A1B 125 TMF 30-400 4p F F

Name: A1B 125 TMF 30-400 4p F F
Brand: ABB
SKU: A1B 125 TMF 30-400 4p F F

Short Description: The ABB A1B 125 TMF 30-400 4P FF is a fixed three-pole moulded case circuit breaker with front terminals and thermomagnetic release. It features a rated current of 30 A and a breaking capacity of 12.5 kA, making it ideal for applications requiring high reliability and efficiency[2].

Product ModelA1B 125 TMF 30-400 4p F F

Material Number1SDA066736R1

Product ID92764

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. High Reliability and EfficiencyThe ABB A1B 125 TMF 30-400 4P FF is designed to provide reliable and efficient electrical distribution. Its high breaking capacity of 12.5 kA ensures safe operation under various short-circuit conditions.
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2. Versatile ApplicationSuitable for a wide range of applications, including transformers, generators, and installation protection, this circuit breaker is versatile and adaptable to different electrical systems.
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3. Front Terminal ConnectionEquipped with front terminals, the ABB A1B 125 TMF 30-400 4P FF offers easy and convenient connection options, simplifying the installation process and reducing setup time.
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4. Thermomagnetic ReleaseFeaturing a thermomagnetic release (TMF), this circuit breaker ensures reliable operation by automatically tripping in case of an overload or short circuit, protecting the electrical system from damage.

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Environmental Information

1SDL000183R0001 9AKK108467A6707

Product Net Width

101.6 mm

Product Net Height

130 mm

Product Net Depth / Length

60 mm

Product Net Weight

1 kg

Product Main Type

SACE FORMULA

5. Compliance with International StandardsThe ABB A1B 125 TMF 30-400 4P FF meets international standards for electrical safety and performance, including IEC certifications, ensuring it is compatible with a variety of global electrical systems.

Moulded Case Circuit Breaker

Product Type

Automatic Circuit Breaker

Version

Electrical Durability

1500 cycle

Mechanical Durability

Nr. Operations 8500 cycle

Number of Poles

Opening Time

CB with SOR 15 ms CB with UVR 15 ms

Power Loss

at Rated Operating Conditions per Pole 4 W

Rated Current (In)

Main Circuit 30 A

Rated Impulse Withstand Voltage (Uimp)

6 kV

Rated Insulation Voltage (Ui)

690 V

Rated Operational Voltage

550 V AC 250 V DC

Rated Service Short-Circuit Breaking Capacity (Ics)

(240 V AC) 12.5 kA (380 V AC) 9 kA (415 V AC) 5 kA (440 V AC) 5 kA (480 V AC) 5 kA (500 V AC) 2.5 kA (250 V DC) 2 Poles in Series 2.5 kA

Rated Ultimate Short-Circuit Breaking Capacity (Icu)

(240 V AC) 25 kA (380 V AC) 18 kA (415 V AC) 18 kA (440 V AC) 15 kA (480 V AC) 10 kA (500 V AC) 5 kA (250 V DC) 5 kA

Rated Uninterrupted Current (Iu)

125 A

Release

TMF

Release Type

Short-Circuit Performance Level

Standards

IEC

Sub-type

Terminal Connection Type

Front

ETIM 8

EC000228 - Power circuit-breaker for trafo/generator/installation protection

ETIM 9

EC000228 - Power circuit-breaker for trafo/generator/installation protection

Object Classification Code

WEEE Category

5. Small Equipment (No External Dimension More Than 50 cm)

eClass

V11.1 : 27370409

Manufacturer ID

1SDA066736R1