2CCS571001R0065 ABB S401M-B6 Miniature Circuit Breaker 1P Type B 6A 10kA

2CCS571001R0065 ABB S401M-B6 Miniature Circuit Breaker 1P Type B 6A 10kA

ABB S401M-B6 is a 6 A single-pole Type B miniature circuit breaker with 10 kA rated short-circuit capacity, designed for overload and short-circuit protection in SMISSLINE TP plug-in distribution systems.

SKU: 2CCS571001R0065Alt SKU: S401MB6MPN: 2CCS571001R0065
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Why Choose the ABB S401M-B6 Miniature Circuit Breaker?

The ABB S401M-B6 is a compact and reliable single-pole miniature circuit breaker (MCB) designed to protect electrical circuits against overload and short-circuit conditions. As part of the ABB SMISSLINE TP S400M series, it combines dependable circuit protection with the convenient plug-in architecture of the SMISSLINE TP distribution system.

This miniature circuit breaker uses thermal and electromagnetic tripping to protect cables and connected equipment from damaging overcurrents. Its Type B tripping characteristic is suited to circuits with relatively low inrush currents, making the S401M-B6 particularly appropriate for resistive loads, lighting circuits, control circuits and general electrical distribution.

With a rated current of 6 A, a rated short-circuit capacity of 10 kA and a 230 V AC rated operational voltage, the S401M-B6 provides robust protection in a space-saving one-module format. Direct connection to the SMISSLINE TP plug-in socket system helps simplify installation, replacement and distribution-board configuration.

Key Advantages

  • Reliable overload and short-circuit protection for electrical circuits.
  • 6 A rated current for low-current distribution and control applications.
  • Type B tripping characteristic suited to circuits with low inrush currents.
  • 10 kA rated short-circuit capacity according to EN 60898-1.
  • Compact single-pole, one-module design saves distribution-board space.
  • Direct plug-in connection to the ABB SMISSLINE TP system.

Key Features

  • ABB SMISSLINE TP S400M series.
  • 6 A rated current.
  • Type B tripping characteristic.
  • 1 protected pole.
  • 230 V AC rated operational voltage.
  • 10 kA rated short-circuit capacity.
  • 50–60 Hz operating frequency.
  • Thermal overload and electromagnetic short-circuit protection.
  • IP20 terminal protection.
  • Connection capacity up to 35 mm² for rigid conductors.
  • Compact 18 mm modular width.

Reliable Circuit Protection for SMISSLINE TP Systems

Miniature circuit breakers such as the ABB S401M-B6 protect electrical installations by automatically interrupting excessive current. Thermal tripping responds to sustained overloads, while electromagnetic tripping provides rapid disconnection when a short-circuit condition occurs.

The S400M series is designed specifically for the ABB SMISSLINE TP plug-in distribution platform. Its modular construction and direct plug-in connection simplify installation and servicing while providing dependable protection for commercial, industrial and automation electrical systems.

Typical Applications

  • ABB SMISSLINE TP plug-in distribution boards.
  • Lighting and resistive-load circuits.
  • Industrial control and automation circuits.
  • Commercial electrical distribution systems.
  • Machinery auxiliary circuits.
  • Building services and infrastructure installations.

Technical Specifications

Series SMISSLINE TP S400M
ABB order code 2CCS571001R0065
Product type Miniature circuit breaker (MCB)
Rated current 6 A
Tripping characteristic Type B
Number of poles 1
Number of protected poles 1
Rated operational voltage 230 V AC
Frequency 50–60 Hz
Rated short-circuit capacity (Icn) 10 kA
Rated insulation voltage (Ui) 440 V
Rated impulse withstand voltage (Uimp) 4 kV
Energy limiting class 3
Protection rating IP20
Pollution degree 3
Overvoltage category III
Operating ambient temperature -25 to +60 °C
Flexible conductor capacity 0.75–25 mm²
Rigid conductor capacity 0.75–35 mm²
Width 18 mm
Height 91 mm
Built-in depth 75 mm
Modular width 1 module
Weight 110 g
Standard IEC/EN 60898-1
Mounting system SMISSLINE TP plug-in system

Frequently Asked Questions

What is the ABB S401M-B6 used for?

The ABB S401M-B6 provides overload and short-circuit protection for electrical circuits installed in compatible ABB SMISSLINE TP distribution systems.

What is the rated current of the S401M-B6?

The S401M-B6 has a rated current of 6 A.

What does the Type B tripping characteristic mean?

The Type B characteristic is intended for circuits with relatively low inrush currents, making it suitable for applications such as resistive loads, lighting and general control circuits.

What is the short-circuit capacity of the ABB S401M-B6?

The S401M-B6 has a rated short-circuit capacity (Icn) of 10 kA according to EN 60898-1.

Which distribution system is the S401M-B6 designed for?

The S401M-B6 is a plug-in miniature circuit breaker designed for the ABB SMISSLINE TP system, enabling direct connection to compatible SMISSLINE plug-in socket bases.

Trusted ABB Circuit Protection

ABB SMISSLINE TP miniature circuit breakers combine dependable electrical protection with a compact plug-in architecture designed to simplify installation, distribution and maintenance in modern commercial and industrial electrical systems.