1. Product Name
Allen Bradley 20JEF3F3K6JNDNNNNN-P16 3-Pole Miniature Circuit Breaker (MCB)
2. Product Introduction
The Allen Bradley 20JEF3F3K6JNDNNNNN-P16 is a 3-pole (3P) thermal-magnetic Miniature Circuit Breaker, rated at 6A to protect three-phase industrial circuits from overloads, short circuits, and electrical hazards.
3. Product Description
The Allen Bradley 20JEF3F3K6JNDNNNNN-P16 is a high-reliability Miniature Circuit Breaker, part of Allen Bradley’s acclaimed 20JEF series engineered for robust circuit protection in three-phase industrial automation systems. As a premium Allen Bradley Miniature Circuit Breaker, it serves as a critical safety component, safeguarding three-phase equipment, wiring, and personnel from electrical faults that could lead to downtime, equipment damage, or safety incidents.
Constructed with a flame-retardant thermoplastic housing and precision-calibrated internal mechanisms, this Allen Bradley Miniature Circuit Breaker delivers exceptional durability in harsh industrial environments—resisting vibration, extreme temperatures (-25°C to 70°C), and chemical exposure common in manufacturing, agricultural processing, and heavy industry. Its core thermal-magnetic tripping mechanism provides dual protection: the thermal element offers inverse-time overload protection (adjustable via current-time characteristics) to handle sustained excess current, while the magnetic element delivers instantaneous tripping (10–20x rated current) to quickly mitigate short-circuit risks.
With a 3-pole (3P) configuration and 6A rated current, the 20JEF3F3K6JNDNNNNN-P16 is optimized for three-phase low-to-medium current circuits, such as those powering small three-phase motors, pump systems, conveyor drives, and three-phase control panels. It supports a maximum voltage rating of 480V AC, compatible with standard industrial three-phase power systems, and features a compact design (180×90×75mm) that fits standard 35mm DIN rail mounting—enabling seamless integration into control cabinets alongside other Allen Bradley automation components.
This Allen Bradley Miniature Circuit Breaker complies with global safety standards including UL 489, IEC 60898-1, and CE, ensuring compliance in international markets. It boasts a breaking capacity of 10kA at 480V AC, providing reliable protection even in high-fault-current scenarios. The breaker includes a manual reset lever with clear on/off visual indicators, allowing operators to quickly identify circuit status and restore power post-tripping. It also integrates advanced arc-quenching technology to suppress electrical arcing during tripping, reducing fire risks and extending component lifespan.
Designed to integrate seamlessly with Allen Bradley’s automation ecosystem, the 20JEF3F3K6JNDNNNNN-P16 works in harmony with ControlLogix PLCs, PowerFlex VFDs, and PanelView HMIs—forming a comprehensive three-phase control and protection system. It supports selective coordination with other protective devices, ensuring only the faulty circuit is isolated during a fault to minimize operational downtime. The breaker’s low power dissipation and high mechanical endurance (10,000 on/off cycles) enhance long-term reliability and cost-effectiveness, making it a preferred choice for critical three-phase industrial applications.
4. Product Model
Allen Bradley 20JEF3F3K6JNDNNNNN-P16
5. Product Advantages
www.wheat-auto.com (Changzhou Wheat Automation Technology Co., Ltd.) specializes in industrial automation components distribution and precision sensor manufacturing, with a focus on agricultural processing, manufacturing, and logistics sectors. Adding the Allen Bradley 20JEF3F3K6JNDNNNNN-P16 strengthens its circuit protection portfolio, complementing existing offerings (e.g., HMIs, sensors) to deliver integrated three-phase control and protection solutions. As a one-stop automation supplier, the company caters to clients needing end-to-end three-phase systems—where this Allen Bradley Miniature Circuit Breaker protects circuits powering three-phase equipment like grain conveyors, small motors, and three-phase control panels. This aligns with core client pain points: agricultural processing plants and manufacturing facilities require reliable three-phase circuit protection for critical equipment, while logistics hubs need compatible protective devices for their automated three-phase systems. By offering genuine Allen Bradley Miniature Circuit Breakers, www.wheat-auto.com reinforces its position as a comprehensive supplier, allowing clients to source both control and protection components from a single trusted partner. This strategic expansion aligns with its mission to enhance operational safety and efficiency across target sectors, leveraging Allen Bradley’s reputation for industrial-grade reliability. 7. Application Scenarios
Allen Bradley 20JEF3F3K6JNDNNNNN-P16 3P 6A Miniature Circuit Breaker
+86 0519 88188561 
+86 159 5121 9765 
info@wheat-auto.com