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Siemens 5SY6150-8 — 1-Pole MCB (DIN Rail)

Siemens SENTRON 5SY6150-8 MCB, 1P D 50 A, 6/10 kA

MPN5SY6150-8

Siemens SENTRON 5SY6 series, miniature circuit breaker, 1-pole, D tripping characteristic, 50 A rated current, 6 kA per EN 60898 / 10 kA per IEC 60947-2, 400 V AC, 72 V DC max, 18 mm width.

$44.34Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

5SY6150-8 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Number of poles1
Application suitabilityMechanical engineering / industry
5SY6150-8 — Electrical & Protection
ParameterValue
Tripping characteristic classD
Rated value (EN 60898)6 kA
Overvoltage categoryIII
5SY6150-8 — Mounting & Connection
ParameterValue
Mounting positionany
Combined terminal, topYes
Combined terminal, bottomYes
Width18 mm
Height90 mm
Depth76 mm
Installation depth70 mm
SealableYes
5SY6150-8 — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Halogen-freeYes
Silicone-freeYes

Product details

Breaking capacity is 6 kA per EN 60898 and 10 kA per IEC 60947-2, so it clears faults up to 10 kA in industrial panels without upstream coordination issues.

IP20 with connected conductors; sealable for lockout/tagout.

The D-curve is specified for loads with high inrush — motor starters, small transformers, discharge lighting. For a 50 A D-curve MCB, the magnetic trip threshold is typically 10-20x In (500-1000 A instantaneous), so it passes start-up spikes that would trip a C-curve at 5-10x In. Suitability is marked for mechanical engineering and industry per the manufacturer.

Frequently asked questions

What is the breaking capacity of 5SY6150-8?

6 kA per EN 60898, 10 kA per IEC 60947-2 at 400 V AC. At DC, 15 kA per IEC 60947-2 at 72 V. UL 1077/CSA C22.2 No.235 rating is 5 kA.

Where can I buy 5SY6150-8 and get a price?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for volume or single-piece needs.

Will 5SY6150-8 fit in a panel designed for 5SY3132-6?

Both are 1-pole, 18 mm width units on the same DIN-rail footprint. The 5SY6150-8 is a 50 A D-curve; the 5SY3132-6 is a lower-rated B-curve. Mechanical fit is identical — same mounting, same terminal range (0.75-35 mm²). No rewiring needed for the swap, but verify the load's inrush characteristic matches the D-curve.

What compliance documentation does Siemens provide for 5SY6150-8?

The MCB carries EN 60898 and IEC 60947-2 ratings, UL 1077 and CSA C22.2 No.235 certifications. Halogen-free and silicon-free construction. Standard Siemens declaration of conformity covers CE, UKCA, and EAC. RoHS and REACH compliance documentation is available on request.

MPN
5SY6150-8