Allen Bradley 20JEH3D1K3LNANNNNN-C2-P18-P72 1P+N 3A D-curve MCB

Nov. 17 , 2025

1. Product Name

Allen Bradley 20JEH3D1K3LNANNNNN-C2-P18-P72 1P+N D-Curve Miniature Circuit Breaker (MCB)

2. Product Introduction

The Allen Bradley 20JEH3D1K3LNANNNNN-C2-P18-P72 is a 1P+N (1-pole + neutral) D-curve Miniature Circuit Breaker rated at 3A, providing thermal-magnetic protection for single-phase industrial circuits with neutral conductor safeguarding.

3. Product Description

The Allen Bradley 20JEH3D1K3LNANNNNN-C2-P18-P72 is a high-performance Miniature Circuit Breaker, part of Allen Bradley’s acclaimed 20JE series engineered for precise single-phase circuit protection in industrial and commercial automation. As a premium Allen Bradley Miniature Circuit Breaker, it serves as a critical safety component, shielding single-phase equipment, wiring, and personnel from overloads, short circuits, and neutral conductor faults—common risks in automation systems, control panels, and auxiliary power circuits.

Constructed with flame-retardant UL94 V0 thermoplastic housing and precision-machined internal components, this Allen Bradley Miniature Circuit Breaker delivers exceptional durability in harsh industrial environments. It withstands extreme temperatures (-25°C to 70°C), vibration, and chemical exposure, making it suitable for manufacturing facilities, agricultural processing plants, and logistics hubs. Its core thermal-magnetic tripping mechanism features a D-curve (10–20x rated current) response, optimized for inductive loads: the thermal element provides inverse-time overload protection to handle sustained excess current, while the magnetic element delivers instantaneous tripping for rapid short-circuit mitigation—ideal for motors, transformers, and other loads with high inrush currents.

With a 1P+N configuration and 3A rated current, the 20JEH3D1K3LNANNNNN-C2-P18-P72 is designed for low-current single-phase circuits requiring neutral protection, such as control panel auxiliary power, sensor networks, small single-phase motors, and lighting systems in industrial settings. It supports a maximum voltage rating of 240V AC, compatible with standard single-phase industrial and commercial 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 6kA breaking capacity at 240V 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 20JEH3D1K3LNANNNNN-C2-P18-P72 works in harmony with ControlLogix PLCs, PowerFlex VFDs, and PanelView HMIs—forming a comprehensive single-phase control and protection system. It supports selective coordination with other protective devices, ensuring only the faulty circuit is isolated 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 single-phase industrial applications requiring neutral protection.

4. Product Model

20JEH3D1K3LNANNNNN-C2-P18-P72
20JEH3D1K3LNANNNNN-C2-P46-P72
20JEH3D1K3LNANNNNN-C2-P47-P72
20JEH3D1K3LNANNNNN-C2-P50
20JEH3D1K3LNANNNNN-C2-P50-P72
20JEH3D1K3LNANNNNN-C2-P72
20JEH3D740LNANNNNN-C1
20JEH3D740LNANNNNN-C1-P47
20JEH3D740LNANNNNN-C1-P72
20JEH3D740LNANNNNN-C2
20JEH3D740LNANNNNN-C2-P18-P46
20JEH3D740LNANNNNNC2P18P47P72
20JEH3D740LNANNNNN-C2-P18-P72
20JEH3D740LNANNNNN-C2-P50
20JEH3D740LNANNNNN-C2-P72
20JEH3E545LNANNNNN-C2-P50-P72
20JEH3E980LNANNNNN-C1-P18
20JEH3E980LNANNNNN-C1-P18-P46-
20JEH3E980LNANNNNN-C1-P18-P50
20JEH3E980LNANNNNN-C1-P46-P50-
20JEH3E980LNANNNNN-C1-P50
20JEH3E980LNANNNNN-C2
20JEH3E980LNANNNNN-C2-P18-P50-
20JEH3E980LNANNNNN-C2-P46
20JEH3F505LNANNNNN-C1-P50
20JEH3F505LNANNNNN-C1-P72
20JEH3F505LNANNNNN-C2
20JEH3F505LNANNNNN-C2-P18
20JEH3F505LNANNNNN-C2-P46-P72
20JEH3F920LNANNNNN-C1
20JEH3F920LNANNNNN-C1-P18-P72
20JEH3F920LNANNNNN-C1-P47-P50-
20JEH3F920LNANNNNN-C1-P72
20JEH3F920LNANNNNN-C2
20JEH3F920LNANNNNN-C2-P18-P72
20JEH3F920LNANNNNN-C2-P46-P72
20JEH3F920LNANNNNN-C2-P47
20JEH3F920LNANNNNN-C2-P72
20JEH4C1K4LNANNNNN-C1-P18
20JEH4C1K4LNANNNNN-C2
20JEH4C1K4LNANNNNN-C2-P18-P47-
20JEH4C1K4LNANNNNN-C2-P18-P72
20JEH4C770LNANNNNN-C1
20JEH4C770LNANNNNN-C1-P18-P72
20JEH4C770LNANNNNN-C1-P50-P72
20JEH4C770LNANNNNN-C2
20JEH4D1K3LNANNNNN-C1-P18
20JEH4D1K3LNANNNNN-C1-P18-P72
20JEH4D1K3LNANNNNN-C1-P47
20JEH4D1K3LNANNNNN-C1-P47-P72
20JEH4D1K3LNANNNNN-C2-P47-P72
20JEH4D1K3LNANNNNN-C2-P72
20JEH4D740LNANNNNN-C1-P47
20JEH4D740LNANNNNN-C1-P72
20JEH4D740LNANNNNN-C2
20JEH4D740LNANNNNN-C2-P18-P47-
20JEH4D740LNANNNNN-C2-P72
20JEH4E545LNANNNNNC2P18P50P72
20JEH4E980LNANNNNN-C1-P18-P50
20JEH4E980LNANNNNN-C1-P18-P50-
20JEH4E980LNANNNNN-C1-P50-P72
20JEH4F505LNANNNNNC1P18P47P50P
20JEH4F505LNANNNNN-C1-P72
20JEH4F920LNANNNNN-C1
20JEH4F920LNANNNNNC1P18P47P50P
20JEH4F920LNANNNNN-C1-P18-P50
20JEH4F920LNANNNNN-C1-P72
20LC1K2A0ENNAN10WA
20LC1K2N0ENNJNA0EA
20LC650A0ENNAE11WA
20LC650A0ENNAN10WA
20LC650A0ENNANA0EA
20LC650A0ENNANASEA
20LD1K2A0ENNAN10WA
20LD1K2A0ENNAN20WA
20LD1K2N0ENNXNW0WA
20LD1K2N0NNNKEAEEA
20LD650A0ENNAN10WA
20LD650A0ENNANA0EA
20LD650A0ENNANASEA
20LD650N0ENNXNW0WA
20LF705N0ENNXNW0WA
20L-GH10-A1
20L-GH10-A2
20L-GH10-B1
20L-GH30-A1
20L-GH30-A2
20L-GH30-B1
20P21AD010RA0NNN
20P21AD014RA0NNN
20P21AD019RA0NNN
20P21AD027RA0NNN
20P21AD035RA0NNN
20P21AD045RA0NNN
20P21AD052RA0NNN
20P21AD073RA0NNN
20P21AD086RA0NNN
20P21AD100RA0NNN
20P21AD129RA0NNN
20P21AD167RA0NNN
20P21AD1K1RA0NNN
20P21AD1K3RA0NNN
20P21AD1K4RA0NNN
20P21AD207RA0NNN
20P21AD250RA0NNN
20P21AD330RA0NNN
20P21AD412RA0NNN
20P21AD495RA0NNN
20P21AD4P1RA0NNN
20P21AD667RA0NNN
20P21AD6P0RA0NNN
20P21AD830RA0NNN
20P21AD996RA0NNN
20P21AE067RA0NNN
20P21AE101RA0NNN
20P21AE135RA0NNN
20P21AE1K0RA0NNN
20P21AE1K2RA0NNN
20P21AE1K3RA0NNN
20P21AE1K6RA0NNN
20P21AE270RA0NNN
20P21AE405RA0NNN
20P21AE540RA0NNN
20P21AE675RA0NNN
20P21AE810RA0NNN
20P21AF1K0RA0NNN
20P21AF1K1RA0NNN
20P21AF1K2RA0NNN
20P21AF1K4RA0NNN

5. Product Advantages

D-Curve Protection: 10–20x rated current tripping for optimal safeguarding of inductive loads with high inrush currents.

1P+N Configuration: Protects both line and neutral conductors, mitigating neutral fault risks in single-phase circuits.

Global Compliance: UL/IEC/CE certified for seamless deployment in international industrial and commercial markets.

Rugged Durability: Withstands extreme temperatures, vibration, and chemical exposure in harsh operating environments.

DIN Rail Compatibility: Compact form factor fits standard control panels and distribution boards for easy installation.

Ecosystem Synergy: Integrates seamlessly with Allen Bradley PLCs, VFDs, and HMIs for integrated automation systems.

User-Friendly Design: Clear visual indicators and manual reset simplify monitoring, troubleshooting, and maintenance.

6. Business Insight on www.wheat-auto.com

www.wheat-auto.com (Changzhou Wheat Automation Technology Co., Ltd.) specializes in industrial automation components distribution and precision sensor manufacturing, focusing on agricultural processing, manufacturing, and logistics sectors. Adding the Allen Bradley 20JEH3D1K3LNANNNNN-C2-P18-P72 strengthens its circuit protection portfolio, complementing existing offerings (HMIs, sensors) to deliver integrated single-phase control and protection solutions—especially for applications requiring neutral conductor safeguarding.

As a one-stop automation supplier, the company caters to clients needing end-to-end single-phase systems—where this Allen Bradley Miniature Circuit Breaker’s D-curve design is ideal for protecting inductive loads like small motors and transformers, while the 1P+N configuration addresses neutral fault risks in control panels and sensor networks. This aligns with core client pain points: agricultural processing plants and manufacturing facilities require tailored circuit protection for diverse single-phase equipment, while logistics hubs need reliable devices for automation auxiliary systems. By offering genuine Allen Bradley Miniature Circuit Breakers, www.wheat-auto.com reinforces its position as a comprehensive supplier, allowing clients to source control and protection components from a single trusted partner—enhancing operational safety and efficiency across target sectors.

7. Application Scenarios

Agricultural Processing Plants: Protects single-phase control panel auxiliary power, sensor networks for grain moisture monitoring, and small motors in sorting equipment—leveraging D-curve for inrush current tolerance.

Manufacturing Facilities: Safeguards single-phase robotic cell auxiliary circuits, transformer-powered control systems, and small conveyor motor drives.

Logistics Hubs: Shields single-phase automated guided vehicle (AGV) charging circuits, warehouse lighting systems, and AS/RS auxiliary power networks.

Food & Beverage Plants: Protects single-phase packaging machine control circuits, sanitization system pumps, and refrigeration unit auxiliary power.

Chemical Processing Facilities: Guards single-phase instrumentation circuits, small pump motors, and hazardous area lighting systems requiring neutral protection.

Industrial Control Panels: Integrates into distribution boards to protect PLC I/O modules, relay circuits, and HMI power supplies from electrical faults.

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