
ESV inverters
The STM Electronic line's ESV variable-frequency inverters, matched to STM motors and geared motors to give speed and torque control, soft start and energy saving. They complete a drive package so speed no longer has to be set mechanically by ratio alone. SES holds the range as an authorised STM Team distributor, covering type VFD, single/three-phase input variants; control V/f and vector modes; features Ramps, presets, braking resistor input; mounting Panel or motor-mount options. Executions include ESV panel inverter, motor-mount inverter, single-phase input, three-phase input. It is specified most often into conveyor speed control and pump and fan energy saving. Every part is genuine STM Team through official channels, with designation, specification and options confirmed against your duty before it ships — supplied from Kolkata and our branch network, with breakdown cover that does not sit in an inbox.
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Type
Variable-frequency inverter (VFD)
Line
STM Electronic ESV
Function
Speed / torque / soft start
Type
VFD, single/three-phase input variants

Where it runs.
You will find ESV inverters in the parts of a plant where this particular duty actually occurs. In practice that means conveyor speed control, pump and fan energy saving, mixer speed setting, and equally packaging-line synchronisation, general variable-speed drives. What links them is the duty rather than the machine name — type: Variable-frequency inverter (VFD). If your installation is not on that list it matters less than you would think: the operating condition decides the specification. Send us the load, the speed, the running temperature and the environment it runs in, and we will match it to the right execution in the STM Team range and confirm what is in stock.
Specify it against the duty.
Specification here follows the operating condition, not the catalogue. Adjust machine speed electronically — ESV inverter matched to the motor kW Soft start to cut belt/chain shock — ESV with ramp-up/ramp-down profile Fan/pump energy saving — ESV in variable-torque mode Where two of those apply at once, specify for the harsher of the two — under-specifying is what puts the part back on the bench a month later. Send us the duty and we will confirm the execution.

Ordering this from SES.
Match the inverter to the motor kW and duty (constant vs variable torque), and add a braking resistor where the load overhauls the motor. Send the designation off the failed part and we will confirm the STM Team equivalent and stock position.
