A1N 125 TMF 40-400 2p F F

Name: A1N 125 TMF 40-400 2p F F
Brand: ABB
SKU: A1N 125 TMF 40-400 2p F F

The ABB A1N 125 TMF 40-400 2P FF is a high-performance moulded case circuit breaker with a rated current of 40 A and a short-circuit breaking capacity of 36 kA at 415 V AC. It features a thermomagnetic release (TMF) and front terminals, making it ideal for reliable and efficient electrical distribution in various settings.

Product ModelA1N 125 TMF 40-400 2p F F

Material Number1SDA066500R1

Product ID72266

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable PerformanceThe ABB A1N 125 TMF 40-400 2P FF is designed to provide consistent and reliable performance, ensuring that your electrical systems operate smoothly and efficiently.
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2. Thermomagnetic Release (TMF)Equipped with a thermomagnetic release, this circuit breaker automatically trips in case of an overload or short circuit, protecting your equipment and personnel from potential hazards.
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3. Front Terminal ConnectionThe front terminal connection of the A1N 125 TMF makes it easy to install and maintain, reducing the time and effort required for electrical connections.
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4. High Breaking CapacityWith a short-circuit breaking capacity of 36 kA at 415 V AC, this circuit breaker can handle high current surges effectively, ensuring the safety and integrity of your electrical system.

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

50.8 mm

Product Net Height

130 mm

Product Net Depth / Length

60 mm

Product Net Weight

0.542 kg

Product Main Type

SACE FORMULA

5. Durable DesignConstructed with high-quality materials, the ABB A1N 125 TMF 40-400 2P FF is built to withstand the rigors of frequent use and harsh environmental conditions, providing long-lasting performance and reliability.

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) 25 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) 50 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

1SDA066500R1