Compact and reliable DC miniature circuit breaker from ABB, compliant with IEC/EN 60947-2 and UL 1077 standards, suitable for residential, commercial, and industrial applications.
Product ModelS202MTR-B20 DC
Material Number2CDS272565R0205
Product ID78662
Stock on Request
Last updated: 8/29/2026
Key Features
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1. Compact Design DescriptionThe ABB S202MTR-B20 DC miniature circuit breaker boasts a compact design, measuring 35 mm in width, 88 mm in height, and 69 mm in depth, making it ideal for space-constrained environments.
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2. Reliable Protection DescriptionDesigned to provide reliable protection, the S202MTR-B20 meets the high standards of IEC/EN 60947-2 and UL 1077, ensuring safe operation in demanding conditions.
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3. Wide Operating Temperature Range DescriptionThis circuit breaker operates within a wide temperature range of -25°C to +55°C, making it suitable for various environmental conditions.
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4. High Breaking Capacity DescriptionWith a high breaking capacity of 10 kA DC, the S202MTR-B20 can handle short circuits effectively, ensuring the safety of your electrical system.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Standards
IEC/EN 60947-2
Tripping Characteristic
B
Rated Voltage (Ur)
500 V DC
Rated Operational Voltage
440 V AC acc. to IEC 60898-1 440 V acc. to IEC 60947-2 240 V AC
Operational Voltage
Minimum 12 V AC / 12 V DC
Rated Insulation Voltage (Ui)
acc. to IEC/EN 60664-1 440 V
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5. Easy Installation DescriptionThe S202MTR-B20 features screw terminals for easy installation, allowing for quick and secure mounting on DIN rail systems, such as TH35-15 and TH35-7.5, according to IEC 60715 standards.
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6. Compliance with Standards DescriptionThe ABB S202MTR-B20 is compliant with IEC/EN 60898-1, IEC/EN 60947-2, and UL 1077 standards, ensuring it meets the necessary safety and performance requirements for various applications.
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7. Energy Efficiency DescriptionWith a power loss of 5 W at rated operating conditions per pole, the S202MTR-B20 is energy-efficient, reducing overall system costs and environmental impact.
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8. Mounting Flexibility DescriptionThe circuit breaker can be mounted in any position, providing flexibility in installation, and it supports various connecting capacities, including busbars, flexible conductors, and rigid conductors.
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9. Indication and Monitoring DescriptionThe S202MTR-B20 features a contact position indication with red ON and green OFF, allowing for easy monitoring of the circuit breaker’s status.
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10. Environmental Durability DescriptionThe housing material is Insulation Group II, RAL 7035, ensuring high mechanical endurance of 20,000 cycles and resistance to shock and vibration according to IEC/EN 60068-2-27 and IEC/EN 61373 standards.
