XT3N 250 TMG 63-400 3p F F

Name: XT3N 250 TMG 63-400 3p F F
Brand: ABB
SKU: XT3N 250 TMG 63-400 3p F F

Short Description: The ABB XT3N 250 TMG 63-400 3P FF is a high-performance, fixed three-pole circuit breaker with thermomagnetic release and front terminals, designed for generator and transformer protection.

Product ModelXT3N 250 TMG 63-400 3p F F

Material Number1SDA068251R1

Product ID83096

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. High Performance ProtectionThe XT3N 250 TMG 63-400 3P FF circuit breaker provides robust protection against short circuits and overloads, ensuring reliable operation in demanding electrical environments.
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2. Thermomagnetic ReleaseEquipped with a thermomagnetic release mechanism, this circuit breaker automatically trips in case of a fault, ensuring quick and safe shutdown of the electrical system.
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3. Front Terminal ConnectionThe front terminal connection type makes it easy to install and maintain, reducing downtime and increasing overall efficiency.
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4. Wide Operating RangeDesigned to operate at 50/60 Hz, this circuit breaker supports a wide range of applications, including generator and transformer protection.

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. Compliance with International StandardsMeets IEC standards for short-circuit performance, ensuring that the circuit breaker operates safely and effectively in various electrical systems around the world.

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 4.3 W

Rated Current (In)

63 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

44.1...63 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

1SDA068251R1