TMAX T5N630 ABB Bailey Analog Input Module
Brand：ABB Model number：TMAX T5N630
Country of origin: Sweden Product weight：0.55KG
HS code：8517623990
Product Details：
Product Dimensions：
The designation T5N 630 breaks down the product as follows:
T5: Indicates the frame size of the MCCB, a mid-range size within the Tmax family.
N: Denotes the Normal short-circuit breaking performance level.
630: Specifies the maximum Rated Current ($I_n$) of the circuit breaker, which is $630 \text{ A}$.
The T5N 630 is typically supplied as a Fixed type circuit breaker with Front Terminals for easy wiring installation and connection. It is available in both three-pole and four-pole versions for use in three-phase or three-phase plus neutral systems.
Protection is typically provided by either an advanced Electronic Trip Unit (e.g., PR221DS-LS/I, PR222MP) or a simpler Thermal-Magnetic Trip Unit (e.g., TMA). The electronic release options allow for adjustable protection settings, including long-time (overload), short-time (short circuit with delay), and instantaneous (high-level short circuit) functions.
Product Type: Moulded Case Circuit Breaker (MCCB)
Frame Size: T5
Performance Level: N (Normal breaking capacity)
Rated Current ($I_n$): $630 \text{ A}$
Number of Poles: Available as 3-pole or 4-pole
Rated Operational Voltage ($U_e$): Typically up to $690 \text{ V AC}$
Rated Insulation Voltage ($U_i$): $1000 \text{ V}$
Rated Impulse Withstand Voltage ($U_{imp}$): $8 \text{ kV}$
Rated Ultimate Short-Circuit Breaking Capacity ($I_{cu}$): $36 \text{ kA}$ at $400 \text{ V AC}$ (Note: Varies with voltage, typically $70 \text{ kA}$ at $220 \text{ V AC}$ and $20 \text{ kA}$ at $690 \text{ V AC}$)
Mounting Type: Fixed (F)
Terminal Connection: Front Terminals (F)
Standards Compliance: IEC 60947-2
Dimensions: Approximately $205 \text{ mm (H)} \times 140 \text{ mm (W)} \times 103.5 \text{ mm (D)}$ (3-pole version)
High Breaking Capacity: The 'N' version offers a substantial short-circuit breaking capacity ($I_{cu}$), ensuring the protection of downstream components and the safety of the electrical installation under fault conditions.
Current Limiting Design: Tmax MCCBs are engineered to be current-limiting, which means they interrupt a short circuit quickly enough to significantly reduce the peak current and the specific let-through energy ($I^2t$), thereby minimizing damage to cables and equipment.
Advanced Protection Flexibility: When equipped with an electronic trip unit, the T5N 630 offers highly customizable and precise protection settings (L-S-I, etc.) to optimize selectivity and coordination within the power distribution system.
Double Insulation and Safety: ABB Tmax breakers feature double insulation between the live power parts and the front of the device, increasing safety for operators during normal use.
Compact Size: The T5 frame size maintains a relatively compact footprint for its current rating, optimizing space utilization within switchboards and panels.
Trip Unit Calibration: If using an electronic trip unit, ensure it is correctly programmed and tested to match the specific application requirements, cable sizes, and coordination scheme.
Torque Specifications: Always tighten the terminal screws to the manufacturer-specified torque values. Improper torquing can lead to loose connections, excessive heat, and potential failure.
Accessory Compatibility: Only use genuine ABB accessories (like auxiliary contacts, shunt trips, or motor operators) that are explicitly rated and approved for the T5 frame size.
Installation Environment: The breaker must be installed within a suitable panel or enclosure that provides the necessary IP rating to protect it from dust, moisture, and environmental contaminants, as required by local codes.
DC Applications: While the T5N 630 is rated for both AC and DC, specific de-rating and wiring rules (e.g., poles in series) apply to DC circuits, which must be strictly followed.
The ABB TMAX T5N 630 is widely used in high-current applications across various sectors to provide reliable overload and short-circuit protection.
Main Distribution Panels: Used as the main incoming breaker or as major distribution feeders in large commercial buildings, industrial plants, and utility substations.
Sub-Distribution Boards: Protecting heavy loads or complex sub-circuits, such as large motor control centers (MCCs) or groups of machinery.
Motor Protection: Utilizing specific motor protection trip units to safeguard high-horsepower three-phase motors.
Switchgear Assemblies: Incorporated into switchgear for reliable power distribution and sectionalizing within a facility's electrical network.
Infrastructure: Used in demanding environments like hospitals, airports, and data centers where high performance and continuous operation are critical.
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