Parameter Category Specification
General
• Type Air Circuit Breaker (ACB), Fixed or Draw-out version (code doesn't specify; F or W needed).
• Standard IEC 60947-2, UL 489
Ratings
• Rated Operational Current (In) 2500 A
• Rated Operational Voltage (Ue) 690 V AC
• Rated Insulation Voltage (Ui) 1000 V AC
• Rated Ultimate Short-Circuit Breaking Capacity (Icu) 100 kA at 400V AC (for S version). At 690V, this is lower (e.g., 75 kA).
• Rated Service Short-Circuit Breaking Capacity (Ics) Typically a high percentage of Icu (e.g., 75% or 100%).
Trip Unit (PR122/P)
• Protection Settings
L (Ir): 0.4 - 1.0 x In (1000A - 2500A)
S (Isd): 1.5 - 15 x Ir, time delay adjustable (e.g., 0.05 - 0.5s) or I²t.
I (Ii): 1.5 - 15 x In or OFF.
• Measurement High-accuracy measurement of I, V, P, Q, S, PF, f, Energy (kWh, kVARh). Class 1.
• Communication Standard RS485 port with Modbus RTU. Optional modules for Profibus, DeviceNet, Ethernet/IP, IEC 61850.
• Event Logging Stores time-stamped trips, alarms, and operations.
• Diagnostics Load profile, thermal memory, maintenance alerts.
Mechanical
• Operating Mechanism Spring-operated stored energy. Manual or electrical charging. Manual or electrical closing.
• Mechanical Life ≥ 30,000 operations
• Electrical Life ≥ 10,000 operations at full load
Typical Included Accessories (This code lists only trip unit; accessories are separate codes like FHR NST). A typical functional unit would include: Electric motor, Shunt trip (MX), Auxiliary contacts (OF/SD), Undervoltage release (MN).
Dimensions & Weight (Approx. for 3P Fixed) Width: ~ 350-450 mm, Height: ~ 550-650 mm, Depth: ~ 400-500 mm. Weight: ~ 150-200 kg.
