4230-T120-K0BU-25A The E-T-A 4230-T120-K0BU-25A is a 2-pole thermal magnetic miniature circuit breaker rated for 25A and 480VAC/125VDC. It is designed for DIN rail mounting.
Mfr Part #:

4230-T120-K0BU-25A

Mfr Name: ETA
ETA
The E-T-A 4230-T120-K0BU-25A is a 2-pole thermal magnetic miniature circuit breaker rated for 25A and 480VAC/125VDC. It is designed for DIN rail mounting.
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$ Price Range: $0.99

4230-T120-K0BU-25A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Actuator Type
Approval Agency
Breaker Type
Current Rating
Current Rating (Amps)
Illumination
Mounting Type
Number of Poles
Operating Temperature
Terminal Type
Voltage Rating

4230-T120-K0BU-25A Description

Short technical summary and product information.

The E-T-A 4230-T120-K0BU-25A is a two-pole thermal magnetic miniature circuit breaker (MCB) designed for reliable circuit protection. It complies with EN 60947-2, UL 1077, and UL 489 standards.

 

This breaker features a current rating of 25A and supports voltage ratings up to 480VAC and 125VDC. It is suitable for DIN rail mounting and has a lever actuator with visual status indication. The breaker offers a high rupture capacity of 10,000 A (AC/DC) according to UL 489 and IEC/EN 60947-2.

 

Key specifications include an operating temperature range of -35°C to +70°C and a mechanical life of 20,000 cycles. The terminals are screw type, supporting cable cross-sections up to 35 mm² with a maximum tightening torque of 2 Nm.

 

Typical applications include protection of cables, motors, generators, transformers, and electronic equipment in industrial process control systems, telecommunications, and power supplies.

4230-T120-K0BU-25A Quick Information

Product Type: Circuit Breaker
Series: 4230-T
Canonical Name: E-T-A 4230-T Series Thermal Magnetic Miniature Circuit Breaker
Subcategory: Thermal Magnetic

4230-T120-K0BU-25A Compliance

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

4230-T120-K0BU-25A Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

4230-T120-K0BU-25A Features

  • 2-pole thermal magnetic circuit breaker.
  • Rated for 25A and 480VAC/125VDC.
  • 10,000 A interrupt capacity.
  • DIN rail mounting design.
  • UL 489 and IEC/EN 60947-2 approved.

4230-T120-K0BU-25A Applications

  • Protects cables, motors, and generators.
  • Used in industrial process control.
  • Suitable for telecommunications equipment.
  • Protects power supplies and transformers.

4230-T120-K0BU-25A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the E-T-A 4230-T120-K0BU-25A circuit breaker?

The current rating is 25A.

What are the voltage ratings for the 4230-T120-K0BU-25A?

It supports up to 480VAC and 125VDC.

What type of circuit breaker is the 4230-T120-K0BU-25A?

It is a thermal magnetic miniature circuit breaker.

How many poles does this circuit breaker have?

It has 2 poles.

What is the rupture capacity of the 4230-T120-K0BU-25A?

The rupture capacity is 10,000 A (AC/DC) according to UL 489 and IEC/EN 60947-2.

What is the operating temperature range for this circuit breaker?

The ambient temperature range is -35°C to +70°C.

Is the E-T-A 4230-T120-K0BU-25A RoHS compliant?

Yes, it is RoHS3 Compliant.

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