A1B 125 TMF 25-400 4p F F

Name: A1B 125 TMF 25-400 4p F F
Brand: ABB
SKU: A1B 125 TMF 25-400 4p F F

The ABB A1B 125 TMF 25-400 4P FF is a reliable moulded case circuit breaker with a thermomagnetic release, front terminals, and IEC compliance. Ideal for industrial and commercial applications, it ensures robust circuit protection and operational efficiency.

Product ModelA1B 125 TMF 25-400 4p F F

Material Number1SDA066735R1

Product ID92663

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable PerformanceThe ABB A1B 125 TMF 25-400 4P FF is designed to provide consistent and reliable performance, ensuring uninterrupted operation in industrial and commercial environments.
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2. Thermomagnetic ReleaseEquipped with a thermomagnetic release, this circuit breaker automatically trips in case of an overload or short circuit, enhancing safety and reducing the risk of electrical fires.
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3. Front Terminal ConnectionThe front terminal connection makes it easy to install and maintain, reducing downtime and increasing operational efficiency.
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4. IEC ComplianceMeets IEC standards, ensuring that the circuit breaker operates within the highest safety and performance standards, providing peace of mind for users.

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. Durable DesignBuilt to withstand 1500 electrical cycles and 8500 mechanical cycles, this circuit breaker is designed to last, providing long-term reliability and durability in demanding applications.

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 3 W

Rated Current (In)

Main Circuit 25 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

1SDA066735R1