Why Choose the ABB 1SDA125229R1?
The ABB 1SDA125229R1 is an Emax 3 E6.3V 5000 Ekip Aware LI 4p FHR air circuit breaker designed for high-current protection and switching in demanding low-voltage power distribution systems. With a rated continuous current of 5000 A, this four-pole fixed circuit breaker provides robust protection for main distribution and high-capacity electrical installations.
Equipped with an Ekip Aware LI electronic protection unit, the 1SDA125229R1 provides long-time and instantaneous overcurrent protection with adjustable protection settings. Its Emax 3 platform is suited to applications where dependable circuit protection, operational continuity and integration into modern power distribution systems are required.
The fixed FHR configuration provides a practical solution for switchboards and power distribution assemblies requiring high-capacity circuit protection. With a 690 V rated operational voltage and up to 150 kA ultimate short-circuit breaking capacity at 400 V, the ABB 1SDA125229R1 is engineered for demanding electrical distribution environments.
Key Advantages
- 5000 A rated current: Suitable for high-capacity power distribution and main incomer applications.
- Ekip Aware LI protection: Provides adjustable long-time and instantaneous overcurrent protection.
- Four-pole configuration: Provides switching and protection across four poles for comprehensive circuit management.
- High short-circuit capability: Offers up to 150 kA ultimate short-circuit breaking capacity at 400 V.
- Fixed FHR configuration: Provides a practical installation format for compatible switchboards and distribution assemblies.
- Emax 3 platform: Part of ABB's high-capacity air circuit breaker range for demanding low-voltage installations.
- Adjustable protection ranges: Long-time and instantaneous protection settings can be configured to suit the electrical installation.
Key Features
- ABB Emax 3 E6.3V series air circuit breaker
- Order code: 1SDA125229R1
- Ekip Aware LI electronic protection unit
- 5000 A rated continuous current
- Four-pole construction
- Fixed FHR configuration
- 690 V rated operational voltage
- 150 kA ultimate short-circuit breaking capacity at 400 V
- Adjustable long-time protection range of 2000–5000 A
- Adjustable instantaneous short-circuit protection range of 7500–75000 A
- Rear main-circuit connection arrangement
- Integrated trip contact
- Motor operator available as an option
- IP30 protection rating
High-Capacity Power Distribution Protection
The ABB 1SDA125229R1 is designed for high-current electrical distribution systems where dependable protection and switching are essential. Its E6.3V 5000 frame size and 5000 A rated current make it suitable for high-capacity main distribution applications, while the Ekip Aware LI protection unit provides configurable long-time and instantaneous overcurrent protection. The four-pole design supports comprehensive circuit isolation and protection, making this Emax 3 air circuit breaker suitable for industrial switchboards, commercial power distribution and other demanding low-voltage installations.
Typical Applications
- Main incomer protection in high-capacity switchboards
- Industrial power distribution systems
- Large commercial electrical distribution installations
- High-current feeder protection
- Power distribution and energy infrastructure
- Generator and transformer distribution systems
- Industrial control and electrical equipment assemblies
- Low-voltage main distribution boards
