High-performance, three-pole circuit breaker with thermomagnetic release and front terminals. Ideal for transformer, generator, and installation protection.
Product ModelA1B 125 MF 32-384 3p F F
Material Number1SDA076695R1
Product ID92510
Stock on Request
Last updated: 8/29/2026
Key Features
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Feature1. High Short-Circuit Breaking Capacity The A1B 125 TMF 32-400 3p FF circuit breaker offers exceptional short-circuit breaking capacity, ensuring reliable operation under demanding conditions. It can handle short-circuit currents up to 25 kA at 240 V AC and 18 kA at 380 V AC.
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Feature2. Thermomagnetic Release Equipped with a thermomagnetic release (TMF), this circuit breaker provides reliable and efficient operation. The TMF ensures that the breaker trips quickly and accurately in case of an overload or short circuit.
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Feature3. Front Terminal Connection The front terminal connection type (F) makes it easy to install and maintain the circuit breaker. This design simplifies the connection process, reducing installation time and improving overall efficiency.
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Feature4. Electrical Durability Designed for long-lasting performance, the A1B 125 TMF 32-400 3p FF circuit breaker can withstand up to 1500 electrical cycles and 8500 mechanical cycles. This durability ensures that the breaker remains operational even under frequent usage conditions.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Environmental Information
1SDL000183R0001 9AKK108467A6707
Product Net Width
76.2 mm
Product Net Height
130 mm
Product Net Depth / Length
60 mm
Product Net Weight
0.75 kg
Product Main Type
SACE FORMULA DSA
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Feature5. Compliance with International Standards The circuit breaker complies with IEC standards and is certified for CE conformity. This ensures that it meets the highest safety and performance standards, making it suitable for a wide range of applications.
Product Name
Moulded Case Circuit Breaker
Product Type
Automatic Circuit Breaker
Version
F
Electrical Durability
1500 cycle
Mechanical Durability
Nr. Operations 8500 cycle
Number of Poles
3P
Rated Current (In)
Main Circuit 32 A
Rated Impulse Withstand Voltage (Uimp)
6 kV
Rated Insulation Voltage (Ui)
690 V
Rated Operational Voltage
550 V AC 250 V DC
Rated Service Short-Circuit Breaking Capacity (Ics)
(240 V AC) 12.5 kA (380 V AC) 9 kA (415 V AC) 5 kA (440 V AC) 5 kA (480 V AC) 5 kA (500 V AC) 2.5 kA (250 V DC) 2 Poles in Series 2.5 kA
