Technical Parameters
Parameter Description / Value
Product Series / Family Tmax XT (incorporating T6 Series)
Breaker Type Molded Case Circuit Breaker (MCCB)
Frame Size / Rated Current (In) 630 A (Maximum current rating for this physical frame).
Rated Operational Voltage (Ue) Up to 690 V AC
Number of Poles Typically 3 Poles as standard.
Breaking Capacity Category Not Specified. Must be defined by a suffix (L, S, H, V).
• L (Low): ~35kA
• S (Standard): ~50kA
• H (High): ~70kA @ 415V AC
• V (Very High): ~100kA @ 415V AC
(Values are frame-dependent and illustrative; confirm with official data for specific voltage).
Trip Unit Type Not Specified. Common options:
• A: Fixed Thermal-Magnetic (non-adjustable, standard curve).
• P: Adjustable Thermal-Magnetic.
• E / PR221/PR222: Electronic Trip Unit (with adjustable L, S, I, G functions).
Protection Functions (if Thermal-Magnetic 'A') Thermal (inverse-time) overload and Magnetic (instantaneous) short-circuit protection.
Standard IEC 60947-2
Electrical Durability Typically 6,000 - 8,000 operations at rated current.
Common Accessories Auxiliary contacts (OF/SD), shunt trip (SOR), undervoltage release (UVR), rotary handle (FHH), padlock kits, door interlocks.
The ABB T6-630 is a Frame Size 630 Ampere, Thermal-Magnetic Molded Case Circuit Breaker (MCCB) from ABB's Tmax XT series (which incorporates the legacy T6 series). It is a robust, three-pole circuit breaker engineered for primary feeder protection, main distribution, and safeguarding large industrial loads up to 630A.