S203M-Z2NA

Name: S203M-Z2NA
Brand: ABB
SKU: S203M-Z2NA

The ABB S203M-Z2NA miniature circuit breaker offers reliable protection with delayed thermal and electromechanical tripping mechanisms. Suitable for residential, commercial, and industrial use, ensuring safety and efficiency.

Product ModelS203M-Z2NA

Material Number2CDS273103R0278

Product ID78170

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
1. Reliable Protection MechanismsThe S203M-Z2NA features two robust tripping mechanisms: delayed thermal for overload protection and electromechanical for short circuit protection, ensuring reliable operation under various conditions.
2
2. Compliance with International StandardsAll MCBs in the S200M range comply with IEC/EN 60898-1 and IEC/EN 60947-2, making them suitable for residential, commercial, and industrial applications worldwide.
3
3. Versatile Configuration OptionsAvailable in various configurations (1P, 1P+N, 2P, 3P, 3P+N, 4P) and characteristics (B, C, D, K, Z), the S203M-Z2NA can be tailored to meet specific electrical needs.
4
4. High Breaking CapacityWith breaking capacities up to 10 kA at 230/400 V AC, the S203M-Z2NA provides robust short-circuit protection, ensuring the integrity 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

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)