A1N 125 TMF 40-400 4p F F

Name: A1N 125 TMF 40-400 4p F F
Brand: ABB
SKU: A1N 125 TMF 40-400 4p F F

The ABB A1N 125 TMF 40-400 4P FF is a robust molded case circuit breaker designed to handle high currents and short-circuit interruptions. It features a thermomagnetic release mechanism and is certified to IEC standards, making it suitable for a wide range of electrical applications.

Product Model

Material Number1SDA066761R1

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. High Breaking CapacityThe ABB A1N 125 TMF 40-400 4P FF boasts a breaking capacity of 36 kA, ensuring reliable short-circuit interruption and protecting your electrical system from damage.
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2. Efficient OperationWith a current rating of 40 amps, this circuit breaker is designed to handle high currents efficiently, making it ideal for demanding electrical applications.
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3. Thermomagnetic ReleaseThe thermomagnetic release mechanism provides a reliable and fast response to overcurrent conditions, ensuring the safety of your electrical system.
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4. IEC CertificationThe product is certified to IEC standards, ensuring compliance with international safety and performance requirements, making it a trusted choice for various electrical installations.

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. Versatile ApplicationThe ABB A1N 125 TMF 40-400 4P FF is suitable for a wide range of applications, including industrial, commercial, and residential settings, due to its robust design and reliable performance.

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 4.5 W

Rated Current (In)

Main Circuit 40 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) 50 kA (380 V AC) 18 kA (415 V AC) 7.5 kA (440 V AC) 6.25 kA (480 V AC) 4.5 kA (500 V AC) 2.5 kA (250 V DC) 2 Poles in Series 5 kA

Rated Ultimate Short-Circuit Breaking Capacity (Icu)

(240 V AC) 100 kA (380 V AC) 36 kA (415 V AC) 36 kA (440 V AC) 25 kA (480 V AC) 18 kA (500 V AC) 10 kA (250 V DC) 10 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

1SDA066761R1