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SM3R9000 Lovato rotary motor protection circuit beaker 70-90 amp
MPN: SM3R9000
Special Price
£246.56
£205.47
Regular Price
£410.95
Why Choose the SM3R9000?
Engineered for demanding motor control, the Lovato SM3R9000 Motor Protection Circuit Breaker delivers dependable thermal‑magnetic protection for motors from 70 to 90 A. With a high 50 kA Icu at 400 V and a robust 3‑pole design, it safeguards circuits against overloads and short‑circuits. A rotary knob provides straightforward setting and operation, while UL Type E and IEC/EN compliance support global panel requirements.
Built on the SM3R series, it provides 1000 V rated insulation (Ui) and 6 kV impulse withstand (Uimp) for robust dielectric performance. It offers a mechanical life of 50,000 cycles, dependable operation from −20 to +70 °C, and installation up to 3000 m altitude. Terminals tighten to 4.5 Nm, and the 2,200 g build supports firm mounting in industrial panels.
Key Benefits
- 50 kA Icu at 400 V for strong short-circuit fault clearing.
- Adjustable 70–90 A thermal trip for precise motor protection.
- Thermal‑magnetic protection covers overload and short‑circuit events.
- 3‑pole configuration suited to three‑phase motor circuits.
- Rotary knob control for quick setting and on-panel operation.
- UL Type E and IEC/EN compliance for simplified certification.
- Wide −20 to +70 °C operating range for varied environments.
Technical Specification
- Product type designation: SM3R
- Number of poles: 3
- Rated insulation voltage Ui (IEC/EN): 1000 V
- Rated impulse withstand voltage Uimp: 6 kV
- Mechanical life: 50000 cycles
- Terminal tightening torque: 4.5 to 4.5 Nm
- Operating temperature: -20 to +70 °C
- Storage temperature: -50 to +80 °C
- Max altitude: 3000 m
- Weight: 2200 g
What’s Included
- Lovato SM3R9000 motor protection circuit breaker (3‑pole)
- Product datasheet
- Basic installation and safety information
Applications
- Three‑phase motor starter panels and MCCs
- Pumps, compressors and industrial drives
- Fans, blowers and HVAC motor circuits
- Conveyors and material handling equipment
- General industrial automation control panels
Frequently Asked Questions
What motor current range can the SM3R9000 protect?
The thermal trip is adjustable from 70 to 90 A, with a rated current of 90 A.
What is the short-circuit breaking capacity at 400 V?
It provides 50 kA Icu at AC 400 V.
Is it suitable for three-phase motors?
Yes. It is a 3‑pole motor protection circuit breaker for three‑phase applications.
Which standards and certifications does it meet?
IEC/EN 60947-1, 60947-2, 60947-4-1, UL508, CSA C22.2 n° 14; certified UL Type E.
What ambient conditions can it operate in?
The operating temperature range is −20 to +70 °C, with installation up to 3000 m altitude.
Safety note: Install and commission only by qualified personnel. Isolate power before work, set the thermal trip to match motor FLC within 70–90 A, and follow applicable IEC/EN standards and manufacturer guidance.
| Manufacturer Part Number | SM3R9000 |
|---|---|
| Barcode | 8013975219867 |
| HS Code | 85362090 |
| Manufacturer | Lovato |
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