High-performance, fixed four-pole circuit breaker with thermomagnetic release, suitable for power distribution systems, rated at 250 A, and supporting both AC and DC voltages.
Product ModelXT3S 250 TMG 80-400 4p F F
Material Number1SDA068273R1
Product ID87205
Stock on Request
Last updated: 8/29/2026
Key Features
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1. Reliable ProtectionThe XT3S 250 TMG 80-400 4p FF offers reliable protection against short circuits and overcurrents, ensuring the safety and integrity of your electrical system.
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2. High Current RatingWith a rated current of 250 A, this circuit breaker is designed to handle high electrical loads, making it ideal for demanding applications.
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3. Versatile Voltage SupportThe product supports both AC and DC voltages, providing flexibility in its application across various electrical systems.
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4. Thermomagnetic ReleaseThe thermomagnetic release mechanism ensures quick and efficient operation during short circuits, minimizing downtime and ensuring continuous system operation.
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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
140 mm
Product Net Height
150 mm
Product Net Depth / Length
70 mm
Product Net Weight
2.1 kg
Circuit Breaker Type to be Associated
Generator Protection
5. Compliance with EU DirectivesThe XT3S 250 TMG 80-400 4p FF complies with EU Directive 2011/65/EU and Amendment 2015/863, ensuring it meets the highest environmental standards for RoHS compliance.
Product Main Type
SACE Tmax XT
Product Name
Moulded Case Circuit Breaker
Product Type
Automatic Circuit Breaker
Version
F
CAD Dimensional Drawing
1SDH001295R0483
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
4P
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) 20 kA (500 V AC) 15 kA (525 V AC) 10 kA (690 V AC) 3 kA (250 V DC) 2 Poles in Series 27 kA (500 V DC) 3 Poles in Series 37.5 kA
(220 V AC) 85 kA (230 V AC) 85 kA (240 V AC) 85 kA (380 V AC) 50 kA (415 V AC) 50 kA (440 V AC) 40 kA (500 V AC) 30 kA (525 V AC) 20 kA (690 V AC) 6 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
S
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)
