A rated, 400 V AC, 25 kA IEC 60947-2, 5 kA UL 1077, 3 MW wide.

Siemens 5SY7310-8CC datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SY7310-8CC — Identification
ParameterValue
Brand nameSENTRON
Number of poles3
Pole configuration3P
Suitability for operationMechanical engineering / industry
5SY7310-8CC — Protection
ParameterValue
Tripping characteristic (curve)D
Breaking capacity per IEC 60947-225 kA
Overvoltage categoryIII
IP protection classIP20, with connected conductors
Pollution degree3
5SY7310-8CC — 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)0.9 W
Mechanical service life (operating cycles, typ.)10 000
Neutral conductor switchingNo
Rated voltage (AC, single-phase)440 V
5SY7310-8CC — Mechanical
ParameterValue
Modular width units3
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
5SY7310-8CC — 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

What this MCB is for

Breaking capacity — the number that decides coordination

Under UL 1077 and CSA C22.2 No. 235 the same part carries 5 kA at 400 V. The gap matters for panel coordination: if your upstream breaker or transformer can deliver more than 5 kA at the fault point, you need to verify the IEC rating applies to your installation standard. Same part, different passport — the hardware is identical; the rating depends on which certification regime the inspector follows.

Integration notes

Snap-on mounting to DIN rail EN 60715, any position. Depth behind the panel is 70 mm installation depth; overall depth 76 mm. Ambient temperature range -40 °C to +75 °C, with derating above 55 °C per the humidity/temperature curve (max 95% RH at 55 °C, tapering to 35% at 75 °C).

Frequently asked questions

How do I get current pricing and availability for 5SY7310-8CC?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial offer.

Will 5SY7310-8CC drop into a panel specified around 5SY4101-7CV without rewiring?

Both are 3-pole, 3-MW (54 mm wide) DIN-rail MCBs with combined terminals, so the mechanical fit and wiring are identical. The difference is certification: 5SY4101-7CV carries UL 489 (branch-circuit rating), while 5SY7310-8CC carries UL 1077 (supplementary protection). If the panel design requires UL 489 for branch-circuit duty, the 5SY4101-7CV is the correct drop-in; if supplementary protection is acceptable, the 5SY7310-8CC fits without rewiring.

What compliance documentation does Siemens provide for 5SY7310-8CC?

The part is CE marked per IEC 60947-2, UL recognized under UL 1077, and CSA certified under C22.2 No. 235. RoHS and REACH declarations are standard for current-production SENTRON products. The manufacturer provides a declaration of conformity and test certificates on request.

MPN
5SY7310-8CC