The ABB S202M-B40 is a reliable miniature circuit breaker designed for DC and AC applications, providing high interrupting ratings and compliance with major international standards.
Product ModelS202M-B40
Material Number2CDS272001R0405
Product ID77527
Stock on Request
Last updated: 8/29/2026
Key Features
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1. High Interrupting Rating DescriptionThe S202M-B40 boasts an impressive interrupting rating of 10 kA for DC and 10 kA for AC, ensuring reliable operation under short-circuit conditions.
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2. Compliance with International Standards DescriptionThis miniature circuit breaker meets the stringent requirements of IEC/EN 60898-2 and IEC/EN 60947-2, ensuring compatibility with various global electrical systems.
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3. Versatile Application DescriptionSuitable for both DC and AC applications, the S202M-B40 is ideal for residential, commercial, and industrial settings, providing flexible protection options.
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4. Compact Design DescriptionDesigned for easy installation on DIN rail, the S202M-B40 offers a compact and space-saving solution for your electrical protection needs.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Standards
IEC/EN 60898-1 CSA 22.2 No. 235 IEC/EN 60947-2 UL 1077
Tripping Characteristic
B
Rated Operational Voltage
acc. to IEC 60898-1 400 V AC acc. to IEC 60898-1 400 V acc. to IEC 60947-2 440 V AC
Operational Voltage
Maximum (Incl. Tolerance) 125 V DC Maximum (Incl. Tolerance) 440 V AC Minimum 12 V AC Minimum 12 V DC
Rated Insulation Voltage (Ui)
acc. to IEC/EN 60664-1 440 V
Rated Impulse Withstand Voltage (Uimp)
5
5. Reliability and Durability DescriptionWith a robust construction and high electrical endurance, the S202M-B40 ensures reliable operation over a long period, minimizing downtime and maintenance requirements.
4 kV at 2000 m 5 kV at Sea Level 6.2 kV
Dielectric Test Voltage
50/60 Hz-1 min: 2 kV
Input Voltage Type
AC/DC
Rated Current (In)
40 A
Rated Short-Circuit Capacity
(AC) 10 kA (230 V AC) 10 kA (400 V AC) 10 kA (400 V) 10 kA
