Technical Specifications Parameter Category Specification Product Line / Series ABB SACE Emax (E4 Frame) Device Type Fixed-Mounted Air Circuit Breaker (ACB) Model Code Breakdown L = Fixed Thermal-Magnetic Trip Unit (TMD) 40 = E4 Frame Size Code 25 = Rated Current (In) = 2500 A H = Breaking Capacity = High (Typically 70 kA Icu at 400V AC) Standard Compliance IEC 60947-2, UL 489 Rated Operational Voltage (Ue) 690 V AC Rated Insulation Voltage (Ui) 1000 V AC Rated Ultimate Short-Circuit Breaking Capacity (Icu) 70 kA at 400V AC (for "H" version). At 690V AC, this rating is lower (e.g., 50 kA). Rated Service Short-Circuit Breaking Capacity (Ics) Typically 100% of Icu (e.g., 70 kA) for category Ics = Icu. Rated Operating Current (In) 2500 A (Continuous, at 40°C ambient). Trip Unit Type Fixed Thermal-Magnetic (TMD/LI - "L" in model) • Long-Time Protection (L) Fixed inverse-time thermal tripping characteristic. Threshold is preset to the breaker's rated current (2500A). • Short-Time Protection (S) Not adjustable (fixed magnetic trip). The "I" in LI indicates an Instantaneous-only magnetic trip for high-level short-circuits. No adjustable short-time delay. • Instantaneous Protection (I) Fixed threshold, typically at a high multiple of In (e.g., ~10xIn). • Ground-Fault Protection Not included in standard L version. Control & Accessories • Standard Operating Mechanism Manual charge spring (stored energy), with manual ON/OFF handle. Can be equipped with an electric motor for remote electrical closing (common option). • Shunt Trip (MX) Optional, for remote electrical tripping. • Undervoltage Release (MN) Optional, for automatic tripping on loss of control voltage. • Auxiliary Contacts (OF/SD) Optional, for signaling breaker status (ON/OFF/Tripped). Mechanical & Electrical Life • Mechanical Endurance ≥ 20,000 operations • Electrical Endurance ≥ 5,000 operations at full rated current Mounting Fixed installation in switchgear compartments. It is not draw-out. Connection Front or rear horizontal/vertical power connections for busbars or large cables. Poles 3-Pole or 4-Pole versions available (model code may differ for 4P). Dimensions (Approx. for 3P) Width: ~ 300-400 mm, Height: ~ 400-500 mm, Depth: ~ 300-400 mm (Varies). Weight (Approx.) ~ 80 - 120 kg Ambient Temperature Operating: -5°C to +40°C (Derating above 40°C applies)