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Siemens 5SY7414-8 — Miniature Circuit Breakers (MCB)

Siemens 5SY7414-8 SENTRON MCB, 4P, D-curve, 0.29 A, 15/50 kA

MPN5SY7414-8
Active

Siemens SENTRON 5SY7414-8, 4-pole miniature circuit breaker, D tripping characteristic, 0.29 A rated current at 400 V AC, 15 kA (EN 60898) / 50 kA (IEC 60947-2) breaking capacity.

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

5SY7414-8 — Ratings
ParameterValue
Overvoltage categoryIII
5SY7414-8 — Mechanical
ParameterValue
Width72 mm
Height90 mm
Depth76 mm

Product details

Rated 0.29 A at 400 V AC (50/60 Hz), it carries a breaking capacity of 15 kA per EN 60898 and 50 kA per IEC 60947-2, giving you headroom for high-fault installations.

Ratings that matter for fit

The 0.29 A rating at 40 °C is the continuous current the breaker can carry without tripping; at higher ambient temperatures the value derates stepwise to 0.25 A at 60 °C (–).

The 5SY7414-8 occupies 4 modular width units (72 mm wide) on a DIN rail, with a depth of 76 mm and an installation depth of 70 mm. It mounts in any position and accepts conductors via combined top and bottom terminals. The sealable design allows lockout/tagout without removing the breaker.

Frequently asked questions

What is the breaking capacity of 5SY7414-8?

15 kA per EN 60898 and 50 kA per IEC 60947-2. The IEC 60947-2 figure is the one most industrial specifications reference for coordination studies.

What does the D tripping characteristic mean?

The D curve trips at 10 to 20 times the rated current (In), so the 0.29 A breaker will hold through inrush up to roughly 2.9–5.8 A before opening. That suits loads with high starting currents — motors, transformers, or discharge lamps — where a B or C curve would trip on startup.

Where can I buy 5SY7414-8 and how is it quoted?

Sourced to order through our independent distribution channel. Submit an RFQ; availability and current pricing are confirmed at quote time.

MPN
5SY7414-8