Invertek Optidrive E3 IP20 AC Inverter Drive: 0.37kW–37kW (VFD)
A technical overview of the Optidrive E3 inverter drive range. Individual power ratings and supply variants are given along with key features, useful downloads and links to individual listings
Product Overview: Invertek Optidrive E3
Invertek Optidrive E3 (Frame Size 1)
The Invertek Optidrive E3 is a compact, UK-manufactured variable frequency drive designed for reliable speed control of three-phase induction motors. It is available for both 230V single-phase supply (delivering a three-phase motor output) and 400V three-phase supply, covering a wide power range up to 37kW. Supplied with EMC filters to support CE and UKCA compliance, the E3 is well suited to panel-mounted industrial and commercial applications such as conveyors, pumps, fans and general machinery. Commissioning is fast and straightforward thanks to an intuitive parameter structure and built-in application macros that simplify setup for common control methods.
- Power Range: 0.37kW to 37kW
- Supply Options: 230V single-phase or 400V three-phase
- Motor Type: Standard AC Induction, PM Synchronous, BLDC and Synchronous Reluctance
- EMC Filter: Fitted with EMC Filter which can be removed from earth if required.
- Mounting: IP20 panel-mounted AC Inverter Drive - IP66 also available
- Direct Replacement for the Optidrive E2
The Optidrive E3 VFD is available in many hardware variations; these details are for the standard IP20 units with either a single-phase 230V or three-phase 400V dedicated AC supply input and three-phase output.
The full range of Invertek Optidrive E3 products are available now ready for dispatch
Optidrive E3 Ratings and Frame Size: 0.37kW to 37kW
Details below are for 2 different voltage ratings 230V Single phase mains supply (220-240Vac) or 400V Three phase mains supply (380-480Vac). Please ensure you select the Optidrive E3 to match your Voltage supply as well as the Voltage and Current rating of your three phase motor. Please note that the 1.5kW unit is available in Frame Size 1 or Frame Size 2 - with or without an Internal Brake Switch.
Single-Phase 230Vac 150% Overload
| kW Rating |
0.37kW |
0.75kW |
1.5kW |
1.5kW |
2.2kW |
4kW* |
| Output Current |
2.3A |
4.3A |
7A |
7A |
10.5A |
15.3A |
| Frame Size |
1 |
1 |
1 |
2 |
2 |
3 |
Three-Phase 400V 150% Overload
| kW Rating |
0.37kW |
0.75kW |
1.5kW |
1.5kW |
2.2kW |
4kW |
5.5kW |
7.5kW |
11kW |
15kW |
18.5kW |
22kW |
30kW |
37kW |
| Output Current |
1.2A |
2.2A |
4.1A |
4.1A |
5.8A |
9.5A |
14A |
18A |
24A |
30A |
39A |
46A |
61A |
72A |
| Frame Size |
1 |
1 |
1 |
2 |
2 |
2 |
3 |
3 |
3 |
4 |
4 |
4 |
5 |
5 |
Hardware Features
| Frame Size |
1 |
2 |
3 |
4 |
5 |
|
| Internal Brake Switch |
No |
Yes |
Yes |
Yes |
Yes |
Fit External Brake Resistor if braking is required - not available on frame 1 |
| EMC Filter |
Yes |
Yes |
Yes |
Yes |
Yes |
Factory fitted option that we offer on our stocked items where available. *Not available on 4kW 230V unit. |
| STO |
No |
No |
No |
No |
No |
Currently not available |
| Mains Cable - Top Entry |
Yes |
Yes |
Yes |
Yes |
No |
Top Entry on all units up to 22kW. Bottom Entry on 30kW and 37kW. |
Optidrive E3 Overall Dimensions
The Optidrive E3 is available up to 37kW and can be DIN mounted up to Frame size 2

Overall Dimensions
| Frame Size |
1 |
2 |
3 |
4 |
5 |
| H - Height (mm) |
173 |
221 |
261 |
420 |
486 |
| W - Width (mm) |
83 |
110 |
131 |
171 |
222 |
| D - Depth (mm) |
123 |
150 |
175 |
212 |
226 |
Optidrive E3 Keypad Functionality
The Optidrive E3 has a seven segment display which is fixed. A separate door mounted keypad is available for door mounting if required

Optidrive E3 Control Terminal Details and Default Wiring Diagram
High quality screw control terminals are fitted on every E3. Details of these terminals are given on a pull out menu card on the front of each unit for ease of use
The Optidrive E3 is supplied ready to operate remotely from external controls. Default wiring details are given below however should you need alternative arrangement this is easily achieved using the macro selection within the unit

Optidrive E3 Installation Requirements
The units mentioned on this page are IP20 therefore they must be mounted in a suitable enclosure with adequate ventilation. Any dust must be non-conducting otherwise this will damage the unit. The Optidrive E3 is also available in a IP66 version which has the same functionality and wiring configuration.
Optidrive E3 Options and Accessories
The Optidrive E3 does not have an option slot but external gateways are available if required. As an alternative to Keypad or PC programming Bluetooth parameter access can be achieved using the optional Optistick Smart. This enables parameters to be accessed, changed, saved and stored as required

Optidrive E3 Manuals
Invertek have a comprehensive user manual available. For those not familiar with the E3 our Easy Start Guide offers step by step instructions for initial set up and operation

Optidrive E3 Part Numbers
Part Number Explanation
| Example |
Product |
Generation |
Frame Size |
Input Voltage |
Rating |
Input Phases |
EMC Filter |
Brake |
IP Rating |
| 0.75kW, 1-ph 230V |
ODE |
3 |
1 |
2 |
0043 |
1 |
F |
1 |
2 |
| 4kW, 3-ph 400V |
ODE |
3 |
2 |
4 |
0095 |
3 |
F |
4 |
2 |
| |
E Series |
3rd Generation |
1 = Frame 1
2 = Frame 2
3 = Frame 3
4 = Frame 4
5 = Frame 5
|
2 = 230V
4 = 400V
|
Output Current
0043 = 4.3A
0095 = 9.5A
0720 = 72A
|
1 = Single Phase
3 = Three Phase
|
F = EMC Filter Fitted |
1 = Brake NOT Fitted
4 = Brake Fitted
|
2 = IP20 |
Single Phase 230V Part Numbers
| Part Number |
Rating |
| ODE-3-120023-1F12 |
0.37kW, 2.3A, Frame Size 1 |
| ODE-3-120043-1F12 |
0.75kW, 4.3A, Frame Size 1 |
| ODE-3-120070-1F12 |
1.5kW, 7A, Frame Size 1 |
| ODE-3-220070-1F42 |
1.5kW, 7A, Frame Size 2 |
| ODE-3-220105-1F42 |
2.2kW, 10.5A, Frame Size 2 |
| ODE-3-320153-1042 |
4kW, 15.3A, Frame Size 3 |
Three Phase 400V Part Numbers
| Part Number |
Rating |
| ODE-3-140012-3F12 |
0.37kW, 1.2A, Frame Size 1 |
| ODE-3-140022-3F12 |
0.75kW, 2.2A, Frame Size 1 |
| ODE-3-140041-3F12 |
1.5kW, 4.1A, Frame Size 1 |
| ODE-3-240041-3F42 |
1.5kW, 4.1A, Frame Size 2 |
| ODE-3-240058-3F42 |
2.2kW, 5.8A, Frame Size 2 |
| ODE-3-240095-3F42 |
4kW, 9.5A, Frame Size 2 |
| ODE-3-340140-3F42 |
5.5kW, 14A, Frame Size 3 |
| ODE-3-340180-3F42 |
7.5kW, 18A, Frame Size 3 |
| ODE-3-340240-3F42 |
11kW, 24A, Frame Size 3 |
| ODE-3-440300-3F42 |
15kW, 30A, Frame Size 4 |
| ODE-3-440390-3F42 |
18.5kW, 39A, Frame Size 4 |
| ODE-3-440460-3F42 |
22kW, 46A, Frame Size 4 |
| ODE-3-540610-3F42 |
30kW, 61A, Frame Size 5 |
| ODE-3-540720-3F42 |
37kW, 72A, Frame Size 5 |
Optidrive E3 FAQ
How to Operate the Optidrive E3 from the Keypad - Click to expand
This is a step-by-step guide on how to set up the Optidrive E3 for Keypad Operation

This is an extract from our Optidrive E3 Easy Start guide which is available to download
How to Reset the Optidrive E3 to Factory Default Values - Click to expand
This is a step-by-step guide on how to reset the Optidrive E3 parameters to factory default values

This is an extract from our Optidrive E3 Easy Start Guide which is available to download
Prepared by Inverter Drive Supermarket Ltd: Specification verified against Invertek Optidrive E3 User Guide; Last Reviewed January 2026