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Motor Circuit Breaker DM3
Description
Description
Motor protection circuit breakers, designed to protect against overload, short circuit, phase failure, and undervoltage. Available in various current ranges, they are ideal for industrial applications.
- Overload and short-circuit protection
- Wide current range (0.63A to 32A)
- Adjustable according to motor power
- Simple installation in electrical panels
Select the options below
CÓD: DM3-1A
Code list
Code list
| Code | Description |
|---|---|
| DM3-1A | 0.63~1A |
| DM3-1,6A | 1~1.6A |
| DM3-4A | 2.5~4A |
| DM3-6,3A | 4-6.3A |
| DM3-2,5A | 6~2.5A |
| DM3-10A | 6~10A |
| DM3-14A | 9-14A |
| DM3-18A | 13–18A |
| DM3-23A | 17~23A |
| DM3-25A | 20–25A |
| DM3-32A | 24-32A |
General specifications
General specifications
| Insulation voltage [Uᵢ] | 690V |
| Working voltage [Uₑ] | 690V |
| Rated impulse withstand voltage [Uᵢₘₚ] | 8kV |
| Operating frequency | 50 / 60 Hz |
| Conventional thermal current [Iₜₕ] | 32A (DM3) 80A (DM4) |
| Trip classes | 10A |
| Overload trip setting (thermal) | 0.6 (0.75) ~ 1 x Iₙ |
| Short-circuit trip (magnetic) | 12 ~ 14 x Iₙ |
| Temperature compensation | -5 ~ 40°C |
| Electrical life | 100 x 10³ operations (15 operations per hour) |
| Power dissipated at rated load | 8W considerando / DM3-32 / DM3R-32 25W considerando / DM4-80 |
| Pollution degree | 3 (ambiente industrial) |
| Ambient temperature | -5 ~ 40°C (Average must not exceed 35°C em 24h) |
| Altitude | ≤2000m |
| Humidity (non-condensing) | ≤90% ~ 25°C ≤50% ~ 40°C |
| Tilt from vertical mounting plane | ≤5° |
| Degree of protection | IP20 |
| Weight | 255g (DM3), 280g (DM3R), 660g (DM4) |
| * Time of trip (tₐ) em 7.2 times the set current starting from cold state | ** Range of adjustment of the current rated Iₙ |