Technical Parameters Parameter Description / Value Product Series / Family Tmax XT (incorporating T5 Series) Breaker Type Molded Case Circuit Breaker (MCCB), Fixed Version Frame Size 630A Rated Current (In) 630 A (This is the maximum breaker rating. The actual fixed trip setting is tied to this frame size.) Rated Operational Voltage (Ue) Up to 690 V AC Poles 3 Poles (3P) - Standard configuration for the "A" version. Breaking Capacity Category Standard (S) or High (H). Crucially, the code "T5-630A" alone does not specify this. It must be further defined (e.g., T5S630A or T5H630A). Typical Ultimate Breaking Capacity (Icu) Must be specified with breaking capacity letter: • For T5S630A: ~50 kA @ 415V AC (Standard). • For T5H630A: ~70 kA @ 415V AC (High). (Always verify with official data.) Typical Service Breaking Capacity (Ics) Varies by category (e.g., 50% or 75% of Icu). Trip Unit Type Fixed Thermal-Magnetic (A). Protection Functions Thermal (L) - Inverse-time overload. Magnetic (I) - Instantaneous short-circuit. Standard IEC 60947-2 Electrical Durability Typically 6,000 - 8,000 operations at rated current. Common Accessories Auxiliary contacts (OF/SD), shunt trip (MN), undervoltage release (MX), rotary handle (FHH), padlock attachments.