ABB 2CDS 251 001 R0104 Miniature Circuit Breaker

The ABB 2CDS 251001 R0104 is a single-pole miniature circuit breaker rated 10 A, Type C, from the System pro M compact S200 series. This current-limiting MCB combines delayed thermal tripping for overload protection with electromechanical short-circuit protection, delivering reliable fault disconnection in residential, commercial, and industrial installations. It meets IEC/EN 60898-1, IEC/EN 60947-2, and UL1077 standards, enabling deployment across global markets.

– Technical Specifications

Electrical Performance
• Rated current: 10 A
• Rated operational voltage: 230/400 V AC (IEC 60898-1); 230 V AC (IEC 60947-2)
• Rated insulation voltage: 440 V
• Rated impulse withstand voltage: 4 kV (2000 m), 5 kV (sea level), 6.2 kV
• Rated short-circuit breaking capacity: 6 kA @ 230/400 V AC
• Rated ultimate short-circuit breaking capacity: 10 kA @ 230/400 V AC; 20 kA @ 133 V AC and 24 V DC
• Rated service short-circuit breaking capacity: 7.5 kA @ 230 V AC; 15 kA @ 133 V AC
• Energy limiting class: 3
• Power loss: 2.1 W per pole
• Frequency: 50 Hz / 50–60 Hz
• DC application voltage: up to 72 V DC
• UL/CSA interrupting rating: 6 kA @ 277 V AC; 10 kA @ 120 V and 60 V DC

Physical Characteristics
• Mounting: DIN rail (TH35-15 and TH35-7.5)
• Dimensions: 17.5 mm width × 88 mm height × 69 mm depth
• Net weight: 0.125 kg
• Housing material: Insulation Group II, RAL 7035
• Protection degree: IP20; IP40 with enclosure cover
• Pollution degree: 3
• Terminal type: screw terminals accepting 0.75–35 mm² (rigid/stranded)
• Actuator: black, sealable, I/O marking

– Key Features

• Single-pole configuration for individual circuit protection
• Type C tripping characteristic suited to general-purpose branch circuits
• Compact footprint: 1 modular spacing
• Dual protection mechanism: thermal overload + electromechanical short-circuit
• DIN rail mounting for standard panel integration
• Screw terminal connectivity rated to 35 mm²

– Typical Applications

Residential distribution boards, commercial lighting and receptacle circuits, industrial control panel protection, and branch circuit defense in 230/400 V AC systems.

– Compatibility & Integration

Integrates with System pro M compact S200 infrastructure. Compliant with IEC/EN 60898-1 and IEC/EN 60947-2, permitting use in AC systems from 12 V to 253 V nominal. UL1077 certification supports North American installations.