5SY4603-8 The Siemens 5SY4603-8 is a 4-pole miniature circuit breaker designed for AC applications. It features a D-tripping characteristic and a 3A operational current rating.
Mfr Part #:

5SY4603-8

Mfr Name: Siemens
Siemens
The Siemens 5SY4603-8 is a 4-pole miniature circuit breaker designed for AC applications. It features a D-tripping characteristic and a 3A operational current rating.
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$ Price Range: $0.99

5SY4603-8 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Actuator Type
Approval Agency
Current Rating
Current Rating (Amps)
Depth
Halogen Free
Height
Illumination
Mounting Type
Number of Poles
Voltage
Voltage Rating
Width

5SY4603-8 Description

Short technical summary and product information.

The Siemens 5SY4603-8 is a miniature circuit breaker designed for robust protection in industrial and mechanical engineering applications. This 4-pole device, featuring a 3P+N configuration, operates on AC voltage with a rated supply voltage of 400V and an insulation voltage of 440V.

 

Key electrical specifications include a 3A operational current rating at 35°C, a D-tripping characteristic, and a switching capacity of 10kA according to EN 60898. It also offers a breaking capacity of 15kA at DC and 35kA at AC according to IEC 60947-2. The breaker is suitable for conductor cross-sections ranging from 0.75 mm² to 35 mm² for solid and stranded wires.

 

Mechanically, the 5SY4603-8 is designed for DIN rail mounting with a quick assembly system. It has dimensions of 90mm height, 72mm width, and 76mm depth, with an installation depth of 70mm. The device is rated IP20 with connected conductors and supports features like neutral conductor switching and sealability.

 

Environmental considerations include a degree of pollution of 3 and compliance with standards such as IEC/EN 60898-1 and IEC/EN 60947-2. The product is also noted as halogen-free and silicon-free.

5SY4603-8 Quick Information

Product Type: Miniature Circuit Breaker
Canonical Name: Siemens 5SY4603-8 Miniature Circuit Breaker
Subcategory: Miniature Circuit Breaker

5SY4603-8 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

5SY4603-8 Estimated Pricing

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1+ $0.99 $0.99

Estimated market price range - modelled values for guidance only, not live distributor offers.

5SY4603-8 Features

  • Four-pole miniature circuit breaker.
  • Rated for 400V AC supply voltage.
  • 3A operational current rating.
  • D-curve tripping characteristic.
  • 10kA switching capacity.

5SY4603-8 Applications

  • Provides overcurrent protection.
  • Suitable for industrial applications.
  • Designed for AC power systems.
  • Used with inductive loads.
  • Ensures circuit safety.

5SY4603-8 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the Siemens 5SY4603-8?

The operational current rating for the Siemens 5SY4603-8 is 3A at 35°C and at AC.

What is the voltage rating of this circuit breaker?

The rated supply voltage for the Siemens 5SY4603-8 is 400V AC, with an insulation voltage of 440V.

How many poles does the 5SY4603-8 have?

The Siemens 5SY4603-8 is a 4-pole circuit breaker with a 3P+N pole design.

What is the switching capacity of the 5SY4603-8?

The switching capacity is 10kA according to EN 60898, 15kA at DC according to IEC 60947-2, and 35kA at AC according to IEC 60947-2.

What is the tripping characteristic of this circuit breaker?

The tripping characteristic class is D.

How is the Siemens 5SY4603-8 mounted?

The Siemens 5SY4603-8 is designed for DIN rail mounting using a quick assembly system.

Is the Siemens 5SY4603-8 halogen-free?

Yes, the Siemens 5SY4603-8 is halogen-free.

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