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Siemens 5SY7150-6 — 1-Pole MCB (DIN Rail)

Siemens 5SY7150-6 SENTRON MCB, 1P, 50 A, B-Curve, 15 kA

MPN5SY7150-6
Active

Siemens SENTRON 5SY7150-6, 1-pole miniature circuit breaker, 50 A rated current, B tripping characteristic, 15 kA breaking capacity per EN 60898, 20 kA per IEC 60947-2, 18 mm width, IP20.

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

Specifications

5SY7150-6 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Number of poles1
Pole design1P
Application suitabilityMechanical engineering / industry
5SY7150-6 — Electrical & Protection
ParameterValue
Tripping characteristic classB
Rated value (EN 60898)15 kA
Energy limitation class3
Overvoltage categoryIII
5SY7150-6 — Mounting & Connection
ParameterValue
Mounting positionany
Fastening methodQuick assembly system
Combined terminal, topYes
Combined terminal, bottomYes
Width18 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Modular width units1
Torque, min.-40 °C
Torque, max.75 °C
SealableYes
5SY7150-6 — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Pollution degree3
Halogen-freeYes
Silicone-freeYes

Product details

50 A B-curve MCB for panel protection

Single-pole design (1P) fits one modular width (18 mm) on the DIN rail.

Temperature derating and installation

Rated 50 A at 35 °C ambient; derates to 46.35 A at 45 °C, 45.1 A at 50 °C, 43.75 A at 55 °C, and 42.4 A at 60 °C. Mount in any position — the quick-assembly system snaps onto the DIN rail, 70 mm installation depth. Operating range -40 to 75 °C, humidity limits per the spec (95% to 55 °C, derating above). Sealable, halogen-free, silicon-free — relevant for clean-room or coated-panel environments.

Frequently asked questions

Where can I buy the 5SY7150-6?

This part is sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time — no stock count or lead-time figure is published here.

Will the 5SY7150-6 drop into a panel specified around the 5SY7140-8CC?

Both are 1-pole SENTRON MCBs in the same 18 mm modular width, same DIN-rail footprint. The 5SY7150-6 is a 50 A B-curve; the 5SY7140-8CC is a 40 A C-curve. If the busbar and wiring are rated for 50 A, it's a direct mechanical swap — no rewiring of the DIN-rail mount or terminal layout needed.

MPN
5SY7150-6