Key facts
- Brand
- MOTORTRONICS
- Model
- VMX2
- Category
- Motor
- Documents
- 2
- Languages
- EN
- Last added
- 2023-10-19
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Motortronics VMX2 Series Digital Solid State Soft Starter User Manual
The VMX2 Series is a digitally programmable solid-state reduced voltage soft starter designed for three-phase AC induction motors. It features a six-SCR design with voltage and current ramp control, anti-oscillation circuits, and programmable auxiliary contacts for smooth load acceleration and reduced inrush current.
Read onlineMotortronics VMX2 specifications
| Type of Load | Three-phase AC induction motors |
|---|---|
| AC Supply Voltage | 208 - 600VAC ±10%, 50/60 Hz |
| Power Ratings | 9 - 1250 Amps, 7.5 - 1000 HP @ 460V |
| Overload Rating | 500% - 60 seconds |
| SCR Firing Angle Detection | 6 pulse Independent Locked Phase Tracking |
| SCR PIV Ratings | 1600V |
| Control Power | 120VAC (240VAC optional) |
| Inputs | 6 Dry (voltage free) contact inputs |
| Programmable Relay Outputs | 3 relays, 2 each Form C (SPDT), 1 each Form A (SPST) |
| Output Relay Contact Rating | 5 Amps, 240VAC max |
| Approvals | UL Listed, cUL Listed, CE Approved |
Source: Motortronics VMX2 Series Digital Solid State Soft Starter User Manual
All Motortronics VMX2 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the maximum starting current the VMX2 Series can withstand?
The SCRs are sized to withstand starting currents of 500% for 20 seconds (Standard Duty) and up to 500% for 60 seconds (Heavy Duty).
From: Motortronics VMX2 Series Digital Solid State Soft Starter User Manual
Can the VMX2 Series be used with motors operating at a Service Factor greater than 1.0?
Yes, the starter must be sized for the total amps used by multiplying the nameplate FLA by the stated Service Factor.
From: Motortronics VMX2 Series Digital Solid State Soft Starter User Manual
What is the overload rating for the VMX2 Series?
The unit overload rating is 500% of the motor FLA for up to 60 seconds.
From: Motortronics VMX2 Series Digital Solid State Soft Starter User Manual
What types of ramp control are available?
The unit features programmable Voltage Ramp (VR) or closed loop Current Ramp (CR).
From: Motortronics VMX2 Series Digital Solid State Soft Starter User Manual