Technical Parameters
Parameter Description / Value
Product Series / Family Tmax XT (incorporating T6 Series)
Breaker Type Molded Case Circuit Breaker (MCCB), Fixed Version
Frame Size 800A
Rated Current (In) 800 A (This is the maximum breaker rating for this frame).
Rated Operational Voltage (Ue) Up to 690 V AC
Poles 3 Poles (3P) - Standard configuration for the "A" version.
Breaking Capacity Category Critical Note: The code "T6-800A" is incomplete. It must be followed by a letter specifying its short-circuit rating (e.g., L, S, H, V). Common versions for T6 frame include T6H800A (High) or T6V800A (Very High).
Typical Ultimate Breaking Capacity (Icu) Entirely dependent on the missing breaking capacity letter:
• Example for T6H800A: ~100 kA @ 415V AC (High).
• Example for T6V800A: ~150 kA @ 415V AC (Very High).
(These are illustrative values; exact data must be verified.)
Typical Service Breaking Capacity (Ics) Varies by category (e.g., 75% of Icu for H, 100% of Icu for V).
Trip Unit Type Fixed Thermal-Magnetic (A).
Protection Functions Thermal (L) - Inverse-time overload protection.
Magnetic (I) - Instantaneous short-circuit protection.
Standard IEC 60947-2
Electrical Durability Typically 5,000 - 7,000 operations at rated current.
Common Accessories Auxiliary contacts (OF/SD), shunt trip (MN), undervoltage release (MX), rotary handle (FHH), padlock attachments, door interlocks.
The ABB T6-800A is a Thermal-Magnetic Molded Case Circuit Breaker (MCCB) from ABB's Tmax XT series (incorporating the legacy T6 series). It is a robust, three-pole circuit breaker designed for main distribution and heavy-duty branch circuit protection in industrial plants, large commercial buildings, and infrastructure applications.