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690V explosion-proof VFDs (Variable Frequency Drives) are specialized motor controllers designed for hazardous, flammable environments (Class I, Div 1/2) requiring high-voltage 3-phase power, typically for motors up to 600kW+. These units feature rugged, flameproof enclosures, with options including customized IP66 ratings, IGBT technology for efficient speed control, and integrated brake choppers.
Key Features and Specifications
- Voltage/Power: 3-phase 690V (or 500-690V range), often rated for high power applications, such as 615kW.
- Protection Type: Explosion-proof (Ex-proof) / Flameproof, typically housed in copper-free aluminum or stainless steel enclosures.
- Compliance: Engineered for hazardous locations, including Class I, Divisions 1 & 2 (Groups B, C, D) and Zones 1 & 2.
- Inverter Performance: High-performance vector control and V/F control modes, optimized for large compressors, conveyors, and mining equipment.
- Environmental Protection: High IP ratings (e.g., IP66 or NEMA 4X) to withstand dust, water, and corrosion.
- Customization: Many 690V explosion-proof VFDs are custom-built to meet specific site requirements for hazardous locations.
Applications
Common Manufacturers and Models
- FGI (FD300 Series): 690V 280kW - 615kW+ options.
- Wolong (WD1000/WD3000): 690V/1140V specialized inverters.
- Renle: Explosion-proof VFDs up to 690V.
- Vectorque: 690V 1140V high-performance universal inverters.
For extreme environments, some manufacturers provide customized, explosion-proof, air-cooled 690V units rather than standard off-the-shelf products.
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690v explosion proof inverter vfd
Shenzhen V&T Technologies Co.,Ltd.
https://www.vectorque.com › blog › 690v-explosion-pr...
Shenzhen V&T Technologies Co.,Ltd.
https://www.vectorque.com › blog › 690v-explosion-pr...
A Variable Frequency Drive (VFD) is a type of motor controller that drives an electric motor by varying the frequency and voltage supplied to the electric motor ...Read more
FD300 Series 280kW 690V VSD Variable Frequency Drive - FGI
fgimvd.com
https://www.fgimvd.com › fd300-series-280kw-690v-v...
fgimvd.com
https://www.fgimvd.com › fd300-series-280kw-690v-v...
The FD300 series Variable Frequency Drive (VFD) by FGI offers power outputs of 280kW, along with voltage options of 690V. This VFD is highly versatile and ...Read more
WD1000/WD3000 Series Low Voltage Inverter
Wolong Nanyang Motor
https://www.motorwolong.com › Low-Voltage-Inverter
Wolong Nanyang Motor
https://www.motorwolong.com › Low-Voltage-Inverter
Explosion proof frequency inverter · Other series · Application Case ... Rated voltage: WD1000: 690V/1140V. WD3000: 3300V/6000V. Rated power WD1000: 315 ...Read more
China Explosion Proof VFD Manufacturers Suppliers Factory
renledrive.com
https://www.renledrive.com › ... › Low Voltage VFD
renledrive.com
https://www.renledrive.com › ... › Low Voltage VFD
It is designed to meet the specific requirements of variable frequency drive applications. The series covers voltage ratings of 380V, 660V, and 690V. The 380VÂ ...Read more
explosion proof variable frequency drive
tianjinyongkai.com
https://explosion_proof_variable_frequency_drive.tianjinyongkai.com
tianjinyongkai.com
https://explosion_proof_variable_frequency_drive.tianjinyongkai.com
... 690V Vector / V/F + Torque Ctrl 97.5 IP20/IP54 $850–$7,900 BrandX VFD Classic ... Vendor Comparison: Why Choose S120 Rectifier + Inverter VFD for Sale ?Read more
Variable Frequency Drives (VFDs)
Larson Electronics
https://www.larsonelectronics.com › category › variable-...
Larson Electronics
https://www.larsonelectronics.com › category › variable-...
10HP Explosion Proof VFD Phase Converter - C1D1/C2D1 - 230 (220-240V) AC 3PH Input/Output - 29.5 Amps - 7.5kW $24411.48Read more
$10,564 to $27,5141–3 day delivery15-day returns
Missing: 690V ‎Inverter
NXS00615A2T1SSVA1A2000000 explosion-proof inverter VFD ...
AliExpress
https://www.aliexpress.com › item
AliExpress
https://www.aliexpress.com › item
NXS00615A2T1SSVA1A2000000 explosion-proof inverter VFD 690V 3-phase IP66 615kw. US $2,501.04. 2% off US $2,552.08. Tax excluded, add at checkout if applicable.
E82MV222-4B001 Lenze Explosion-proof inverter Brand ...
eBay
https://www.ebay.com › ... › Other Automation Equipment
eBay
https://www.ebay.com › ... › Other Automation Equipment
E82MV222-4B001 Lenze Explosion-proof inverter Brand new Shipping ; Condition. New ; Quantity. 2 available ; Item number. 376368407477 ; Materials sourced from.Read more
$2,370.03$7.95 delivery
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Web results
Why did ABB and Siemens only use a 690V VFD solution ...
Quora
2 answers · 8 years ago
Quora
2 answers · 8 years ago
Why did ABB and Siemens only use a 690V VFD solution? Why did they never spend time to develop medium voltage VFD as INVT?
2 answers ·  Top answer: Firstly, ABB and Siemens both have medium voltage VFD offerings. But their marketing focuses ...
Middle Voltage 690V 1140V High-performance Universal ...
Shenzhen V&T Technologies Co.,Ltd.
https://www.vectorque.com › middle-voltage-690v-114...
Shenzhen V&T Technologies Co.,Ltd.
https://www.vectorque.com › middle-voltage-690v-114...
Note: For 690V series inverters, air-cooled inverters are standard products, and explosion-proof inverters need to be customized according to customer needs.Read more