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Siemens 5SY4208-8 Miniature Circuit Breaker β€” 2-Pole, D-Curve, 8A

Siemens 5SY4208-8 2-Pole Miniature Circuit Breaker, 8A, D-Curve.

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ManufacturerSiemens
Part number5SY4208-8
Part Number 5SY4208-8
Manufacturer Siemens
Type Miniature Circuit Breaker
Poles 2
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2-Pole Configuration 400V AC Rated 10kA Short-Circuit Rating D-Curve Tripping 8A Current Rating High Inrush Current Protection

The Siemens 5SY4208-8 is a high-performance two-pole miniature circuit breaker designed for robust protection in industrial environments. It features a D-curve tripping characteristic, a 400V rated voltage, and a 10kA short-circuit breaking capacity. This breaker is rated for 8A and has a standard 70mm width (D=70 mm), suitable for demanding applications.

This circuit breaker is the preferred choice for circuits with high inrush currents, such as those powering motors, transformers, or heavy machinery. The D-curve ensures it can handle these temporary surges without tripping, providing reliable operation.

Stanlo Automation, a veteran-owned surplus distributor, offers the Siemens 5SY4208-8 to ensure your industrial operations are supported by dependable components. We are committed to providing quality automation parts, helping you maintain uptime and efficiency with parts you can trust.

Part Number5SY4208-8
ManufacturerSiemens
TypeMiniature Circuit Breaker
Poles2
Voltage400V
Current Rating8A
Tripping CurveD
Breaking Capacity10kA
Width70mm
Industrial Motor Control
Transformer Protection
Heavy Machinery
High Inrush Load Circuits
Power Systems
Industrial Automation
Siemens 5SY Series Accessories Standard DIN Rail Mounting Systems
Siemens 5SY4208-8 MCB Siemens 2 pole D curve 8A breaker Siemens 400V 10kA breaker
This component is part of the Siemens 5SY series and can serve as a direct replacement for other 5SY4 breakers with similar specifications. Compatible with Siemens 5SY series accessories.
Expert tip
The D-curve provides the necessary time delay to allow for high starting currents of motors and other inductive loads without tripping the breaker prematurely.
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Why would an industrial application choose the Siemens 5SY4208-8 miniature circuit breaker with a D-curve over other types?
The Siemens 5SY4208-8's D-curve is designed to handle high inrush currents common in industrial settings, such as motor startups or transformer energization. This characteristic prevents nuisance tripping, ensuring reliable operation of heavy-duty equipment.