ABB S750DR Interruttore automatico magnetotermico curva E 1 polo 35 A 2CDS781001R5352

Electricians and panel builders use the ABB S750DR miniature circuit breaker to protect circuits with high inrush currents, such as motors, transformers, and control circuits. This 1-pole MCB is rated at 35 A with E-characteristic tripping, providing reliable protection against overloads and short circuits in industrial and commercial installations.

Key specifications

• Series: S750DR
• Number of poles: 1
• Rated current: 35 A
• Tripping characteristic: E
• Rated operational voltage: 230/400 V AC
• Rated insulation voltage: 440 V AC
• Rated impulse withstand voltage: 6 kV
• Rated frequency: 50/60 Hz
• Rated short-circuit breaking capacity (Icn): 10 kA (IEC/EN 60898-1)
• Rated ultimate short-circuit breaking capacity (Icu): 25 kA (IEC/EN 60947-2 at 230 V AC)
• Energy limiting class: 3
• Electrical endurance: 10000 cycles
• Mechanical endurance: 20000 cycles
• Mounting type: DIN rail (TH35-7.5)
• Terminal type: Screw terminals
• Connection capacity (rigid): 1 ... 35 mm²
• Degree of protection: IP20 (terminals), IP40 (enclosure)
• Operating temperature range: -25 to +55 °C
• Standards: IEC/EN 60898-1, IEC/EN 60947-2

Why choose it

The E-characteristic ensures the breaker tolerates high inrush currents without nuisance tripping, while still providing fast short-circuit protection. Its compact 1-pole design saves space on the DIN rail, and the screw terminals accept a wide range of conductor sizes up to 35 mm².

Ideal use cases

• Protection of motor circuits with high starting currents
• Control transformer circuits
• Industrial control panels
• Commercial distribution boards

Good to know

The S750DR series is designed for reliable operation in demanding environments, with a wide operating temperature range and high mechanical endurance. It complies with international standards for circuit breakers.