XT3N 250 TMG 100-400 3p F F

Name: XT3N 250 TMG 100-400 3p F F
Brand: ABB
SKU: XT3N 250 TMG 100-400 3p F F

The ABB XT3N 250 TMG 100-400 3P FF circuit breaker is a high-performance, three-pole molded case circuit breaker designed for generator and transformer protection. It features a thermomagnetic release and front terminals, ensuring reliable operation and safety in electrical systems.

Product ModelXT3N 250 TMG 100-400 3p F F

Material Number1SDA068253R1

Product ID111157

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
1. High Short-Circuit Breaking CapacityThe XT3N 250 TMG 100-400 3P FF circuit breaker boasts a high short-circuit breaking capacity, making it suitable for demanding electrical applications. It can handle short-circuit currents up to 400 A, ensuring reliable operation under stress conditions.
2
2. Thermomagnetic ReleaseEquipped with a thermomagnetic release (TMG), this circuit breaker provides a reliable and efficient protection mechanism. The TMG ensures that the breaker trips in case of an overload or short circuit, maintaining the safety of the electrical system.
3
3. Front Terminal ConnectionThe front terminal connection type (FF) simplifies installation and maintenance. This design allows for easy access to the terminals, reducing the time and effort required for wiring and troubleshooting.
4
4. IEC ComplianceThe XT3N 250 TMG 100-400 3P FF circuit breaker adheres to IEC standards, ensuring compliance with international safety and performance regulations. This guarantees that the product meets the highest standards of quality and reliability.

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Environmental Information

9AKK108467A6707

Product Net Width

105 mm

Product Net Height

150 mm

Product Net Depth / Length

70 mm

Product Net Weight

1.7 kg

Circuit Breaker Type to be Associated

Generator Protection

5. Durable ConstructionBuilt with durable materials, this circuit breaker is designed to withstand the rigors of frequent use. It can handle up to 120 cycles per hour in electrical durability tests and up to 25,000 cycles in mechanical durability tests, ensuring long-lasting performance.

Product Main Type

SACE Tmax XT

Product Name

Moulded Case Circuit Breaker

Product Type

Automatic Circuit Breaker

Version

CAD Dimensional Drawing

1SDH001295R0409

Connecting Capacity Main Circuit

Busbar 85..192 mmÂ²

Current Type

AC/DC

Electrical Durability

120 cycles per hour 8000 cycle

Mechanical Durability

240 cycles per hour 25000 cycle

Number of Poles

Opening Time

CB with SOR 15 ms CB with UVR 15 ms

Order Multiple

1 piece

Power Loss

at Rated Operating Conditions per Pole 5.6 W

Rated Current (In)

100 A

Rated Frequency (f)

50 / 60 Hz

Rated Impulse Withstand Voltage (Uimp)

8 kV

Rated Instantaneous Short-Circuit Current Setting (Ii)

400 A

Rated Insulation Voltage (Ui)

800 V

Rated Operational Voltage

690 V AC 500 V DC

Rated Service Short-Circuit Breaking Capacity (Ics)

(220 V AC) 50 kA (230 V AC) 50 kA (240 V AC) 50 kA (380 V AC) 27 kA (415 V AC) 36 kA (440 V AC) 19 kA (500 V AC) 15 kA (525 V AC) 9.75 kA (690 V AC) 3.75 kA (250 V DC) 2 Poles in Series 36 kA (500 V DC) 3 Poles in Series 50 kA

Rated Ultimate Short-Circuit Breaking Capacity (Icu)

(220 V AC) 50 kA (230 V AC) 50 kA (240 V AC) 50 kA (380 V AC) 36 kA (415 V AC) 36 kA (440 V AC) 36 kA (500 V AC) 20 kA (525 V AC) 13 kA (690 V AC) 5 kA (250 V DC) 2 Poles in Series 36 kA (500 V DC) 3 Poles in Series 50 kA

Rated Uninterrupted Current (Iu)

250 A

Rated Voltage (Ur)

690 V

Recommended Screw Driver

Main Circuit M8

Release

TMG

Release Type

Setting Range

70...100 A

Short-Circuit Performance Level

Standards

IEC60947-2

Sub-type

XT3

Terminal Connection Type

Front

Terminal Type

Bolt

Tightening Torque

8 NÂ·m

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

UNSPSC

39120000

WEEE Category

5. Small Equipment (No External Dimension More Than 50 cm)

eClass

V11.1 : 27370409

Manufacturer ID

1SDA068253R1