Description

Product Overview

The ABB 1SDA053999R1 is a Tmax T4N 250A 3P molded case circuit breaker (MCCB) designed for industrial and commercial power distribution systems. As part of ABB’s Tmax XT series, this breaker combines high-performance protection with advanced control capabilities, making it ideal for applications requiring reliable overload and short-circuit protection. The 1SDA053999R1 features a PR221DS-LS/I electronic trip unit, which offers adjustable protection settings for precise coordination with downstream equipment. Its modular design allows seamless integration into ABB’s low-voltage switchgear, supporting safe and efficient power management in diverse industrial environments.

Rated at 250A with a 36kA short-circuit breaking capacity, the 1SDA053999R1 ensures robust fault current interruption. The breaker’s fixed mounting configuration and front-terminal connections simplify installation in compact control panels, while its IP20-rated enclosure provides protection against dust and solid objects. Compatible with ABB’s Ekip Touch digital interface, the 1SDA053999R1 enables real-time monitoring of electrical parameters (e.g., current, voltage) and remote control via industrial networks. This integration enhances system visibility and reduces maintenance downtime, aligning with ABB’s commitment to smart grid and Industry 4.0 initiatives.

In summary, the ABB 1SDA053999R1 serves as a critical component in modern power distribution systems, delivering reliable protection, advanced diagnostics, and scalability for applications ranging from manufacturing plants to data centers. Its compliance with IEC 60947-2 standards and RoHS/WEEE certifications further underscores its suitability for global industrial and commercial use.

Technical Specifications

Parameter	Value
Product Model	ABB 1SDA053999R1
Manufacturer	ABB
Product Type	Molded Case Circuit Breaker (MCCB)
Rated Current	250 A
Rated Voltage	400 V AC (50/60 Hz)
Short-Circuit Breaking Capacity	36 kA (Icu)
Trip Unit Type	PR221DS-LS/I (electronic, adjustable)
Poles	3
Mounting Type	Fixed (DIN rail or panel mounting)
Terminals	Front-connected (screw-type)
Enclosure Rating	IP20
Operating Temperature	-5°C to +60°C
Weight	2.2 kg
Certifications	CE, IEC 60947-2, RoHS/WEEE compliant

Key Features and Advantages

Precision Protection: The PR221DS-LS/I trip unit offers adjustable long-time (LS) and short-time (I) protection curves, enabling tailored responses to overloads and short circuits. This flexibility ensures optimal coordination with downstream devices, minimizing downtime and equipment damage.

Modular Design: The 1SDA053999R1 supports easy integration with ABB’s Tmax XT accessories, such as auxiliary contacts, shunt trip coils, and communication modules. This modularity allows users to customize the breaker for specific applications, enhancing system functionality without replacing the entire unit.

Digital Connectivity: With compatibility with Ekip Touch and Profibus DP, the 1SDA053999R1 enables remote monitoring and control via industrial automation systems. Real-time data on current, voltage, and energy consumption empowers predictive maintenance and reduces operational costs.

Rugged Reliability: The IP20-rated enclosure and high-temperature resistance (-5°C to +60°C) make the breaker suitable for harsh industrial environments. Its mechanical durability (up to 10,000 operations) ensures long-term performance in demanding applications.

Space Efficiency: The T4N frame size and compact design optimize panel space, allowing more circuits to be accommodated in limited cabinet areas. This is particularly beneficial in data centers and commercial buildings where space is at a premium.

Application Areas

The ABB 1SDA053999R1 is widely used in industries requiring reliable power distribution and protection:

Manufacturing: Protecting motor control centers, conveyor systems, and HVAC equipment in factories. The breaker’s adjustable trip settings ensure safe operation under varying load conditions.
Data Centers: Ensuring continuous power supply to critical IT infrastructure by providing fault isolation and real-time monitoring. The 1SDA053999R1’s compact design supports high-density rack-mounted power distribution units (PDUs).
Commercial Buildings: Safeguarding lighting, elevators, and emergency power systems in offices and shopping centers. Its modular accessories enable integration with building automation systems for energy management.
Renewable Energy: Protecting inverters and battery storage systems in solar and wind farms. The breaker’s high short-circuit capacity ensures robust fault protection in DC applications.
Oil & Gas: Controlling power distribution in offshore platforms and refineries. The 1SDA053999R1’s resistance to extreme temperatures and corrosive environments makes it suitable for harsh offshore conditions.

Installation and Maintenance

Installation Preparation:

Verify the 1SDA053999R1’s compatibility with the panel’s busbar system and wiring requirements. Ensure proper grounding and torque tightening of terminal connections.
Mount the breaker on a 35 mm DIN rail or directly on the panel using the provided mounting holes.
Connect the PR221DS-LS/I trip unit to the breaker’s control terminals, ensuring correct wiring for auxiliary contacts and communication modules.

Maintenance Recommendations:

Visual Inspection: Regularly check for signs of physical damage, loose connections, or thermal discoloration. Clean dust and debris from the enclosure to maintain optimal cooling.
Trip Unit Calibration: Periodically verify the trip settings using ABB’s Relion® 670 test equipment to ensure accurate protection.
Contact Wear Check: Inspect the main contacts for pitting or erosion. Replace worn contacts to maintain reliable performance.
Firmware Updates: Update the trip unit’s firmware via ABB’s Automation Builder software to access new features and security patches.
Environmental Checks: Monitor ambient temperature and humidity to ensure they remain within the specified range (-5°C to +60°C). Avoid exposing the breaker to corrosive gases or liquids.

Product Warranty and Support

The ABB 1SDA053999R1 is backed by a 1-year warranty covering defects in materials and workmanship. ABB’s global support network provides 24/7 technical assistance, including remote diagnostics and on-site service by certified technicians. Customers can access detailed product documentation, firmware updates, and safety guidelines through ABB’s online portal.

For mission-critical applications, optional extended warranties are available, offering priority service and replacement modules to minimize downtime. ABB also provides training on Tmax XT series operation and maintenance, ensuring customers maximize the 1SDA053999R1’s capabilities.

Brand Model: ABB 1SDA053999R1
Product Name: Tmax T4N 250 PR221DS-LS/I 3P MCCB
Warranty: 1 year
Size: 186 mm (W) × 104.5 mm (H) × 170 mm (D)
Weight: 2.2 kg
Origin: Sweden
Inventory: Spot
Delivery Time: Goods in stock will be dispatched within 3 days after payment
Order Time: Goods will be dispatched within one month after payment

Contact info

WhatsApp: +86 18030182217
Email: sandydcsplc@gmail.com
Phone: +86 18030182217
Wechat: +86 18030182217
Website: www.xiongbaparts.com

ABB 1SDA053999R1 Molded Case Circuit Breaker (MCCB) (XIONGBA)