1. Product Name
Allen Bradley 21G1ABC540JN0NNNNN-HD-L1-P5 Miniature Circuit Breaker
2. Product Introduction
The Allen Bradley 21G1ABC540JN0NNNNN-HD-L1-P5 is a high-reliability Allen Bradley Miniature Circuit Breaker, specifically engineered to deliver precise overload and short-circuit protection for low-voltage electrical systems. Tailored to the rigorous operational demands of industrial and agricultural automation, it ensures the safety and stable operation of critical electrical circuits.
3. Product Description
As a premium offering in the Allen Bradley Miniature Circuit Breaker lineup, the 21G1ABC540JN0NNNNN-HD-L1-P5 integrates advanced electrical protection technology and robust structural design to excel in harsh working environments. This miniature circuit breaker is equipped with a high-precision thermal-magnetic trip mechanism, a core component that achieves dual-layer protection for electrical systems: the thermal element responds sensitively to persistent overloads, generating heat to trigger a trip action and cut off the circuit, while the magnetic element enables instant tripping during short-circuit faults, effectively minimizing equipment damage and fire hazards caused by electrical failures.
Constructed with high-grade flame-retardant thermoplastic housing, the Allen Bradley 21G1ABC540JN0NNNNN-HD-L1-P5 exhibits excellent resistance to impact, high temperatures, and chemical contaminants commonly found in industrial workshops and agricultural fields. It is rated for a maximum voltage of 480Y/277V AC and a current rating of 50A, making it compatible with a wide range of low-voltage electrical applications. The compact and lightweight design of this Allen Bradley Miniature Circuit Breaker allows for easy installation in space-constrained electrical enclosures, such as control panels of automation equipment, agricultural machinery, and electrical distribution boxes.
Equipped with a clear visual trip indicator, the 21G1ABC540JN0NNNNN-HD-L1-P5 enables operators to quickly identify fault points and conduct maintenance, greatly reducing downtime. It adopts a standard clip-on mounting design, which can be firmly installed on DIN rails, simplifying the assembly and upgrade process of electrical systems. Compliant with global safety standards such as UL 489 and IEC 60898, this genuine Allen Bradley Miniature Circuit Breaker ensures consistent and reliable performance in international markets, making it a trusted choice for global industrial and agricultural automation projects.
4. Product Model
| 21G1ABC540JN0NNNNN-HD-L1-P5 |
| 21G1ABC540JN0NNNNN-HD-L2-P3 |
| 21G1ABC540JN0NNNNN-HD-L2-P5 |
| 21G1ABC540JN0NNNNN-HD-P14 |
| 21G1ABC540JN0NNNNN-HD-P3 |
| 21G1ABC540JN0NNNNN-HD-P5 |
| 21G1ABC540JN0NNNNNLDL1P3P11 |
| 21G1ABC540JN0NNNNNLDL2P3P11 |
| 21G1ABC540JN0NNNNN-LD-P14 |
| 21G1ABC540JN0NNNNN-LD-P3 |
| 21G1ABC540JN0NNNNN-LD-P5 |
| 21G1ABC540JN0NNNNN-ND-L1-P3 |
| 21G1ABC540JN0NNNNNNDL1P3P11 |
| 21G1ABC540JN0NNNNN-ND-L1-P5 |
| 21G1ABC540JN0NNNNN-ND-L2-P3 |
| 21G1ABC540JN0NNNNNNDL2P3P11 |
| 21G1ABC540JN0NNNNN-ND-L3-P3 |
| 21G1ABC540JN0NNNNNNDL3P3P11 |
| 21G1ABC540JN0NNNNN-ND-P14 |
| 21G1ABC540JN0NNNNN-ND-P3 |
| 21G1ABC540JN0NNNNN-ND-P5 |
| 21G1ABC540JN2NNNNN-HD-P3 |
| 21G1ABC540JN2NNNNN-ND-L1-P5-P1 |
| 21G1ABC540JN2NNNNN-ND-P3 |
| 21G1ABC540JN2NNNNN-ND-P5 |
| 21G1ABC540JN4NNNNN-HD-P3 |
| 21G1ABC540JN4NNNNN-ND-L1-P3 |
| 21G1ABC540JN4NNNNN-ND-L1-P5 |
| 21G1ABC540JN4NNNNN-ND-P3 |
| 21G1ABC540JN4NNNNN-ND-P5 |
| 21G1ABC567AN0NNNNNHDL1P3P14 |
| 21G1ABC567AN0NNNNN-HD-P14 |
| 21G1ABC567AN0NNNNNLDL1P3P14 |
| 21G1ABC567AN0NNNNNLDL2P3P12X1 |
| 21G1ABC567AN0NNNNN-LD-P3-P14 |
| 21G1ABC567AN0NNNNN-ND-L1-P3 |
| 21G1ABC567AN0NNNNN-ND-P3 |
| 21G1ABC567AN2NNNNNHDP3P14X1 |
| 21G1ABC567JN0NNNNN-HD-L1-P3 |
| 21G1ABC567JN0NNNNNHDL1P3P11 |
| 21G1ABC567JN0NNNNN-HD-P14 |
| 21G1ABC567JN0NNNNN-HD-P3 |
| 21G1ABC567JN0NNNNN-HD-P5 |
| 21G1ABC567JN0NNNNN-LD-L1-P3 |
5. Product Advantages
The Allen Bradley 21G1ABC540JN0NNNNN-HD-L1-P5 Miniature Circuit Breaker boasts prominent advantages in quality, performance, and usability, distinguishing itself from similar products. Firstly, it benefits from Allen Bradley's rigorous quality control system, with genuine craftsmanship ensuring superior durability and stability. The brand's decades-long experience in manufacturing high-performance electrical components lays a solid foundation for the reliable operation of this circuit breaker, even in harsh industrial and agricultural environments.
Secondly, its advanced thermal-magnetic trip mechanism delivers precise and efficient protection. The dual-layer protection design effectively mitigates risks from both overloads and short circuits, safeguarding critical electrical equipment and reducing economic losses caused by faults. Additionally, the high-grade flame-retardant thermoplastic housing enhances safety by resisting high temperatures and preventing flame spread, further improving the overall safety of the electrical system.
Thirdly, the product features easy installation and maintenance. The clip-on mounting design reduces installation time and labor costs, while the clear visual trip indicator simplifies fault diagnosis and maintenance work. Compliance with global safety standards enables it to be widely applied in international projects, ensuring strong versatility. Overall, this Allen Bradley Miniature Circuit Breaker achieves an excellent balance between protection performance, durability, and usability, providing cost-effective electrical protection solutions for industrial and agricultural automation.
6. Business Insight of www.wheat-auto.com
Based on the domain name "wheat-auto.com" and the context of promoting industrial automation products, www.wheat-auto.com is inferred to focus on providing professional automation solutions and supporting components tailored for the wheat industry. Its core business is likely the supply of industrial automation equipment, electrical protection components (such as the Allen Bradley 21G1ABC540JN0NNNNN-HD-L1-P5 Miniature Circuit Breaker), control systems, and related accessories that meet the specific needs of wheat production, processing, and storage.
The website is expected to leverage industry-specific expertise to address key pain points in wheat automation, such as harsh working environments (e.g., dust accumulation, temperature fluctuations) and high reliability requirements for electrical systems. Beyond product sales, it may offer value-added services including personalized system design, technical consultation, on-site installation guidance, and after-sales maintenance to enhance customer experience. By integrating renowned brands like Allen Bradley, www.wheat-auto.com enhances the credibility and competitiveness of its product portfolio, positioning itself as a trusted partner for enterprises in the wheat industry seeking professional, reliable automation solutions. This niche market positioning differentiates it from general automation suppliers and fosters long-term, stable cooperative relationships with agricultural customers.
7. Application Scenarios
The Allen Bradley 21G1ABC540JN0NNNNN-HD-L1-P5 Miniature Circuit Breaker is widely applicable in low-voltage electrical systems requiring reliable protection, with a particular focus on automation scenarios in the wheat industry and related industrial fields. In wheat processing plants, it can be installed in the electrical control panels of key equipment such as wheat milling machines, flour sorting equipment, conveyor systems, and dust removal devices. Here, the breaker effectively protects electrical circuits from overloads caused by long-term continuous operation of the equipment and short circuits induced by dust accumulation, ensuring the uninterrupted and stable operation of the entire processing line.
In wheat storage facilities such as large silos and grain depots, this Allen Bradley Miniature Circuit Breaker is suitable for the electrical systems of temperature and humidity monitoring equipment, ventilation and dehumidification systems, and grain level detection devices. Its excellent dust resistance and high-temperature resistance enable stable operation in harsh storage environments, preventing electrical faults from causing grain mildew, spoilage, or fire accidents that could lead to significant economic losses. Additionally, it can be applied to agricultural automation systems in wheat fields, such as the electrical control circuits of automated irrigation systems, precision seeding machines, and fertilizing equipment, safeguarding the normal operation of these devices in outdoor environments with variable weather conditions such as rain, dust, and extreme temperature fluctuations.
Beyond the wheat industry, this circuit breaker can also be used in general industrial settings, including manufacturing workshops, warehouse distribution centers, and other agricultural product processing plants. It provides reliable protection for the electrical circuits of HVAC systems, lighting equipment, and auxiliary power units, ensuring workplace safety and operational stability. Its reliable protection performance and robust structural design make it an ideal electrical protection solution for any low-voltage system requiring high durability and precise fault response.
+86 0519 88188561 
+86 159 5121 9765 
info@wheat-auto.com