A1B 125 TMF 30-400 3p F F

Name: A1B 125 TMF 30-400 3p F F
Brand: ABB
SKU: A1B 125 TMF 30-400 3p F F

Short Description: The ABB A1B 125 TMF 30-400 3p F F is a fixed three-pole moulded case circuit breaker with thermomagnetic release, suitable for transformer, generator, and installation protection. It features a rated current of 125 A and a short-circuit breaking capacity of up to 12.5 kA at 240 V AC.

Product ModelA1B 125 TMF 30-400 3p F F

Material Number1SDA066700R1

Product ID72229

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
1. Reliable ProtectionThe ABB A1B 125 TMF 30-400 3p F F provides reliable protection against short circuits and overcurrents, ensuring the safety of your electrical system.
2
2. High PerformanceWith a rated current of 125 A and a short-circuit breaking capacity of up to 12.5 kA at 240 V AC, this circuit breaker offers high performance in various applications.
3
3. Efficient OperationDesigned for efficient operation, the ABB A1B 125 TMF 30-400 3p F F minimizes power loss at rated operating conditions, reducing energy consumption and heat generation.
4
4. Versatile UseSuitable for transformer, generator, and installation protection, this circuit breaker is versatile and can be used in a wide range of electrical systems.

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

76.2 mm

Product Net Height

130 mm

Product Net Depth / Length

60 mm

Product Net Weight

0.783 kg

Product Main Type

SACE FORMULA

5. Compliance and CertificationsThe ABB A1B 125 TMF 30-400 3p F F meets IEC standards and is CE compliant, ensuring that it adheres to international safety and performance standards.

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

1SDA066700R1