ABB F204 B S-125/0.3 L RCD - 4P - Type B Selective - 125A - 300mA

ABB F204 B S-125/0.3 L RCD – 4P – Type B Selective – 125A – 300mA

ABB F204BS-125/0.3L 4 pole Type B selective residual current circuit breaker with 125 A rated current, 300 mA sensitivity and delayed high immunity operation for advanced industrial electrical protection.

SKU: F204BS-125/0.3LAlt SKU: F204 B S-125/0.3-LMPN: 2CSF204823R3950
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Manufacturer Lead Time Estimated Delivery 9 weeks
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Why Choose the ABB F204BS-125/0.3L Residual Current Circuit Breaker?

The ABB F204BS-125/0.3L, also known as F204 B S-125/0.3-L, is a professional 4 pole residual current circuit breaker (RCCB) designed to protect electrical installations against earth fault currents in demanding commercial and industrial environments. As part of the trusted ABB F200 Type B series, it provides advanced protection for circuits containing modern power electronic equipment.

This RCCB features Type B residual current protection, enabling detection of alternating residual currents, pulsating DC residual currents and smooth DC earth fault currents. Its selective delayed High Immunity operating characteristic helps reduce unwanted nuisance tripping and supports discrimination between upstream and downstream protective devices.

With a 125 A rated current, 300 mA residual operating current and 4 pole configuration, the ABB F204BS-125/0.3L is ideal for higher load three phase distribution systems where advanced Type B protection, fire protection and improved continuity of service are required.

Key Advantages

  • Professional 4 pole RCCB for commercial and industrial installations.
  • 125 A rated current for higher load distribution circuits.
  • 300 mA residual current sensitivity for fault protection and fire protection applications.
  • Type B protection for AC, pulsating DC and smooth DC residual currents.
  • Selective delayed High Immunity operation supports improved service continuity.
  • Suitable for installations with drives, inverters, UPS systems and power electronics.

Key Features

  • ABB F200 Type B RCCB series.
  • F204 B S-125/0.3-L model designation.
  • 125 A rated current.
  • 300 mA residual operating current.
  • 4 pole configuration.
  • Type B earth leakage protection.
  • Selective delayed High Immunity operating characteristic.
  • Compact DIN rail mounting design.

Selective Type B Earth Leakage Protection

Residual current circuit breakers monitor the current balance between conductors and disconnect the supply when residual earth leakage current is detected. This helps protect people, equipment and electrical installations against faults caused by insulation failure or leakage to earth.

The ABB F204BS-125/0.3L is designed for applications where smooth DC fault currents may be generated by electronic loads. Its Type B detection and selective delayed characteristic make it suitable for variable frequency drives, rectifiers, UPS systems, inverters and other power electronic equipment.

Typical Applications

  • Variable frequency drive installations.
  • Industrial automation systems.
  • UPS and inverter systems.
  • Renewable energy and power conversion equipment.
  • Higher load commercial distribution boards.
  • Industrial three phase electrical distribution systems.

Technical Specifications

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Product Series ABB F200
Current 125 A
Phase Three Phase
Poles 4-pole
Device Type RCD
Residual Current 300 mA
RCD Type Type B
Manufacturer ABB
Series F200 Type B
Model F204 B S-125/0.3-L
Product ID 2CSF204823R3950
EAN 8012542989509
Product type Residual Current Circuit Breaker (RCCB)
Rated current 125 A
Rated residual operating current 300 mA
Residual current type Type B
Operating characteristic Selective delayed High Immunity
Maximum surge current 5 kA selective version
Number of poles 4
Rated voltage 230/400 V AC
Frequency 50 / 60 Hz
Standards IEC/EN 61008-1, IEC/EN 61008-2-1, IEC/EN 62423
Mounting type DIN rail
Product net width approx. 72 mm
Product net height approx. 85 mm
Product net depth approx. 75 mm
Built-in depth approx. 69 mm
Weight approx. 0.50 kg
HS Code 85363030
Country of Manufacture Germany

Frequently Asked Questions

What is the ABB F204BS-125/0.3L used for?

It provides selective Type B residual current protection for commercial and industrial electrical installations where smooth DC fault currents may occur.

What is the product ID for ABB F204BS-125/0.3L?

The ABB product ID is 2CSF204823R3950.

What residual current sensitivity does this model provide?

This version provides 300 mA residual current sensitivity, commonly used for fault protection and fire protection applications.

What does Type B protection mean?

Type B protection detects AC residual currents, pulsating DC residual currents and smooth DC residual currents, making it suitable for installations with drives, inverters, UPS systems and other power electronic equipment.

What does selective delayed operation mean?

Selective delayed operation helps coordinate protection with downstream devices, reducing nuisance tripping and improving continuity of service in larger electrical installations.

Trusted by Electrical Professionals Worldwide

ABB F200 Type B residual current circuit breakers are trusted by electrical contractors, OEMs and industrial engineers for dependable protection in demanding installations containing modern power electronic equipment.