ABB MS116-4.0 Manual Motor Starter
The MS116-4.0 is a compact 45mm-wide manual motor starter from ABB, also known as a motor protection circuit breaker, with a rated operational current of 4.0A and an adjustable setting range of 2.5-4.0A. It provides manual on/off switching for motors along with fuseless protection against short-circuits, overload, and phase failure, making it a reliable choice for motor control panels in UAE commercial and industrial installations.
Key Features
- Manual rotary handle with clear ON/OFF switch position indication for reliable motor switching
- Fuseless protection against short-circuits, overload, and phase failure with trip class 10A
- High rated service short-circuit breaking capacity of 50kA at 400V AC for demanding fault conditions
- Built-in disconnect function, temperature compensation, and trip-free mechanism for safe, reliable operation
- Genuine ABB quality — compatible with a wide range of accessories including auxiliary contacts, shunt trips, and undervoltage releases
Technical Specifications
| Specification |
Details |
| Brand |
ABB |
| Model |
MS116-4.0 |
| Type |
Manual Motor Starter / Motor Protection Circuit Breaker |
| Poles |
3 |
| Setting Range |
2.5-4.0A |
| Rated Operational Current (Ie) |
4A |
| Rated Operational Voltage |
690V AC |
| Breaking Capacity (Ics) at 400V AC |
50kA |
| Breaking Capacity (Icu) at 400V AC |
75kA |
| Rated Operational Power (400V, 3-phase) |
1.5kW |
| Degree of Protection |
IP20 (housing) |
| Mounting |
DIN Rail (TH35-15 / TH35-7.5) |
| Mechanical & Electrical Durability |
100,000 cycles |
| Standards |
IEC/EN 60947-4-1, UL 60947-4-1 |
Applications
- Manual switching and protection of small three-phase motors in industrial and commercial installations
- Motor protection for HVAC fans, pumps, and conveyor drives across UAE facilities
- Single-phase and three-phase motor control panels requiring fuseless overload protection
- Compact motor starter installations in space-constrained control cabinets
FAQ
-
What does a manual motor starter do?
It combines a manually-operated on/off switch with adjustable thermal overload protection for a single motor, in one compact DIN-rail device — suitable for smaller motors that don't need remote/automatic control.
-
How do I set the overload trip current?
The adjustable dial is set to the motor's rated full-load current (from the motor's nameplate) so the starter trips on a genuine overload rather than nuisance-tripping on normal running current.
-
Can this be converted for remote/automatic control?
Some ABB manual motor starters accept an add-on contactor module for remote switching — check the specific model's accessory range if automatic control is needed later.
-
Can I install this myself?
No. Motor starters are wired into live motor circuits and should be installed by a licensed electrician.
