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SM3R9900 Lovato rotary motor protection circuit beaker 80-100 amp
Lovato SM3R9900 motor protection circuit breaker with adjustable 80-100 A thermal setting, 100 A rated current and 50 kA breaking capacity at 400 V AC.
£238.01
Why Choose the Lovato SM3R9900 Motor Protection Circuit Breaker?
The Lovato SM3R9900 is a heavy duty motor protection circuit breaker engineered to provide reliable thermal and magnetic protection for industrial motors. As part of the Lovato SM3R motor protection circuit breaker series, it combines overload protection, short-circuit protection and manual motor isolation in one compact, high performance device.
Featuring an adjustable thermal trip range of 80-100 A and a 100 A rated current, the SM3R9900 is ideal for protecting larger three-phase motors used in industrial machinery, pumps, compressors, conveyors and process equipment. Its 50 kA breaking capacity at 400 V AC provides dependable fault interruption for demanding industrial installations.
The SM3R9900 incorporates thermal and magnetic trip protection, phase failure sensitivity and a rotary operating handle, while maintaining compatibility with the extensive range of Lovato SM series accessories including auxiliary contacts, shunt trips, undervoltage releases and door coupling handles.
Key Advantages
- Compact motor protection circuit breaker for industrial motor applications.
- 80-100 A adjustable thermal overload protection.
- 100 A rated current for larger motors.
- 50 kA short-circuit breaking capacity at 400 V AC.
- Integrated thermal and magnetic protection.
- Phase failure sensitivity improves motor protection.
Key Features
- Lovato SM3R motor protection circuit breaker series.
- 80-100 A adjustable overload setting.
- 100 A rated current.
- 3-pole construction.
- 50 kA IEC breaking capacity at 400 V AC.
- Thermal and magnetic tripping.
- Rotary knob operation.
- UL Type E certified.
Reliable Protection for High Current Motor Applications
Motor protection circuit breakers combine overload and short-circuit protection with manual isolation, providing a compact solution for safeguarding industrial motors. They reduce installation complexity while improving equipment reliability and operational safety.
The Lovato SM3R9900 is designed for demanding industrial environments where high current motor protection, dependable fault interruption and long service life are essential. It is particularly suited to larger motors used in manufacturing, material handling and process industries.
Typical Applications
- Industrial motor control panels.
- Motor control centres.
- Pumps and compressor systems.
- Large conveyor installations.
- OEM machinery.
- Manufacturing and process automation.
Technical Specifications
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| Current | 100 A | |
|---|---|---|
| Application | Motor protection | |
| Actuator Type | Rotary | |
| Terminal Type | Screw Terminal | |
| Current Range | 63–100 A | |
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | Motor protection breaker | |
| Breaking Capacity | 50 kA | |
| Manufacturer | Lovato Electric | |
| Series | SM3R | |
| Model | SM3R9900 | |
| Product type | Motor protection circuit breaker | |
| Thermal trip adjustment range | 80-100 A | |
| Rated current (In) | 100 A | |
| Number of poles | 3 | |
| Protection type | Thermal and magnetic | |
| Phase failure detection | Yes | |
| Breaking capacity (Icu) | 50 kA at 400 V AC | |
| Rated operating voltage | 230-690 V AC | |
| Rated frequency | 50 / 60 Hz | |
| Rated insulation voltage (Ui) | 1000 V | |
| Rated impulse withstand voltage (Uimp) | 6 kV | |
| Magnetic trip | 13 × In | |
| Control type | Rotary knob | |
| Connection type | Screw terminals | |
| Protection rating | IP20 | |
| Mounting | DIN rail / panel mounting | |
| Weight | Approx. 2.3 kg | |
| Standards | IEC/EN 60947-1, IEC/EN 60947-2, IEC/EN 60947-4-1, UL508, CSA C22.2 No.14 | |
| Certifications | cULus, EAC | |
| HS Code | 85362090 |
Frequently Asked Questions
What is the Lovato SM3R9900 used for?
The SM3R9900 protects three-phase motors against overloads, short circuits and phase failure while also providing manual switching and isolation.
What current range does the SM3R9900 support?
The thermal overload setting is adjustable between 80 A and 100 A, with a rated current of 100 A.
What is the short-circuit breaking capacity?
The SM3R9900 provides an IEC rated short-circuit breaking capacity of 50 kA at 400 V AC.
Does the circuit breaker include phase failure protection?
Yes. The SM3R9900 incorporates phase failure sensitivity alongside thermal and magnetic protection to help safeguard connected motors.
Can accessories be fitted to the SM3R9900?
Yes. It is compatible with Lovato SM series auxiliary contacts, shunt trip releases, undervoltage releases and door coupling handles.
Trusted by Industrial Control Professionals
Lovato SM3R motor protection circuit breakers are trusted by panel builders, OEM machine manufacturers and automation engineers worldwide for dependable motor protection, high fault interruption performance and long-term operational reliability.
