Home / Product / Relay for Overvoltage and Undervoltage Protector / Relay for Overvoltage / HJE11F-120A-250VAC Latching RelayProduct Overview: In power applications with frequent start-stop cycles and continuous operation, traditional relays often face the dual challenges of energy consumption and lifespan. This magnetic latching relay, with its unique physical locking design, achieves a smart operating mode of one-time energization and long-term locking, ensuring that 120A high-current switching is no longer a burden on power consumption.

Core Values
Stabilized Zero Energy Consumption, Dynamically More Reliable: Requires an electrical signal only during switching; operates without power consumption or heat generation during long-term operation.
120A High Load Endurance: Silver-based composite contact material withstands frequent switching impacts and adapts to harsh 250VAC environments.
Power-Off State Memory: Maintains contact state during unexpected power outages, ensuring system continuity.
Military-Grade Structure: Compact housing with shock-resistant design, adaptable to complex industrial conditions.
Precise Application Scenarios
Smart Meter Remote Load Control System
Photovoltaic Power Station Grid-Connected/Off-Grid Switching Device
Electric Vehicle Charging Pile Power Control Module
Industrial Equipment Soft Start/Safety Protection Circuit
| Contact Data | |
| Rated load(FLA) | 120A/250VAC |
| Contact form | 1A & 1B |
| Contact material | AgSnO2 |
| Initial contact resistance | 2mΩ(0.1A@6vdc) |
| Max. switching current | 120A |
| Max .switching voltage | 250VAC |
| Ma x.switching power | 30000VA |
| Electrical endurance | 1x104 ops |
| Mechanical endurance | 1x106ops |
| Characteristics | ||
| Insulation resistance | 1000MΩ(at 500VDC) | |
| Dielectric strength | Coil to contact | 4000VAC 1 min |
| Across open contact | 2000VAC 1 min | |
| Operate time | Max.20ms | |
| Release time | Max.20ms | |
| Shock resistance functional | 100m/s2 (10g) | |
| Shock resistance destructive | 1000m/s2 (100g) | |
| Ambient temperature | -40~85℃ | |
| Humidity | 98%RH, +40℃ | |
| Vibration resistance | 10-55Hz, 1.5mm(DA) | |
| Termination | PCB | |
| Unit weight | 70g | |
| Construction | Dust protected | |
| Coil Power | ||
| Coil type | Pulse duration | Power consumption |
| Single | Min.50ms | 2W |
| Dual | Min.50ms | 4W |
| Coil Data | |||||
| Nominal coil voltage | 6Vdc | 9Vdc | 12Vdc | 24Vdc | |
| Operating Voltage VDC | ≤4.2 | ≤6.3 | ≤8.4 | ≤16.8 | |
| Coil Resistance (Ω±10%)@23℃ | Single coil resistance | 18Ω | 40.5Ω | 72Ω | 288Ω |
| Dual coil resistance | 2×9Ω | 2×20Ω | 2×36Ω | 2×144Ω | |

Application Notes
1、All relays are shipped in the “closed” position. It is possible that during transit or final assembly, the relay could change its state to the “open” position. Therefore, it is recommended that all relays be set to the desired state of the relay via a power supply.
2、In order to maintain an “open” or “closed” state of the relay, the coil voltage should reach the rated voltage. The pulse width should be 5 times the operating time to ensure a proper change of state. Do not energize both T1, T,2 and T3 at the same time on a dual coil, or energize the coil for longer than 1 minute (damage to the coil could incur).
3、Relays have polarity; if the user’s need is different fromthe information, please contact us.
4、The relay to the factory inspection and use should be handled to prevent damage to the factory for damaging the goods, shoud be strict distinction between the normal product and must not be used.
Established in May 2021
Annual exports account for about 30%
The company occupies an area of 8,000 square meters.
Huajin Technology Jiaxing Co., Ltd. was established in May 2021 and is located at 707 Yanyu Road, Yucheng Town, Haiyan County, Jiaxing City, Zhejiang Province. It is a high-tech enterprise specializing in the research and development, production, and sales of relays. The registered capital of the company is 10 million yuan, covering an area of 8000 square meters, with more than 120 employees. The annual production capacity of magnetic latching relays is over 10 million, of which exports account for about 30%. The company has obtained ISO9001-2015 quality management system certification, and its relays have passed CCC certification, State Grid certification, TUV certification, etc. It also holds multiple technical patents. Our main products include motor relays, single-phase, two-phase, and three-phase magnetic latching relays, which have a wide variety of types and can meet various customized solutions for customers.