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imo mu25a20 manual motor starter 16 – 20 amps
IMO MU25A20 manual motor starter with adjustable 16-20A overload protection for industrial motor control applications.
Why Choose the IMO MU25A20 Manual Motor Starter?
The IMO MU25A20 is a high-performance manual motor starter designed to provide reliable motor isolation, switching and overload protection for industrial automation and motor control systems. Manufactured by IMO Precision Controls, this compact unit combines thermal and magnetic motor protection within a durable industrial enclosure suitable for demanding industrial environments.
Part of the trusted IMO MU25A manual motor starter series, the MU25A20 is engineered to protect three-phase motors against overload and short-circuit conditions while providing safe manual switching and local isolation. Its DIN rail mountable format makes it ideal for automation panels, motor control centres and OEM machinery installations where compact and reliable motor protection is essential.
With an adjustable thermal setting range of 16 to 20 A, the IMO MU25A20 is ideally suited to protecting industrial motors used in conveyors, pumps, compressors, ventilation systems and process machinery. The integrated rotary handle enables safe local motor isolation and manual control directly from the panel front.
Key Advantages
- Compact manual motor starter with integrated protection.
- Adjustable overload protection from 16 to 20 A.
- Provides short-circuit and overload protection.
- Integrated rotary isolator for safe local switching.
- Compact DIN rail mountable industrial design.
- Suitable for industrial automation and motor starter systems.
Key Features
- IMO MU25A manual motor starter series.
- Thermal and magnetic motor protection.
- Adjustable current setting range 16–20 A.
- Integrated ON/OFF rotary handle.
- DIN rail mounting capability.
- Lockable OFF position for maintenance safety.
- Finger-safe protection design.
- Supports optional auxiliary contacts and under-voltage trip accessories.
Reliable Protection for Industrial Motors
Manual motor starters combine motor isolation, overload protection and short-circuit protection within a single compact device. This simplifies panel design while helping protect motors against electrical faults and overload conditions that could otherwise result in equipment damage or unplanned downtime.
The IMO MU25A series is widely used in industrial motor control systems requiring compact and reliable motor protection. The MU25A20 is particularly suited to protecting medium-sized motors within automation systems, machinery and OEM equipment installations.
Typical Applications
- Industrial conveyors and material handling systems.
- Pumps, compressors and ventilation systems.
- Packaging and processing machinery.
- OEM automation equipment.
- Industrial control panels.
- Motor protection and local isolation systems.
Technical Specifications
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| Phase | Three Phase | |
|---|---|---|
| IP Rating | IP55 | |
| Series | MU25A Manual Motor Starters | |
| Product type | Manual motor starter | |
| Current adjustment range | 16–20 A | |
| Protection type | Thermal magnetic motor protection | |
| Motor protection | Overload and short-circuit protection | |
| Switching method | Rotary manual operation | |
| Mounting type | DIN rail mounting | |
| No. of phases | Three phase | |
| Rated insulation voltage | 690 V AC | |
| Frequency | 50 / 60 Hz | |
| Mechanical life | Approx. 100,000 operations | |
| Electrical life | Approx. 100,000 operations | |
| Switching frequency | 30 operations per hour | |
| Trip class | Class 10A | |
| IP rating | IP55 with enclosure accessories | |
| Compliance | IEC / EN 60947-4-1 and EN 60947-2 | |
| Weight | Approx. 0.25 kg |
Frequently Asked Questions
What is the IMO MU25A20 used for?
The MU25A20 is a manual motor starter used for switching and protecting three-phase electric motors in industrial motor control systems.
What current range does this motor starter support?
The IMO MU25A20 supports adjustable motor protection settings from 16 to 20 A.
What protection functions are included?
The unit provides integrated overload and short-circuit protection for industrial motor applications.
Can this motor starter be DIN rail mounted?
Yes. The MU25A20 is designed for installation on standard DIN rails within industrial control panels.
Can auxiliary contacts be added?
Yes. The starter supports optional auxiliary contacts and under-voltage trip accessories for enhanced control functionality.
Trusted by Industrial Engineers Worldwide
IMO manual motor starters are widely used in industrial automation and motor control applications to provide dependable motor protection, compact installation and reliable long-term operation.
