Product Introduction
The TL919-120A is designed by Mingni Tech, a high-performance latching relays 120A designed for demanding applications requiring reliable high-current switching. This DC latching relay features an impressive 120A contact segmentation capability with low power consumption and pulse drive operation. Available in both single coil and double coil configurations, the TL919-120A supports various voltage options including 24 volt DC latching relay versions (6V, 9V, 12V, and 24V DC coil voltages).
With a maximum switching current of 120A and voltage rating up to 440VAC, this high current latching relay delivers exceptional performance in power distribution applications. The relay boasts strong impact resistance, high reliability, and advanced magnetic arc extinguishing technology. Its compact dimensions (47.1mm × 34.5mm × 22.45mm) make it suitable for space-constrained installations while maintaining a voltage withstand capability of 4kV between contact and coil.
Ideal for industrial automation, power distribution units (PDUs), and high-current switching applications, the TL919-120A latching relay meets IEC62055-31 UC3 standards and is RoHS compliant. Its robust construction ensures reliable operation across a wide temperature range (-40°C to +70°C) with a mechanical life of 300,000 operations and electrical life of 10,000 operations at 100A 250VAC.
Key Features
- High Current Capacity: 120A contact segmentation capability
- Energy Efficient: Low power consumption with pulse drive operation
- Dual Configuration: Available in single coil and double coil versions
- Robust Construction: Strong impact resistance and high reliability
- Advanced Safety: 4kV voltage withstand between contact and coil
- Magnetic Arc Control: Innovative arc extinguishing technology
- Wide Voltage Range: 6V, 9V, 12V, and 24V DC coil options
- Environmental Compliance: RoHS compliant and meets IEC62055-31 UC3 standards
- Compact Design: Space-saving dimensions (47.1mm × 34.5mm × 22.45mm)
Technical Specifications of latching relays 120A
| Parameter | Specification |
|---|---|
| Model | TL919-120A |
| Rated Load | 120A 250VAC |
| Maximum Switching Current | 120A |
| Maximum Switching Voltage | 440VAC |
| Maximum Switching Power | 37,500VA |
| Contact Resistance | 1mΩ Max |
| Operate Time | 20ms Max |
| Release Time | 20ms Max |
| Insulation Resistance | 1,000MΩ Min (DC500V) |
| Dielectric Strength | AC2,000V/AC4,000V 50/60Hz 1min |
| Creepage Distance | 8mm |
| Vibration Resistance | 10~55Hz, 1.5mm |
| Impact Resistance | 100G min |
| Mechanical Life | 300,000 operations |
| Electrical Life | 120A 250VAC/3,000 ops; 120A 60VDC/1,000 ops; 100A 250VAC/10,000 ops |
| Operating Temperature | -40°C to +70°C |
| Humidity | 5%~85%RH |
| Dimensions | 47.1mm × 34.5mm × 22.45mm |
Quick Specifications
- Type: DC Latching Relay
- Current Rating: 120A
- Coil Voltage Options: 6V, 9V, 12V, 24V DC
- Contact Form: Normally Open (with auxiliary contact option)
- Max Switching Voltage: 440VAC
- Contact Resistance: ≤1mΩ
- Operate/Release Time: ≤20ms
- Insulation Resistance: ≥1,000MΩ (DC500V)
- Lifespan: 300,000 mechanical operations
Applications
The TL919-120A high current latching relay is ideal for:
- Power Distribution Units (PDUs): High-current switching in power distribution systems
- Industrial Automation: Control of heavy machinery and equipment
- Energy Management Systems: Battery and power source switching
- Electric Vehicle Charging: High-current circuit control
- Telecommunications: Power switching in base stations and network equipment
- Renewable Energy Systems: Solar and wind power distribution
- Test Equipment: High-current test circuit control
- Marine and Aerospace: Robust switching in demanding environments
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