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Motor Circuit Breaker DM3
CÓD: DM3-1A
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
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 |