2CCG000420R0001 ABB S401P-B2NP MCB 40kA 1P+NP Type B 2A

2CCG000420R0001 ABB S401P-B2NP MCB 40kA 1P+NP Type B 2A

ABB S401P-B2NP is a 2 A Type B 1P+NP miniature circuit breaker with protected neutral and 40 kA breaking capacity, designed for overload and short-circuit protection in SMISSLINE TP plug-in distribution systems.

SKU: 2CCG000420R0001Alt SKU: S401PB2NPMPN: 2CCG000420R0001
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Why Choose the ABB S401P-B2NP Miniature Circuit Breaker?

The ABB S401P-B2NP is a high-performance 1-pole plus protected neutral miniature circuit breaker (MCB) designed to protect electrical circuits against overload and short-circuit currents. As part of the ABB SMISSLINE TP S400P series, it combines dependable circuit protection with ABB's plug-in technology for efficient installation in commercial, industrial and critical power distribution systems.

The S401P-B2NP features a Type B tripping characteristic and a rated current of 2 A, making it particularly suitable for low-current circuits with relatively low inrush currents. Its thermal and electromagnetic tripping mechanisms provide dependable protection against sustained overloads and short-circuit faults.

With a 1P+NP configuration, a rated current of 2 A and a rated ultimate short-circuit breaking capacity of 40 kA according to IEC/EN 60947-2, the S401P-B2NP provides robust protection while its compact two-module format supports convenient SMISSLINE TP plug-in installation.

Key Advantages

  • High-performance 1P+NP miniature circuit breaker for overload and short-circuit protection.
  • 2 A rated current suitable for low-current power, control and auxiliary circuits.
  • Type B tripping characteristic suited to circuits with relatively low inrush currents.
  • 40 kA rated ultimate short-circuit breaking capacity for demanding installations.
  • Protected neutral configuration in a compact 2-module design.
  • Plug-in connection designed specifically for the ABB SMISSLINE TP system.

Key Features

  • ABB SMISSLINE TP S400P series.
  • 1P+NP configuration with protected neutral.
  • 2 A rated current.
  • Type B tripping characteristic.
  • 40 kA Icu breaking capacity.
  • Thermal protection against sustained overload currents.
  • Electromagnetic protection against short-circuit faults.
  • 2-module design with a product weight of approximately 0.230 kg.
  • Plug-in mounting for direct integration with SMISSLINE TP distribution systems.

Reliable Circuit Protection for SMISSLINE TP Systems

Miniature circuit breakers such as the ABB S401P-B2NP automatically disconnect a circuit when excessive current occurs. Thermal protection responds to sustained overload conditions, while electromagnetic protection provides rapid operation during short-circuit faults, helping protect conductors, connected equipment and electrical distribution infrastructure.

The S401P-B2NP combines Type B circuit protection with a protected neutral configuration and ABB's SMISSLINE TP plug-in architecture. Its compact two-module design supports flexible circuit distribution and efficient installation where dependable phase and neutral protection is required.

Typical Applications

  • Single-phase plus neutral electrical distribution circuits.
  • Low-current control and auxiliary circuits.
  • Commercial building distribution boards.
  • Automation and control equipment.
  • Industrial switchboards and distribution panels.
  • ABB SMISSLINE TP plug-in distribution systems.

Technical Specifications

Series SMISSLINE TP S400P
ABB order code 2CCG000420R0001
GTIN / EAN 7612271508555
Product type Miniature circuit breaker (MCB)
Pole configuration 1P+NP
Neutral Protected neutral
Rated current 2 A
Tripping characteristic Type B
Rated ultimate short-circuit breaking capacity (Icu) 40 kA
Standard IEC/EN 60947-2
Mounting system SMISSLINE TP plug-in system
Module width 2 modules
Weight approx. 0.230 kg
Pack unit 5 pieces

Frequently Asked Questions

What is the ABB S401P-B2NP used for?

The S401P-B2NP is a 1P+NP miniature circuit breaker designed to protect phase and neutral electrical circuits against overload and short-circuit currents in ABB SMISSLINE TP systems.

What is the rated current of the S401P-B2NP?

The ABB S401P-B2NP has a rated current of 2 A.

What does the Type B characteristic mean?

The Type B tripping characteristic is typically suited to circuits with relatively low inrush currents, providing dependable overload and short-circuit protection for applications such as control, auxiliary and general distribution circuits.

What is the breaking capacity of the ABB S401P-B2NP?

The S401P-B2NP has a rated ultimate short-circuit breaking capacity of 40 kA according to IEC/EN 60947-2.

Which distribution system is the S401P-B2NP designed for?

The breaker is specifically designed as a plug-in protective device for the ABB SMISSLINE TP system.

Trusted ABB Circuit Protection

ABB SMISSLINE TP S400P miniature circuit breakers provide high-performance overload and short-circuit protection with flexible plug-in installation for commercial, industrial and critical power distribution systems.