High-performance, three-pole moulded case circuit breaker with thermomagnetic release, suitable for applications requiring reliable and efficient electrical distribution.
Product ModelT4H 250 TMA 125-1250 3p F F
Material Number1SDA054212R1
Product ID74951
Stock on Request
Last updated: 8/29/2026
Key Features
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1. Reliable OperationThe ABB T4H 250 TMA 125-1250 3P FF circuit breaker is designed to provide reliable operation in a wide range of electrical applications. Its thermomagnetic release ensures consistent performance under various conditions.
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2. High Current CapacityWith a current rating of 125-1250 A, this circuit breaker is capable of handling high current demands, making it ideal for heavy-duty electrical systems.
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3. Safety Standards ComplianceThe product meets stringent safety standards, including IEC 60947 and UL certifications, ensuring it meets the highest safety requirements for electrical installations.
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4. Efficient DesignThe moulded case design of the T4H 250 TMA 125-1250 3P FF circuit breaker provides efficient heat dissipation, reducing the risk of overheating and extending the product's lifespan.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Environmental Information
9AKK10103A1057
Product Net Width
105 mm
Product Net Height
205 mm
Product Net Depth / Length
103.5 mm
Product Net Weight
2.35 kg
Product Main Type
SACE Tmax T
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5. Versatile ApplicationSuitable for both AC and DC applications, this circuit breaker can be used in a variety of settings, including transformer and generator installations, making it a versatile choice for electrical engineers.
Product Name
Moulded Case Circuit Breaker
Product Type
Automatic Circuit Breaker
Suitable For
T4
Suitable for Product Class
Moulded Case Circuit Breakers
Version
F
Electrical Durability
8000 cycle 120 cycles per hour
Mechanical Durability
20000 cycle 240 cycles per hour
Number of Poles
3
Power Loss
at Rated Operating Conditions per Pole 6.2 W
Rated Current (In)
125 A
Rated Impulse Withstand Voltage (Uimp)
8 kV
Rated Insulation Voltage (Ui)
1000 V
Rated Operational Voltage
690 V AC 750 V DC
Rated Service Short-Circuit Breaking Capacity (Ics)
(220 V AC) 100 kA (230 V AC) 100 kA (380 V AC) 70 kA (400 V AC) 70 kA (415 V AC) 70 kA (440 V AC) 65 kA (500 V AC) 50 kA (690 V) 40 kA
(220 V AC) 100 kA (230 V AC) 100 kA (380 V AC) 70 kA (400 V AC) 70 kA (415 V AC) 70 kA (440 V AC) 65 kA (500 V AC) 50 kA (690 V AC) 40 kA (250 V DC) 2 Poles in Series 70 kA (500 V DC) 2 Poles in Series 50 kA (750 V DC) 3 Poles in Series 36 kA
Rated Uninterrupted Current (Iu)
250 A
Release
TMA
Release Type
TM
Short-Circuit Performance Level
H
Standards
IEC
Sub-type
T4
Terminal Connection Type
Fixed Circuit-Breakers Front
Test Voltage Max (Utest)
3500 V
Test Voltage at Industrial Frequency for 1 Minute
3500 V
ETIM 8
EC000228 - Power circuit-breaker for trafo/generator/installation protection
Object Classification Code
Q
UNSPSC
39121100
WEEE Category
5. Small Equipment (No External Dimension More Than 50 cm)
eClass
V11.1 : 27370409
Manufacturer ID
1SDA054212R1
ABB T4H 250 TMA 125-1250 3P FF Circuit Breaker - High Performance and Reliability | INDPRT
