New product line
Variable Speed Drive (VSD)
BTech V Series: three-phase ac motor speed control, engineered for industrial duty.
The BTech V Series is B-TECH Devices' own-branded range of vector-control variable speed drives for three-phase AC induction motors, covering 0.75 kW to 500 kW. Every drive combines sensorless vector and V/F control, built-in PID process control, programmable I/O, RS485 Modbus RTU communication, and comprehensive motor and drive protection in a compact industrial enclosure.
Why BTech V Series
One drive family, the full power range.
Whether it's a single pump on a small line or a mill motor drawing hundreds of kilowatts, the V Series covers 0.75 kW to 500 kW from one family — so BAS can spec, install, and support your drives without mixing vendors.
- Sensorless vector and V/F control modes, so one drive covers both constant- and variable-torque loads
- 0-400Hz output range with adjustable acceleration and deceleration ramps
- Built-in process PID loop for pumps, fans, and other closed-loop applications
- Programmable digital and analog I/O, plus pulse I/O, for flexible field wiring
- Preset multi-speed operation with onboard timers and counters
- Simple onboard PLC with logic and math function blocks for basic automation without an external controller
- RS485 with embedded Modbus RTU for SCADA, PLC, or BMS integration
- Motor thermal protection, fault history logging, and critical-frequency avoidance
- Onboard data logger and diagnostics for fast commissioning and troubleshooting
How it fits in your plant
Drive, panel, SCADA — one accountable install.
The drive is one part of the loop. BAS specs, panel-builds, and commissions the whole chain so it arrives working, not just wired.
1. The drive
A BTech V Series unit sized to the motor and the load — pump, fan, conveyor, or mill.
2. The panel
Mounted, wired, and protected inside a BAS-built MCC or panel, not left loose in a field enclosure.
Stock photo, representative only — not a BAS-built enclosure.
3. The SCADA link
Its RS485 Modbus RTU port joins your SCADA or PLC, so speed, load, and faults are visible from the control room.
Flagship models
Sized for the plant floor.
Four sizes across the range, from compact single-pump duty to heavy mill and conveyor motors.
Representative line illustration, not the exact unit.
2.2 kW · Frame A
90 × 78 × 165 mm, 1 kg · SVC / V-F · RS485 Modbus RTU
Representative line illustration, not the exact unit.
11 kW / 32 kW · Frame C
145 × 130 × 255 mm, 3 kg · SVC / V-F · RS485 Modbus RTU
Photographed unit shown for reference.
22 kW / 56 kW · Frame E
220 × 130 × 360 mm, 9 kg · SVC / V-F · RS485 Modbus RTU
Photographed unit shown for reference.
90 kW / 190 kW · Frame H
290 × 190 × 640 mm, 39 kg · SVC / V-F · RS485 Modbus RTU
Not sure which size?
Enter your motor, we'll pick the drive.
Tell us the motor's rated power and how it's loaded — we'll match it to the smallest BTech V Series drive rated to carry it.
Full model range
All 29 sizes, one part-number scheme.
Already found your size above? Skip this — it's the complete reference table for the four flagship sizes and everything in between.
Show all 29 sizes
| Part number | Frame | CT power | CT current | VT power | VT current |
|---|---|---|---|---|---|
| Frame A — 90×78×165 mm, 1 kg | |||||
| BTV-0R7G-4 | A | 0.75 kW | 2.5 A | — | — |
| BTV-1R5G-4 | A | 1.5 kW | 3.7 A | — | — |
| BTV-2R2G-4 | A | 2.2 kW | 5 A | — | — |
| Frame B — 98×85×185 mm, 1.5 kg | |||||
| BTV-3R7G/5R5L-4 | B | 3.7 kW | 9.5 A | 5.5 kW | 14 A |
| BTV-5R5G/7R5L-4 | B | 5.5 kW | 14 A | 7.5 kW | 18.5 A |
| Frame C — 145×130×255 mm, 3 kg | |||||
| BTV-7R5G/011L-4 * | C | 7.5 kW | 18.5 A | 25 kW | 25 A |
| BTV-011G/015L-4 * | C | 11 kW | 25 A | 32 kW | 32 A |
| Frame D — 170×150×320 mm, 5.4 kg | |||||
| BTV-015G/018L-4 | D | 15 kW | 32 A | 40 kW | 38 A |
| BTV-018G/022L-4 | D | 18.5 kW | 38 A | 47 kW | 45 A |
| Frame E — 220×130×360 mm, 9 kg | |||||
| BTV-022G/030L-4 | E | 22 kW | 45 A | 56 kW | 60 A |
| BTV-030G/037L-4 | E | 30 kW | 60 A | 70 kW | 75 A |
| Frame F — 270×215×415 mm, 14 kg | |||||
| BTV-037G/045L-4 | F | 37 kW | 75 A | 80 kW | 92 A |
| BTV-045G/055L-4 | F | 45 kW | 92 A | 94 kW | 115 A |
| Frame G — 260×175×610 mm, 28 kg | |||||
| BTV-055G/075L-4 | G | 55 kW | 115 A | 128 kW | 150 A |
| BTV-075G/090L-4 | G | 75 kW | 150 A | 160 kW | 180 A |
| Frame H — 290×190×640 mm, 39 kg | |||||
| BTV-090G/110L-4 | H | 90 kW | 180 A | 190 kW | 215 A |
| BTV-110G/132L-4 | H | 110 kW | 215 A | 225 kW | 260 A |
| Frame I — 310×205×720 mm | |||||
| BTV-132G/160L-4 | I | 132 kW | 260 A | 265 kW | 305 A |
| BTV-160G/185L-4 | I | 160 kW | 305 A | 310 kW | 340 A |
| BTV-185G/200L-4 | I | 185 kW | 340 A | 345 kW | 380 A |
| Frame J — 310×205×930 mm | |||||
| BTV-200G/220L-4 | J | 200 kW | 380 A | 385 kW | 425 A |
| BTV-220G/250L-4 | J | 220 kW | 425 A | 430 kW | 480 A |
| BTV-250G/280L-4 | J | 250 kW | 480 A | 485 kW | 530 A |
| Frame K — 460×260×1000 mm | |||||
| BTV-280G/315L-4 | K | 280 kW | 530 A | 545 kW | 600 A |
| BTV-315G/355L-4 | K | 315 kW | 600 A | 610 kW | 650 A |
| BTV-355G/400L-4 | K | 355 kW | 650 A | 625 kW | 720 A |
| BTV-400G-4 | K | 400 kW | 720 A | 715 kW | — |
| Frame L — 650×500×1065 mm | |||||
| BTV-450G-4 | L | 450 kW | 820 A | 840 kW | — |
| BTV-500G-4 | L | 500 kW | 860 A | 890 kW | — |
* Constant-torque input current pending final verification against the physical nameplate for these two sizes — output ratings shown are confirmed. Ask BAS for a current datasheet before specifying.
No sizes match that filter — .
Matched to your industry
Sized to the load, not just the motor.
Constant-torque (CT) loads — conveyors, mills, crushers — need full torque at low speed. Variable-torque (VT) loads — pumps, fans — don't, and running V/F control on them is where most of a VSD's energy saving comes from. BAS specs the right one for the load, not just the nameplate kW.
| Industry | Typical duty | Example loads |
|---|---|---|
| Paper Mills | Constant torque | Winders, presses, pulpers |
| Sugar | Constant torque | Cane mills, crushers, conveyors |
| Food & Beverages | Both | Process pumps & fans (VT), conveyors & mixers (CT) |
| Mining | Constant torque | Conveyors, crushers, mills |
| Cement | Both | Kiln drives & crushers (CT), ID/FD fans (VT) |
| Agro-Chemicals | Variable torque | Process pumps, agitators |
| Steel | Constant torque | Rolling mills, cranes, conveyors |
| Tobacco | Constant torque | Processing & conveying lines |
Electrical specification
Nameplate summary.
Control & input
Sensorless vector control (SVC) and V/F control. Input: 3-phase AC 380V (-15%) to 440V (+10%), 47-63Hz.
Output
3-phase AC 0V to input voltage, 0-400Hz.
Communication & panel
Built-in RS485 with embedded Modbus RTU protocol. Removable LCD/LED keypad with run/stop, jog, and parameter navigation keys.
Industrial power electronics device. Installation, wiring, and maintenance must be carried out by a qualified electrician in line with the BTech V Series installation guide. Not for use with single-phase motors, DC motors, or life-safety/medical equipment.
Pairs with the rest of your plant
One accountable contractor, not a component seller.
A drive on its own is just a component. BAS supplies, builds, and commissions the whole chain around it.
Panels & MCCs
The enclosure the drive is mounted, wired, and protected in.
SCADA systems
HMI and historian visibility on every drive's speed, load, and faults.
Energy management
Metering to prove the energy savings a correctly-specified VT drive delivers.
24/7 support
The same team that commissions the drive answers the breakdown call.
Need a BTech V Series drive specified?
Tell us the motor, the load, and the application — BAS will size, supply, and commission the right BTech V Series drive.