A1A 125 TMF 125-1250 4p F F

Name: A1A 125 TMF 125-1250 4p F F
Brand: ABB
SKU: A1A 125 TMF 125-1250 4p F F

The ABB A1A 125 TMF 125-1250 4P FF is a robust, thermomagnetic release molded case circuit breaker with front terminals, offering 10 kA breaking capacity and 125 A current rating for reliable industrial applications.

Product ModelA1A 125 TMF 125-1250 4p F F

Material Number1SDA066535R1

Product ID92768

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. High Breaking CapacityThe ABB A1A 125 TMF 125-1250 4P FF boasts a breaking capacity of 10 kA, ensuring robust short-circuit protection and reliable operation in demanding industrial environments.
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2. Thermomagnetic ReleaseEquipped with a thermomagnetic release mechanism, this circuit breaker provides reliable and efficient operation by automatically tripping in case of excessive current or thermal overload.
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3. Front Terminal ConnectionThe front terminal connection makes installation and maintenance easier, reducing downtime and enhancing overall efficiency in your electrical system.
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4. High Current RatingWith a current rating of 125 A, this circuit breaker is designed to handle high currents, making it suitable for a wide range of industrial applications.

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 IEC StandardsThe ABB A1A 125 TMF 125-1250 4P FF meets IEC standards, ensuring compliance with international safety and performance regulations, providing peace of mind for your electrical infrastructure.

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 11 W

Rated Current (In)

Main Circuit 125 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) 5 kA (415 V AC) 5 kA (440 V AC) 4 kA (480 V AC) 3.75 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) 10 kA (380 V AC) 10 kA (415 V AC) 10 kA (440 V AC) 8 kA (480 V AC) 7.5 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

1SDA066535R1