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Westhomes JR36 sealed electromagnetic thermal overload relay, miniature pin style with durable AC copper contacts, rated 0.1-140A and adjustable 9-95A, 3-phase stable structure, flexible mounting, robust long-distance control for industrial motors.
Westhomes JR36 sealed electromagnetic thermal overload relay, miniature pin style with durable AC copper contacts, rated 0.1-140A and adjustable 9-95A, 3-phase stable structure, flexible mounting, robust long-distance control for industrial motors.
The Westhomes JR36 sealed electromagnetic thermal overload relay is a professionally designed industrial protection component specifically designed for reliable remote motor control and comprehensive thermal overload protection. This miniature needle relay features a fully sealed electromagnet with stronger dust, moisture, and electrical interference resistance, making it fully adaptable to various industrial working environments.
Key Features：
Extra-Long Service Life & Low Upkeep: Crafted with wear-resistant industrial-grade materials and precision manufacturing, built for sustained durability, requiring only minimal routine maintenance to keep optimal performance.
Versatile Mounting Flexibility: Supports both screw mounting and standard DIN rail installation, with simple wiring and quick setup steps, adapting to different control cabinet layouts and installation demands.
Miniature Pin Type & Copper Contacts: Compact miniature size with standard pin interface saves installation space; premium AC copper contacts boost conductivity and contact stability for extended relay life.
Sealed Robust Construction: Fully sealed electromagnetic design with high-strength casing, resisting external damage and interference, delivering reliable long-distance switching and stable operation under heavy use.
Applications:
Harsh Environment Workshops
Equipment Retrofit & Replacement
Long-Distance Remote Control Systems
| Model | Current Adjus- tment Range |
Control Power(kW) | Pluggable Contactor | Short Circuit Protection Fusegreed Heating Current |
|||||
| 220V | 380V | 415V | 440V | 660V | aM | gG | |||
| JR28-09301d | 0.1~0.16 | CJX2-09~25 | 0.25 | 2 | |||||
| JR28-09302d | 0.16~0.25 | CJX2-09~25 | 0.5 | 2 | |||||
| JR28-09303d | 0.25~0.40 | CJX2-09~25 | 1 | 2 | |||||
| JR28-09304d | 0.40~0.63 | 0.37 | CJX2-09~25 | 1 | 2 | ||||
| JR28-09305d | 0.63~1 | 0.55 | CJX2-09~25 | 2 | 4 | ||||
| JR28-09306d | 1~1.6 | 0.37 | 0.55 | 0.75 | CJX2-09~25 | 2 | 4 | ||
| JR28-09307d | 1.6~2.5 | 0.37 | 0.55 | 0.75 | 1.1 | 1.5 | CJX2-09~25 | 4 | 6 |
| JR28-09308d | 2.5~4 | 0.75 | 1.1 | 1.5 | 2.2 | 3 | CJX2-09~25 | 6 | 10 |
| JR28-09310d | 4~6 | 1.1 | 2.2 | 2.2 | 2.2 | 4 | CJX2-09~25 | 8 | 16 |
| JR28-09312d | 5.5~8 | 1.5 | 3 | 3.7 | 3.7 | 5.5 | CJX2-09~25 | 12 | 20 |
| JR28-09314d | 7~10 | 2.2 | 4 | 4 | 4 | 7.5 | CJX2-09~25 | 12 | 20 |
| JR28-12316d | 9~13 | 3 | 5.5 | 5.5 | 5.5 | 10 | CJX2-09~25 | 16 | 25 |
| JR28-18321d | 12~18 | 4 | 7.5 | 9 | 9 | 15 | CJX2-09~25 | 20 | 35 |
| JR28-25322d | 17~25 | 5.5 | 11 | 11 | 11 | 18.5 | CJX2-09~25 | 25 | 50 |
| JR28-32353d | 23~32 | 7.5 | 15 | 15 | 15 | 22 | CJX2-32 | 40 | 63 |
| JR28-32355d | 28~36 | 10 | 18.5 | 22 | 22 | 30 | CJX2-32 | 40 | 80 |
| JR28-40353d | 23~32 | 7.5 | 15 | 15 | 15 | 22 | CJX2-40~80 | 40 | 63 |
| JR28-40355d | 30~40 | 10 | 18.5 | 22 | 22 | 30 | CJX2-40~80 | 40 | 80 |
| JR28-50357d | 37~50 | 11 | 22 | 25 | 25 | 37 | CJX2-40~80 | 63 | 100 |
| JR28-65359d | 48~65 | 15 | 25 | 30 | 30 | 45 | CJX2-40~80 | 63 | 100 |
| JR28-65361d | 55~70 | 18.5 | 30 | 37 | 37 | 55 | CJX2-40~80 | 80 | 125 |
| JR28-80363d | 63~80 | 22 | 37 | 45 | 45 | 75 | CJX2-40~80 | 80 | 125 |
| JR28-140365d | 80~104 | 30 | 45 | 55 | 55 | 75 | CJX2-115~170 | 125 | 200 |
| JR28-140367d | 95~120 | 30 | 55 | 75 | 75 | 90 | CJX2-115~170 | 125 | 224 |
| JR28-140369d | 110~140 | 37 | 63 | 75 | 75 | 110 | CJX2-115~170 | 160 | 250 |
| Selling Units | Single item |
| Quantity (pieces) | 1 – 100 | > 100 |
| Lead time (days) | 15 | To be negotiated |
| Theory | AC |
| Power Source | 50 Hz, 60 Hz |
| Terminal Shape | Screw or rail installation |
| Contact Material | CJX2 |
| Place of Origin | Zhejiang, China |
| Rated Current | 0.1-140A |
| Size | Miniature |
| Contact Load | Low Power |
| Model Number | JR28 |
| Brand Name | Westhomes |
The Westhomes JR36 Motor Protection Relay is a thermal overload protection device designed to protect AC motors from overload, phase failure, and abnormal operating conditions. It is commonly used with contactors to provide reliable motor protection in industrial control systems.
The main function of the JR36 Motor Protection Relay is to monitor motor current and disconnect the control circuit when overload conditions occur. It helps prevent motor overheating, insulation damage, and premature equipment failure.
The JR36 provides thermal overload protection and phase failure protection. It detects excessive current caused by motor overload and helps protect motors from damage caused by abnormal operating conditions.
The JR36 is suitable for industrial motor applications such as pumps, fans, compressors, conveyors, machine tools, and automation equipment. It is widely used in motor control cabinets and low-voltage electrical systems.
A motor protection relay mainly provides overload and phase failure protection and is usually installed together with a contactor. An MPCB combines motor switching, overload protection, and short-circuit protection in a single device.
No. The JR36 is designed for overload and phase failure protection. Short-circuit protection should be provided by additional protective devices such as fuses, MCBs, or MCCBs according to the electrical system requirements.
The JR36 monitors the motor current through thermal elements. When the current exceeds the preset value for a certain period, the relay trips and disconnects the control circuit to prevent overheating and motor damage.
Yes. The JR36 Motor Protection Relay is designed to work together with AC contactors to create a complete motor starter solution. This combination provides motor control and overload protection for industrial applications.
The correct JR36 model should be selected according to the motor’s rated current, operating voltage, power rating, and application requirements. The overload setting should be adjusted according to the motor nameplate current to ensure effective protection.
The Westhomes JR36 offers reliable overload protection, stable performance, and easy integration with motor control systems. It provides an effective solution for protecting industrial motors, improving operational safety, and extending equipment service life.
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