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E-T-A 4230T120K0CU4A Thermal Magnetic Circuit Breaker

This is a two-pole thermal magnetic circuit breaker rated for 4A, suitable for 240VAC or 125VDC systems. It features a lever handle and screw terminals, complying with UL 489 standards. Designed for industrial and electrical panel protection, it provides high rupture capacity, reliable switching behavior, and easy DIN rail mounting. The breaker has a mass of approximately 131 grams per pole, with a maximum tightening torque of 2.0 Nm and compatible with copper wires of cross section up to 35 mm². It ensures safety and durability in various electrical applications, meeting strict standards.

Authorized Distributors
Source:DigiKey
Part No:4230-T120-K0CU-4A
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Inv Date:06-09-2026
Price: Unit price: $66.13
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Part No:4230-T120-K0CU-4A
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Inv Date:06-10-2026
Price: Unit price: $66.49
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Part No:4230-T120-K0CU-4A
Stock:7
Inv Date:06-09-2026
Price: Unit price: $26.15
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Part No:4230-T120-K0CU-4A
Stock:0
Inv Date:06-09-2026
Price: Unit price: $47.79
Buy/RFQ:
Part No:4230-T120-K0CU-4A
Stock:0
Inv Date:06-09-2026
Price: Unit price: $47.79
Buy/RFQ:

E-T-A 4230T120K0CU4A Thermal Magnetic Circuit Breaker Specifications:

  • Type: Two-pole thermal-magnetic circuit breaker
  • Rated current: 4A
  • Voltage rating: AC 240 V, DC 125 V
  • Poles: 2-pole
  • Mounting: DIN rail
  • Terminals: Screw terminals
  • Mass: Approx. 131 g per pole
  • Operating temperature: -35°C to +70°C
  • Tightening torque: 2.0 Nm max
  • Breaking capacity: 10 kA (short circuit strength)
  • Standards: UL 489, IEC/EN 60947-2, UL 1077
  • Protection degree: IP20
  • Insulation: Reinforced insulation at 6 KV/3
  • Vibration resistance: 5 g, 10-57 Hz
  • Shock resistance: 30 g (11 ms)
  • Corrosion resistance: 96 hrs salt mist

Buy the Electrical Safety Series Thermal Magnetic Circuit Breaker: 4230T120K0CU4A

Purchase the Steven Engineering 4230T120K0CU4A circuit breaker online today and ensure electrical safety with dependable protection for your installations. Designed for industrial applications, it features a dual-pole configuration, screw terminals, and compliance with UL 489 standards. Its high rupture capacity guarantees safety in short circuit conditions, and the DIN rail mounting makes installation straightforward. With durable construction and reliable operation, this breaker enhances your system’s security and efficiency. Order now to benefit from quick shipping and expert support.

Buy Steven Engineering 4230T120K0CU4A now and experience unmatched reliability and performance with high rupture capacity and UL certification.

Frequently Asked Questions

Where can I buy E-T-A 4230T120K0CU4A?

You can click on the BUY or RFQ button to purchase 4230T120K0CU4A from an authorized E-T-A distributor.

How do I troubleshoot issues or seek technical support for part 4230T120K0CU4A?

You can download the 4230T120K0CU4A datasheet or visit the E-T-A website for support.

Who is the manufacturer of 4230T120K0CU4A?

E-T-A

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