1SDA128403R1 ABB Ekip Aware LI E2.3–E6.3 BLEoff-disabled

Why Choose the ABB 1SDA128403R1 Ekip Aware LI Trip Unit?

The ABB 1SDA128403R1, product designation Ekip Aware LI E2.3..E6.3 BLEoff-disabled, is an electronic protection trip unit for the ABB SACE Emax 3 air circuit-breaker platform. Designed for compatible E2.3 through E6.3 circuit breakers, it provides LI protection functions for dependable management of overload and high-current short-circuit conditions in low-voltage power-distribution systems.

The Ekip Aware LI configuration combines long-time (L) protection against sustained overload conditions with instantaneous (I) protection for rapid response to severe short-circuit currents. This protection combination is suitable for installations where straightforward phase overcurrent protection is required without the additional short-time or earth-fault functions associated with LSI or LSIG configurations.

This specific 1SDA128403R1 version is designated by ABB as BLEoff-disabled, indicating a configuration in which Bluetooth Low Energy functionality is disabled. It is intended for Emax 3 E2.3 through E6.3 applications where the Ekip Aware protection platform is required with LI protection and without active BLE functionality.

Key Advantages

• Genuine ABB SACE Emax 3 Ekip Aware electronic trip unit.
• Compatible with E2.3 through E6.3 Emax 3 circuit-breaker frames.
• Long-time (L) protection provides protection against sustained overload conditions.
• Instantaneous (I) protection provides rapid response to severe short-circuit currents.
• LI configuration provides focused phase overcurrent protection without unnecessary additional protection functions.
• BLE functionality disabled for applications requiring this specific communication configuration.
• Integrates with ABB's advanced Emax 3 electronic protection architecture.
• Suitable for industrial, infrastructure and critical low-voltage distribution systems.

Key Features

• ABB Ekip Aware electronic trip-unit platform.
• LI protection configuration.
• L – long-time overload protection.
• I – instantaneous short-circuit protection.
• Designed for ABB SACE Emax 3 air circuit breakers.
• Compatible with the E2.3–E6.3 frame range.
• Bluetooth Low Energy (BLE) disabled configuration.
• Electronic current monitoring and protection logic.
• Suitable for selective low-voltage distribution protection schemes where LI functionality is specified.
• Designed as part of the modular Emax 3 protection ecosystem.

Electronic LI Protection with Ekip Aware

The LI protection configuration combines two fundamental overcurrent protection functions. Long-time protection monitors sustained current conditions and enables the circuit breaker to respond to overloads, while instantaneous protection is intended to initiate rapid operation when current rises to a severe short-circuit level. Together, these functions provide focused protection for feeders, incomers and other low-voltage distribution circuits.

The ABB 1SDA128403R1 extends this functionality across compatible Emax 3 E2.3 through E6.3 circuit breakers using the Ekip Aware electronic platform. Its BLEoff-disabled designation makes it appropriate where Bluetooth Low Energy functionality is intentionally unavailable while the core electronic LI protection capability is retained.

Typical Applications

• ABB SACE Emax 3 E2.3–E6.3 air circuit breakers.
• Main incoming low-voltage circuit protection.
• Industrial feeder protection.
• Transformer secondary distribution systems.
• Manufacturing and process-industry switchboards.
• Data centres and critical-power distribution.
• Commercial and infrastructure electrical systems.
• Applications requiring LI protection with BLE functionality disabled.