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ABB MCCB 125 A 3 POLE 25KVA,A1A 125 TMF 125-1250 3P FF

ABB MCCB 125 A 3 POLE 25KVA,A1A 125 TMF 125-1250 3P FF

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The ABB Formula A1A 125 TMF is a 3-pole molded case circuit breaker with thermomagnetic trip unit (TMF), rated for 125 A and adjustable protection from 125 to 1250 A. It features a fixed design with front terminals, ensuring safe, reliable circuit protection in industrial and commercial power distribution. Key Benefits: Compact and robust molded case design Thermomagnetic protection for overload and short circuit Rated insulation voltage up to 690 V High breaking capacity for dependable operation Complies with IEC standards
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140.00 SR 140.0 SAR 140.00 SR Tax Excluded

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Brands ABB
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SKU: EL-01-001
Product Code: 1SDA066521R1



The ABB Formula A1A 125 TMF is a 3-pole molded case circuit breaker with thermomagnetic trip unit (TMF), rated for 125 A and adjustable protection from 125 to 1250 A. It features a fixed design with front terminals, ensuring safe, reliable circuit protection in industrial and commercial power distribution. Key Benefits: Compact and robust molded case design Thermomagnetic protection for overload and short circuit Rated insulation voltage up to 690 V High breaking capacity for dependable operation Complies with IEC standards

Specification Value
Product ABB Formula A1A 125 TMF 125–1250 (1SDA066521R1)
Type Moulded Case Circuit Breaker (MCCB), Fixed, 3-pole, Front Terminals
Rated Current (In) 125 A
Release Type TMF (Thermomagnetic), Range 125–1250 A
Rated Insulation Voltage (Ui) 690 V
Rated Impulse Withstand Voltage (Uimp) 6 kV
Rated Operational Voltage 550 V AC / 250 V DC
Rated Ultimate Short-Circuit Breaking Capacity (Icu) Up to 12.5 kA (240 V AC), 10 kA (380/415 V AC), 8 kA (440 V AC), 7.5 kA (480 V AC), 5 kA (500 V AC), 5 kA (250 V DC)
Rated Service Short-Circuit Breaking Capacity (Ics) Up to 12.5 kA (240 V AC), 10 kA (380/415 V AC), 8 kA (440 V AC), 7.5 kA (480 V AC), 5 kA (500 V AC), 2.5 kA (250 V DC, 2 poles in series)
Electrical Durability 1,500 cycles
Mechanical Durability 8,500 cycles
Power Loss (per pole) 11 W
Operating Temperature Not explicitly stated (ABB standard: -25 °C … +70 °C typical)
Dimensions (W x H x D) 76.2 mm x 130 mm x 60 mm
Weight 0.793 kg
Standards IEC certified