VTG Series Three Phase Solid State Relays
Key attributes
| Brand | Switchgear parts |
| Model NO. | VTG Series Three Phase Solid State Relays |
| 额定工作电流 | 25Amps |
| Series | VTG |
Product descriptions from the supplier
The VTG series three-phase solid state relay (SSR) is a contactless switching device designed specifically for industrial grade three-phase load control. Based on semiconductor technology, it controls high current on/off through microelectronic signals, completely replacing traditional mechanical relays. This series integrates two working modes: zero crossing conduction and random conduction, supporting a wide current range of 3 × 25A to 150A, suitable for 480V/530V AC systems, and providing high stability control for loads such as three-phase motors and heating equipment.
Advantages of VTG series three-phase solid-state relay products:
1. Long lifespan and high reliability
No mechanical contact structure, anti vibration, explosion-proof and corrosion-resistant, with a lifespan that can reach dozens of times that of traditional relays.
2. Strong anti-interference performance
2500V electrical isolation for input/output terminals, compatible with TTL/DTL/HTL logic levels, strong resistance to electromagnetic interference.
3. Dynamic response
High dv/dt tolerance (>1000V/μ s), precise control of inductive load start stop, and suppression of voltage spikes.
4. Intelligent visualization management
LED input status indication, real-time monitoring of control signals, improving fault diagnosis efficiency.
5. Wide range compatibility control
Supports DC 3-32V or AC 90-280V control voltage, compatible with various signal sources such as PLC and temperature controller.
Application of VTG series three-phase solid-state relay products:
1. Industrial automation system
Three phase motor start stop control (fan, pump, conveyor belt)
Power regulation of electric furnace heating and constant temperature equipment
Power management of heavy machinery such as injection molding machines and compressors
2. Energy and Power Control
Automatic switching device for distribution cabinet
Reactive power compensation capacitor switching system
Photovoltaic inverter auxiliary circuit control
3. Public Facilities and Building Management
Three phase air conditioning unit control for buildings
Stage lighting matrix power switch
Traffic signal system power dispatch
4. Special equipment field
Medical instrument high-voltage power module
Explosion proof environmental electrical equipment (chemical, mining)
Laboratory precision temperature control device
Product Selection
| 25Amps | 40Amps | 60Amps | 80Amps | 100Amps | 120Amps | 150Amps | ||
| 3 to 32VDC | 480VAC”Z” | VTG25DA48Z | VTG40DA48Z | VTG60DA48Z | VTG80DA48Z | VTG100DA48Z | VTG120DA48Z | VTG150DA48Z |
| 3 to 32VDC | 480VAC”R” | VTG25DA48R | VTG40DA48R | VTG60DA48R | VTG80DA48R | VTG100DA48R | VTG120DA48R | VTG150DA48R |
| 3 to 32VDC | 530VAC”Z” | VTG25DA53Z | VTG40DA53Z | VTG60DA53Z | VTG80DA53Z | VTG100DA53Z | VTG120DA53Z | VTG150DA53Z |
| 3 to 32VDC | 530VAC”R” | VTG25DA53R | VTG40DA53R | VTG60DA53R | VTG80DA53R | VTG100DA53R | VTG120DA53R | VTG150DA53R |
| 90 to 280VAC | 480VAC”Z” | VTG25AA48Z | VTG40AA48Z | VTG6OAA48Z | VTG80AA48Z | VTG100AA48Z | VTG120AA48Z | VTG150AA48Z |
| 90 to 280VAC | 480VAC”R” | VTG25AA48R | VTG40AAT8R | VTG6OAA48R | VTG80AA48R | VTG10OAA48R | VTG120AA48R | VTG150AA48R |
| 90 to 280VAC | 530VAC”Z” | VTG25AA53Z | VTG40AA53Z | VTG6OAA53Z | VTG80AA53Z | VTG100AA53Z | VTG120AA53Z | VTG150AA53Z |
| 90 to 280VAC | 530VAC”R” | VTG25AA53R | VTG40AA53R | VTG60AA53R | VTG80AA53R | VTG100AA53R | VTG120AA53R | VTG150AA53R |
| ControlVoltage | OutputVoltage | Rated Operational Current | ||||||
Input Specifications
| Control Voltage Range | 3 to 32VDC | 90 to 280VAC |
| Input Current [Max.] | 33/56mADC @=5V/12V | 13mAAC @=220V |
| Input Parameter | U | A |
| Must Turn-off Voltage | 1VDC | 10VAC |
| Must Turn-on Voltage | 3VDC | 90VAC |
| Parameter-list | Specification Limits | |
| Reverse Voltage [Max.] | -6VDC | / |
Output Specifications
| Frequency Range | Hz | 47 to 63 | ||||||
| Load Current Range | Arms | 3×25 | 3×40 | 3×60 | 3×80 | 3×100 | 3×120 | 3×150 |
| Load Voltage Range [480V] | Vrms | 48 to 480 | ||||||
| Load Voltage Range [530V] | Vrms | 53 to 530 | ||||||
| Model No.:VTG | Amps | 25 | 40 | 60 | 80 | 100 | 120 | 150 |
| Off State Leakage Current [Max.] | mArms | ≤8 | ||||||
| Off State dv/dt [Min.] | V/usec | 500 | ||||||
| On State Voltage Drop [Max.] | Vrms | 1.8 | ||||||
| Output Parameter | Units | Specification Limits | ||||||
| Surge Current 20mSec [Max.] | Arms | 300 | 400 | 600 | 800 | 1000 | 1200 | 1500 |
| Thermal Resistance,[Rthjc] | °C/W | 0.75 | 0.55 | 0.46 | 0.38 | 0.34 | 0.23 | 0.23 |
| Transient Overvoltage [480V] | Vpk | ≥1200 | ||||||
| Transient Overvoltage [530V] | Vpk | ≥1400 | ||||||
| Turn off Time [Max.]“A” | mSec | 10 | ||||||
| Turn off Time [Max.]“D” | Cycle | 1/2 | ||||||
| Turn on Time [Max.]“Z” | Cycle | 1/2 | ||||||
| Turn on Time [Max.]”R” | mSec | 1 | ||||||
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