Siemens 5SY4102-7 Miniature Circuit Breaker 2A, 1-Pole, C-Curve, 10kA, 230/400V Original Brand New

Overview

The Siemens 5SY4102-7 Miniature Circuit Breaker (MCB) is a precision-engineered electrical protection device designed to safeguard electrical circuits against overloads and short circuits. Manufactured by Siemens, a globally trusted name in electrical and automation technology, this MCB delivers consistent performance, durability, and compliance with modern electrical standards.

With a rated current of 2A, 1-pole configuration, and a C-curve tripping characteristic, the Siemens 5SY4102-7 is ideal for applications requiring moderate inrush current tolerance. The 10kA short-circuit breaking capacity ensures a high level of safety, even in demanding environments where fault currents may be significant.

Its compact design with a 70 mm depth (D = 70 mm) allows easy integration into standard DIN rail distribution boards, making installation and maintenance straightforward. The breaker operates reliably at 230/400 V, ensuring compatibility with a wide range of low-voltage electrical systems.

Benefit

• Reliable Circuit Protection: Effectively protects electrical circuits from overload and short-circuit conditions.

• High Breaking Capacity: 10kA rating provides enhanced safety and system reliability.

• C-Curve Tripping Characteristic: Suitable for circuits with moderate inrush currents, reducing nuisance tripping.

• Compact and Space-Saving: Designed to fit standard DIN rail enclosures with minimal space requirements.

• Trusted Siemens Quality: Built to meet stringent quality and safety standards for long-term operation.

• Low Maintenance: Durable construction ensures stable performance over extended service life.

Function

The Siemens 5SY4102-7 Miniature Circuit Breaker performs several critical functions within an electrical installation:

1. Overload Protection: Automatically disconnects the circuit when current exceeds safe operating levels.

2. Short-Circuit Protection: Interrupts fault currents rapidly to prevent damage to equipment and wiring.

3. Manual Switching: Allows circuits to be manually switched on or off for maintenance or isolation.

4. Fault Indication: Clear toggle position provides quick visual status of circuit condition.

Application

The versatility of the Siemens 5SY4102-7 makes it a go-to choice across various sectors:

1. Industrial Automation: Protecting PLC inputs, sensors, and low-power control circuits.

2. Commercial Buildings: Ideal for HVAC control systems and lighting circuits with electronic ballasts.

3. Infrastructure: Used in telecommunications equipment and power supply protection where 2A precision is required.

4. Residential: High-end protection for specialized home automation hardware and sensitive electronics.

Its 2A rating makes it particularly suitable for sensitive or low-current circuits that require precise and reliable protection.

Technical Specification

• Product Number: 5SY4102-7

• Manufacturer: Siemens

• Rated Voltage: 230/400 V

• Rated Current: 2 A

• Number of Poles: 1-Pole

• Tripping Characteristic: C Curve

• Breaking Capacity: 10 kA

• Depth: 70 mm

• Mounting: DIN Rail

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