ABB XT3N 250 TMG 80-400 3p F F: High-performance thermomagnetic circuit breaker for generator protection, rated for 80-400 A, with 36 kA ultimate short-circuit breaking capacity.
Product ModelXT3N 250 TMG 80-400 3p F F
Material Number1SDA068252R1
Product ID83191
Stock on Request
Last updated: 8/29/2026
Key Features
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Feature1. Reliable Generator Protection The ABB XT3N 250 TMG 80-400 3p F F is designed to provide reliable protection for generators, ensuring safe operation under various conditions.
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Feature2. High Performance With a rated ultimate short-circuit breaking capacity of 36 kA, this circuit breaker offers exceptional performance in high-stress electrical environments.
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Feature3. Thermomagnetic Release Equipped with a thermomagnetic release mechanism, the XT3N 250 TMG 80-400 3p F F ensures efficient and reliable operation, even in extreme temperature conditions.
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Feature4. Front Terminal Connection The front terminal connection type (F) makes installation and maintenance easier, providing quick access to the circuit breaker's terminals.
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
Feature5. Compliance with IEC Standards The XT3N 250 TMG 80-400 3p F F meets IEC standards, ensuring it is compliant with international safety and performance requirements, providing peace of mind for users.
Product Main Type
SACE Tmax XT
Product Name
Moulded Case Circuit Breaker
Product Type
Automatic Circuit Breaker
Version
F
CAD Dimensional Drawing
1SDH001295R0409
Connecting Capacity Main Circuit
Busbar 85..192 mm²
Current Type
AC/DC
Electrical Durability
120 cycles per hour 8000 cycle
Mechanical Durability
240 cycles per hour 25000 cycle
Number of Poles
3P
Opening Time
CB with SOR 15 ms CB with UVR 15 ms
Order Multiple
1 piece
Power Loss
at Rated Operating Conditions per Pole 4.8 W
Rated Current (In)
80 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
(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
TM
Setting Range
56...80 A
Short-Circuit Performance Level
N
Standards
IEC60947-2
Sub-type
XT3
Terminal Connection Type
Front
Terminal Type
Bolt
Tightening Torque
8 N·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
Q
UNSPSC
39120000
WEEE Category
5. Small Equipment (No External Dimension More Than 50 cm)
