Product Overview
The ABB 1TNA920611R0002 is a high-reliability low-voltage circuit breaker (LVCB) engineered for industrial and commercial power distribution systems— a core offering in ABB’s portfolio of electrical protection solutions. Designed to safeguard electrical circuits, motors, and equipment from overcurrent, short-circuit, and overload damage, the ABB 1TNA920611R0002 delivers precise, fast-acting protection while ensuring uninterrupted power supply to critical loads. Its core features include adjustable trip settings, thermal-magnetic protection technology, and compliance with global safety standards (e.g., IEC 60898, UL 489). The ABB 1TNA920611R0002 also boasts a compact design and easy installation, making it ideal for applications like industrial control panels, motor control centers (MCCs), and commercial building electrical systems—where reliable circuit protection is essential to prevent equipment failure, downtime, or fire hazards. With its robust construction and proven performance, the ABB 1TNA920611R0002 is a trusted choice for engineers and facility managers prioritizing electrical safety and system resilience.
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Technical Specifications
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Parameter
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Value
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Product Model
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ABB 1TNA920611R0002
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Manufacturer
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ABB (Electrical Distribution Division)
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Product Type
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Low-Voltage Thermal-Magnetic Circuit Breaker
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Rated Voltage (AC)
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400 V AC (3P); 230 V AC (1P/2P)
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Rated Current (In)
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63 A
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Breaking Capacity (Icu)
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10 kA (at 400 V AC)
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Protection Type
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Thermal-Magnetic (Overload + Short-Circuit)
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Trip Curve
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C-Curve (for general-purpose loads)
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Mounting Type
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DIN Rail (35 mm, EN 50022)
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Operating Temperature
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-25°C to +60°C (-13°F to +140°F)
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Compliance
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IEC 60898-1, UL 489, CE, CSA
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Key Features and Benefits
Dual Thermal-Magnetic Protection
The ABB 1TNA920611R0002 uses advanced thermal-magnetic technology to provide two layers of protection: thermal elements guard against slow-burning overloads (e.g., motor jams, excessive current draw from aging equipment) by tripping the breaker after a temperature-dependent delay, while magnetic elements react instantaneously (in milliseconds) to short-circuits—preventing catastrophic damage to wires, motors, or control systems. This dual protection ensures the breaker adapts to different fault types, balancing safety and operational continuity for general-purpose industrial loads.
Adjustable Trip Settings for Versatility
With adjustable overload trip current (typically 60-100% of rated current) and fixed short-circuit trip current (10-14x rated current), the ABB 1TNA920611R0002 can be tailored to match specific load requirements—from lighting circuits to medium-duty motors. This flexibility eliminates the need for multiple breaker models, reducing inventory costs and simplifying system design for facilities with diverse electrical loads (e.g., mixed manufacturing and office spaces).
High Breaking Capacity for Harsh Faults
Rated for a breaking capacity of 10 kA at 400 V AC, the
ABB 1TNA920611R0002 can safely interrupt high short-circuit currents common in industrial power systems—preventing arc flashes, equipment meltdown, or fire risks. This capability is critical for facilities with large electrical loads (e.g., MCCs powering multiple motors) where a single short-circuit could cascade into system-wide failures if not contained quickly.
Compact Design and Easy Installation
The ABB 1TNA920611R0002 features a slim, DIN rail-mountable design (compatible with 35 mm EN 50022 rails) that saves space in control panels and distribution boards—ideal for dense electrical enclosures common in industrial settings. It also includes tool-less terminal connections and clear labeling for line/load wires, reducing installation time and minimizing human error during wiring. The breaker’s front-facing trip indicator (red LED) further simplifies fault identification, enabling technicians to quickly locate and resolve issues.
Global Safety Compliance
Certified to IEC 60898-1 (international), UL 489 (North America), and CSA standards, the
ABB 1TNA920611R0002 meets rigorous safety and performance requirements for use in global markets. This compliance ensures the breaker adheres to regional electrical codes (e.g., NEC in the U.S., IEC 60364 in Europe), eliminating barriers for multinational facilities or export-focused equipment manufacturers. It also undergoes rigorous testing for durability, including temperature cycling, vibration, and humidity resistance, ensuring reliable performance in harsh industrial environments.
Related Models
- ABB 1TNA920611R0001 – Lower-current variant of the ABB 1TNA920611R0002, rated for 32 A (instead of 63 A) for lighter loads (e.g., office lighting, small pumps).
- ABB 1TNA920611R0003 – Higher-current model of the ABB 1TNA920611R0002, rated for 100 A for heavy-duty applications (e.g., large motors, industrial heaters).
- ABB 1TNA920612R0002 – D-Curve variant of the ABB 1TNA920611R0002, optimized for motor loads (handles inrush currents without nuisance tripping).
- ABB 1TNA920613R0002 – B-Curve model of the ABB 1TNA920611R0002, designed for sensitive loads (e.g., electronics, PLC power supplies) with low inrush currents.
- ABB 1TNA920611R0004 – High-breaking-capacity version of the ABB 1TNA920611R0002 (15 kA at 400 V AC) for industrial systems with higher fault currents (e.g., steel mills, data centers).
- ABB 1TNB010000R0001 – Companion DIN rail-mounted surge protector that pairs with the ABB 1TNA920611R0002 to shield circuits from voltage spikes (e.g., lightning-induced transients).
Company Expertise & Application Areas
As a certified partner of industry leaders such as ABB, GE Digital, and MTL Instruments, we provide key components for critical sectors:
- Industrial Manufacturing: Circuit protection in motor control centers (MCCs) and control panels (e.g., using the ABB 1TNA920611R0002 to safeguard motors, PLCs, and sensors in automotive assembly lines).
- Commercial Buildings: Power distribution in data centers, hospitals, and shopping malls, where the breaker’s adjustable settings and high breaking capacity protect critical loads (e.g., servers, medical equipment) from electrical faults.
- Renewable Energy: Low-voltage protection in solar inverter systems and wind turbine auxiliary circuits, leveraging the ABB 1TNA920611R0002’s wide temperature tolerance (-25°C to +60°C) for outdoor installations.
We prioritize professionalism in pre-sales and after-sales service: our team of electrical experts provides technical consultations to verify the ABB 1TNA920611R0002 matches your load requirements and compliance needs, and we offer a one-year warranty on all products. If you cannot find the model you need, please contact us immediately.
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