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E-T-A 4230T120K0BU6A Thermal Magnetic Circuit Breaker

This compact 2-pole thermal magnetic circuit breaker rated at 6A is designed for reliable protection in industrial and residential applications. It features a lever actuation for quick manual switching, screw terminals for secure wiring, and dual compatibility with AC and DC systems, supporting voltages up to 240VAC and 125VDC. Compliant with UL 489 standards, it ensures high rupture capacity, durable mechanical and electrical endurance, making it suitable for protecting cables, motors, transformers, and electronic equipment. Easy to install on DIN rails, with a robust build for long-lasting safety and performance.

Authorized Distributors
Source:DigiKey
Part No:4230-T120-K0BU-6A
Stock:0
Inv Date:06-08-2026
Price: Unit price: $66.13
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Part No:4230-T120-K0BU-6A
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Inv Date:06-09-2026
Price: Unit price: $66.49
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Part No:4230-T120-K0BU-6A
Stock:0
Inv Date:06-08-2026
Price: Unit price: $67.63
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Part No:4230-T120-K0BU-6A
Stock:0
Inv Date:06-08-2026
Price: Unit price: $47.79
Buy/RFQ:
Part No:4230-T120-K0BU-6A
Stock:0
Inv Date:06-08-2026
Price: Unit price: $47.79
Buy/RFQ:

E-T-A 4230T120K0BU6A Thermal Magnetic Circuit Breaker Specifications:

  • Number of Poles: 2
  • Rated Current: 6A
  • Voltage Ratings: AC 240 V, DC 125 V
  • Characteristic Curve: 705 +0.8
  • Mechanical Endurance: 20,000 cycles
  • Electrical Endurance: 6,000 cycles
  • Rupture Capacity: IEC 60947-2 10,000 A, UL 489 10,000 A, UL 1077
  • Insulation Coordination: 6 KV reinforced insulation
  • Connections: Screw terminals, vertical connection compatible
  • Mounting: DIN rail mounting
  • Mass: Approx. 116 g
  • Ambient Temperature: -35°C to +70°C
  • Certifications: IEC/EN 60947-2, UL 1077, UL 489
  • Terminals: Screw terminals, tightening torque 2.Nm max.
  • Vibration & Shock Resistance: IEC 60068-2-6, IEC 60068-2-27
  • Corrosion & Humidity Tests: IEC 60068-2-11, IEC 60068-2-78
  • Busbars Compatibility: For IEC applications, can be cut to length, max current 80A
  • Protection Degree: IP20

Buy the Steven Engineering 4230T120K0BU6A – Reliable 2-Pole Circuit Breaker for Industrial Applications

Enhance your electrical safety with the Steven Engineering thermal magnetic circuit breaker. Designed with reliable trip mechanisms, screw terminals, and DIN rail mounting, it offers optimal protection for industrial and residential systems. Rated at 6A for both AC and DC, it covers voltages up to 240VAC and 125VDC, ensuring compatibility across a wide range of applications such as motors, transformers, and electronic devices. Easy to install, durable, and compliant with UL standards, it’s the ideal choice for safeguarding your equipment.

Get Steven Engineering 4230T120K0BU6A today—built for precision and long-lasting durability in industrial electrical systems.

Frequently Asked Questions

Where can I buy E-T-A 4230T120K0BU6A?

You can click on the BUY or RFQ button to purchase 4230T120K0BU6A from an authorized E-T-A distributor.

How do I troubleshoot issues or seek technical support for part 4230T120K0BU6A?

You can download the 4230T120K0BU6A datasheet or visit the E-T-A website for support.

Who is the manufacturer of 4230T120K0BU6A?

E-T-A

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