ABB Emax 3 E2.3H 1250 Ekip Aware LI 4-Pole Fixed Air Circuit Breaker – 1SDA125099R1
The ABB 1SDA125099R1 is an Emax 3 E2.3H 1250 air circuit breaker rated at 1250 A, featuring four poles, a fixed installation configuration and horizontal rear terminals. It is equipped with an Ekip Aware LI electronic trip unit for long-time and instantaneous overcurrent protection.
Designed for demanding low-voltage power distribution systems, this ABB SACE Emax 3 circuit breaker provides adjustable protection settings with a long-time current range of I1 500–1250 A and an instantaneous threshold range of I3 1875–18750 A. The Ekip Aware platform also supports advanced electrical monitoring capabilities within compatible installations.
The E2.3H 1250 frame combines a high current rating with high short-circuit performance, making the 1SDA125099R1 suitable for industrial switchboards, main distribution panels and other high-capacity electrical infrastructure where dependable circuit protection is required.
Key Advantages
- 1250 A rated current for high-capacity low-voltage distribution applications
- 4-pole configuration for comprehensive switching and protection of three-phase systems with neutral
- Ekip Aware LI electronic trip unit providing long-time and instantaneous overcurrent protection
- Adjustable long-time protection with I1 settings from 500 to 1250 A
- Adjustable instantaneous protection with I3 settings from 1875 to 18750 A
- Fixed mounting configuration for straightforward installation in compatible switchboards
- Horizontal rear terminals for rear-connected switchboard arrangements
- 100 kA Icu at 440 V AC for high fault-interruption capability
- 85 kA Icw for 1 s at 440 V AC for high short-time withstand capability
- Part of the ABB SACE Emax 3 family of advanced low-voltage air circuit breakers
Key Features
- Manufacturer: ABB
- Series: SACE Emax 3
- Breaker type: E2.3H air circuit breaker
- Rated current: 1250 A
- Number of poles: 4
- Trip unit: Ekip Aware LI
- Protection functions: Long-time and instantaneous overcurrent protection
- Installation: Fixed
- Terminal arrangement: Horizontal rear terminals
- Long-time current setting I1: 500–1250 A
- Instantaneous current setting I3: 1875–18750 A
- Ultimate short-circuit breaking capacity Icu: 100 kA at 440 V AC
- Short-time withstand current Icw: 85 kA for 1 s at 440 V AC
Reliable Protection for Low-Voltage Power Distribution
The ABB Emax 3 E2.3H 1250 Ekip Aware LI provides robust protection for high-capacity low-voltage electrical distribution systems. Its four-pole configuration enables protection and switching across three-phase networks where neutral conductors also require controlled interruption.
With adjustable long-time and instantaneous protection, the 1SDA125099R1 can be configured to suit the requirements of different distribution architectures. Its fixed construction and horizontal rear terminals make it well suited to compatible switchboards and power distribution assemblies requiring a high-current air circuit breaker.
Typical Applications
- Industrial low-voltage distribution systems
- Main and sub-main switchboards
- High-capacity power distribution panels
- Manufacturing and process facilities
- Commercial and industrial electrical infrastructure
- Large electrical distribution boards
- Four-pole three-phase distribution systems
- Applications requiring adjustable LI electronic protection
- Installations requiring high short-circuit interruption capability
