S203M-D8NA

Name: S203M-D8NA
Brand: ABB
SKU: S203M-D8NA

The ABB S203M-D8NA Miniature Circuit Breaker is a current-limiting device designed for reliable protection against overloads and short circuits. It features two tripping mechanisms and is available in various configurations, making it suitable for a wide range of applications.

Product ModelS203M-D8NA

Material Number2CDS273103R0081

Product ID79971

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
1. Reliable ProtectionThe ABB S203M-D8NA offers dual tripping mechanisms, ensuring both delayed thermal and electromechanical protection against overloads and short circuits.
2
2. Versatile ConfigurationAvailable in different characteristics (B, C, D, K, Z) and configurations (1P, 1P+N, 2P, 3P, 3P+N, 4P), this MCB can be tailored to various electrical needs.
3
3. High Breaking CapacityWith breaking capacities up to 10 kA at 230/400 V AC, this circuit breaker provides robust protection against high current surges.
4
4. Compliance with StandardsAll MCBs in the S200M range comply with IEC/EN 60898-1 and IEC/EN 60947-2, ensuring they meet international safety standards.
5

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

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) 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)