Description
ABB TMAX T5N630 Molded case circuit breakers
The ABB SACE Tmax T5N 630 is a high-performance Moulded Case Circuit Breaker (MCCB) designed for reliable protection and isolation in low-voltage electrical distribution systems. It is part of ABB’s robust Tmax T series.
📋 Product Details
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Product Name: Moulded Case Circuit Breaker (MCCB)
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Series: SACE Tmax T
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Sub-type/Frame Size: T5N
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Version/Mounting: Fixed (F) with Front Terminals (F)
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Poles: Typically 3-pole (for three-phase systems), though 4-pole versions may be available.
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Release Type (Example): Often equipped with a Solid-State Release like the PR221DS-LS/I which offers:
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Long-Time delay protection (Overload Protection)
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Short-Time delay protection (Short-circuit protection with delay)
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Instantaneous protection (Immediate high-current short-circuit protection)
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⚙️ Product Parameters (Technical Specifications)
| Parameter | Specification |
| Rated Current ($I_n$) | 630 A |
| Number of Poles | 3 |
| Rated Operational Voltage ($U_e$) | Max 690 V AC (Also rated for DC) |
| Rated Insulation Voltage ($U_i$) | 1000 V |
| Rated Impulse Withstand Voltage ($U_{imp}$) | 8 kV |
| Rated Ultimate Short-Circuit Breaking Capacity ($I_{cu}$) | 36 kA at 380/400/415 V AC (Varies with voltage, e.g., 20 kA at 690 V AC) |
| Rated Service Short-Circuit Breaking Capacity ($I_{cs}$) | Typically equal to $I_{cu}$ for the ‘N’ performance level (e.g., 36 kA at 400 V AC) |
| Mechanical Durability | Approx. 20,000 cycles |
| Electrical Durability | Approx. 5,000 cycles |
| Dimensions (Typical) | Width: 140 mm, Height: 205 mm, Depth: 103.5 mm |
| Standards | IEC 60947-2 |
Note: Specifications can vary based on the exact model code (e.g., trip unit and performance level).
✨ Product Advantages
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High Breaking Capacity: The ‘N’ version offers a high ultimate short-circuit breaking capacity ($I_{cu}$) of up to 36 kA at 400V, ensuring safety under severe fault conditions.
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Advanced Protection: The electronic trip units (like PR221DS) provide precise, adjustable, and reliable protection (L, S, I) for better selectivity and system coordination compared to purely thermal-magnetic units.
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Compact Design: Despite its high current rating (630A), the Tmax T5 frame maintains a relatively small footprint, optimizing panel space.
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Versatility: Suitable for use in AC and DC applications and offers a wide range of accessories for enhanced functionality (e.g., auxiliary contacts, shunt trips, motor operators).
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Ease of Maintenance: The fixed mounting and front terminal connection design allow for straightforward installation, wiring, and maintenance access.
⚠️ Important Notes (Precautions)
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Installation: Installation and commissioning must be carried out by qualified personnel in accordance with the manufacturer’s instructions, local wiring regulations, and safety standards (e.g., IEC/EN standards).
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Coordination: For optimal performance and selectivity in a distribution network, the trip unit settings (L, S, I) must be properly coordinated with the protective devices upstream and downstream.
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Accessories: Only use genuine ABB accessories designed for the Tmax T5 frame to ensure proper fit and performance.
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Torque: Always ensure all terminal connections are tightened to the manufacturer’s specified torque values to prevent loose connections, overheating, and potential failure.
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Inspection: Regular visual inspection and functional testing of the MCCB and its trip unit are recommended to confirm its operational readiness.
🎯 Product Applications
The ABB Tmax T5N 630 MCCB is ideal for demanding power distribution and protection applications in various sectors:
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Industrial Plants: Used as a main breaker or sub-main breaker in main distribution boards (MDBs) and motor control centers (MCCs) to protect large loads and feeders.
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Commercial Buildings: Employed in main and floor distribution panels for high-current loads, HVAC systems, and lighting circuits.
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Infrastructure: Used in utilities, data centers, hospitals, and transportation systems where continuous and reliable power protection is critical.
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Generator Protection: Suitable for use as a breaker for connecting large generators to the network.
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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