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Siemens 5SY4514-8 — 1-Pole MCB (DIN Rail)

Siemens 5SY4514-8 SENTRON MCB, 2-pole 0.3A D-curve, 10kA

MPN5SY4514-8
Active

Siemens SENTRON 5SY4514-8, miniature circuit breaker, 2-pole 1P+N, rated current 0.3 A, D tripping characteristic, breaking capacity 10 kA acc. to EN 60898, 35 kA acc. to IEC 60947-2.

Siemens 5SY4514-8 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SY4514-8 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Number of poles2
Application suitabilityMechanical engineering / industry
5SY4514-8 — Electrical & Protection
ParameterValue
Tripping characteristic classD
Rated value (EN 60898)10 kA
Overvoltage categoryIII
5SY4514-8 — Mounting & Connection
ParameterValue
Mounting positionany
Combined terminal, topYes
Combined terminal, bottomYes
Width36 mm
Height90 mm
Depth76 mm
Installation depth70 mm
SealableYes
5SY4514-8 — Environmental
ParameterValue
IP protection classIP20, with connected conductors
Halogen-freeYes
Silicone-freeYes

Product details

The Siemens SENTRON 5SY4514-8 is a 2-pole (1P+N) miniature circuit breaker with a rated current of 0.3 A at 230 V AC and a D tripping characteristic. At 0.3 A, this is sized for a small control transformer or a single low-power motor circuit, not a general lighting or receptacle branch. Breaking capacity is rated at 10 kA per EN 60898, 35 kA per IEC 60947-2, and 15 kA at DC per IEC 60947-2. The UL 1077 / CSA C22.2 No. 235 rating of 5 kA covers North American supplementary protection applications. Mounts on a DIN rail via the quick-assembly system, occupies 2 width units (36 mm), and accepts conductors from 0.75 to 35 mm² solid or stranded.

Deployment context

Rated for ambient temperatures from -40 to +70 °C and storage from -40 to +75 °C, with humidity limits up to 95% at 55 °C. Suitability for mechanical engineering and industry is stated on the product.

Frequently asked questions

Where can I buy 5SY4514-8 and how do I get a price?

The 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 price and lead time.

What is 5SY4514-8's listed depth (76 mm) on this component line?

The depth is 76 mm, with an installation depth of 70 mm. Width is 36 mm (2 width units), height is 90 mm.

What is 5SY4514-8's listed solid (0.75... 35 mm²) on this component line?

The terminal accepts solid conductors from 0.75 to 35 mm² and stranded conductors from 0.75 to 35 mm². Both top and bottom terminals are combined (screw and clamp) and touch-protected.

What compliance documentation does this brand provide for 5SY4514-8 (RoHS, REACH, UL, IEC)?

The breaker carries ratings per EN 60898, IEC 60947-2, UL 1077, and CSA C22.2 No. 235. It is halogen-free and silicon-free. For RoHS/REACH declarations, refer to the manufacturer's compliance documentation available on request.

MPN
5SY4514-8