✅ ABB Emax E4.2 Fixed Part – 4000A or Version V – 4P – Withdrawable HR/HR – (Part No.: 1SDA073916R1) The ABB 1SDA073916R1 is the fixed part of a withdrawable breaker setup for the Emax E4.2 4-pole air circuit breaker series. This base supports a rated operational current of 4000A and is compatible with the V version of the E4.2 breaker, providing installation flexibility. It includes high-reliability HR/HR terminals designed for rugged environments where consistent electrical contact and operational reliability are critical. The unit is ideal for large-scale distribution systems, critical facilities, or industrial switchgear requiring quick breaker interchangeability. Technical Specifications: Part Number: 1SDA073916R1 Model: E4.2 W FP Rated Current (Iu): 4000A or Version V Poles: 4P Contact Type: HR/HR (High-Reliability) Compatibility: ABB Emax E4.2 withdrawable circuit breakers Mounting Type: Fixed base, panel/switchboard integration Use Case: High-power systems, industrial networks, modular ACB panels