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Siemens 5SY7205-8 — 2-Pole MCB (DIN Rail)

Siemens 5SY7205-8 SENTRON MCB, 2P D 0.5A, 15/50 kA

MPN5SY7205-8
Active

Siemens SENTRON 5SY7205-8, 2-pole miniature circuit breaker, D tripping characteristic, 0.5 A rated current, 15 kA (EN 60898) / 50 kA (IEC 60947-2) breaking capacity, 2 MW units.

Siemens 5SY7205-8 datasheet (PDF)
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

5SY7205-8 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
Application environmentMechanical engineering / industry
5SY7205-8 — Electrical
ParameterValue
Number of poles2
5SY7205-8 — Protection
ParameterValue
Tripping characteristic classD
Overvoltage categoryIII
5SY7205-8 — Mechanical
ParameterValue
Modular width units2
Width36 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Mounting positionany
Min.-40 °C
Max.75 °C
Protection degree (IP)IP20, with connected conductors
5SY7205-8 — Environmental
ParameterValue
Pollution degree3

Product details

Siemens 5SY7205-8 SENTRON MCB — 2-pole D-curve at 0.5 A

It is designed for AC circuits at 400 V and 50/60 Hz, with a breaking capacity of 15 kA per EN 60898 and 50 kA per IEC 60947-2.

The 5SY7205-8 carries a 50 kA rated short-circuit capacity under IEC 60947-2, which is the standard for industrial installations — not just the 15 kA under EN 60898 for household-type distribution. For DC circuits, it is rated 15 kA per IEC 60947-2, covering battery-backed control buses.

The quick assembly system allows snap-on mounting in any position. IP20 protection with connected conductors — suitable for enclosed panel environments.

The sealable design supports anti-tamper requirements in metering or safety-critical circuits. Vibration resistance tested to IEC 60068-2-6: ±1 mm at 5 to 25 Hz and 50 m/s² at 25 to 150 Hz. Suitable for mechanical engineering and general industry applications per the manufacturer's designation.

Frequently asked questions

Where can I buy 5SY7205-8 and how do I get a price?

The 5SY7205-8 is available to order against an RFQ through independent distribution. Submit a request for quote to confirm current availability and pricing.

What is the breaking capacity of 5SY7205-8 under IEC 60947-2?

The 5SY7205-8 is rated at 50 kA breaking capacity per IEC 60947-2 at 400 V AC, and 15 kA per EN 60898. For DC circuits, it is rated 15 kA per IEC 60947-2.

What does the D tripping characteristic mean for this breaker?

The D-curve allows higher inrush current before tripping — typically 10 to 20 times the rated current. This suits loads with high starting surges like motors, transformers, or discharge lighting, where a B or C curve would nuisance-trip.

MPN
5SY7205-8