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E-T-A 4230T120K0BU4A thermal magnetic circuit breaker

This two-pole thermal magnetic circuit breaker rated for 4 amps is designed for reliable overload and short circuit protection in industrial and electrical systems. It is suitable for 240VAC and 125VDC applications, featuring a lever actuator, screw terminals, high rupture capacity, and compliance with UL 489 standards. Ideal for protecting control panels, motor circuits, and power supplies, it provides safe, dependable operation with robust insulation, vibration resistance, and mounting on DIN rails. Its compact design ensures easy integration into various electrical installations, ensuring reliable overcurrent protection.

Authorized Distributors
Source:DigiKey
Part No:4230-T120-K0BU-4A
Stock:0
Inv Date:06-08-2026
Price: Unit price: $66.13
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Part No:4230-T120-K0BU-4A
Stock:1
Inv Date:06-09-2026
Price: Unit price: $66.49
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Part No:4230-T120-K0BU-4A
Stock:2
Inv Date:06-08-2026
Price: Unit price: $26.15
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Part No:4230-T120-K0BU-4A
Stock:0
Inv Date:06-08-2026
Price: Unit price: $47.79
Buy/RFQ:
Part No:4230-T120-K0BU-4A
Stock:0
Inv Date:06-08-2026
Price: Unit price: $47.79
Buy/RFQ:

E-T-A 4230T120K0BU4A thermal magnetic circuit breaker Specifications:

  • Number of Poles: 2
  • Rated Current: 4A
  • Voltage Rating: 240VAC / 125VDC
  • Rupture Capacity: 10,000A (UL 489, IEC/EN 60947-2)
  • Operation: Thermal-magnetic with snap action
  • Mounting: DIN rail
  • Terminals: Screw terminals, vertical connection possible
  • Wire Cross Section: 6-25 mm² (solid/stranded), 4-16 mm² (finely stranded with wire end ferrule)
  • Tightening Torque: 1.0 Nm to 3.5 Nm depending on wire size
  • Vibration Resistance: IEC 60068-2-6 compliant
  • Shock Resistance: IEC 60068-2-27 compliant
  • Humidity Resistance: IEC 60068-2-78 compliant
  • Protection Degree: IP20
  • Temperature Range: -35°C to +70°C
  • Mass: Approx. 116g per pole

Buy the ABB 4230T120K0BU4A – Reliable Circuit Breaker for Industrial Applications

Get the ABB 4230T120K0BU4A two-pole thermal magnetic circuit breaker online now and enjoy reliable overload protection for industrial systems. This breaker features a lever actuator, screw terminals, and UL 489 compliance, making installation straightforward and safe. Perfect for protecting various electrical components, it ensures high rupture capacity with a compact design suitable for DIN rail mounting. Enhance your electrical safety and system reliability by ordering this high-performance circuit breaker today. Fast, secure online purchase available for quick deployment.

Order your ABB 4230T120K0BU4A series two-pole circuit breaker today and ensure dependable overload and short circuit protection for your industrial projects.

Frequently Asked Questions

Where can I buy E-T-A 4230T120K0BU4A?

You can click on the BUY or RFQ button to purchase 4230T120K0BU4A from an authorized E-T-A distributor.

How do I troubleshoot issues or seek technical support for part 4230T120K0BU4A?

You can download the 4230T120K0BU4A datasheet or visit the E-T-A website for support.

Who is the manufacturer of 4230T120K0BU4A?

E-T-A

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