175U3428
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MPN: MCE101A56R0P3K20E21TAW
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The Danfoss 175U3428 is part of the VLT Brake Resistors series, designed to operate effectively at supply voltages between 380 to 480 V AC ±10%. It has an output frequency range of 0–590 Hz and supports up to IP66 protection ratings. With an efficiency of up to 0.99, it adheres to EN 61800-3 EMC standards.
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Product Description:
This advanced 175U3428 brake resistors specify supply voltage of 380–480 V AC ±10% which maintains the acceptable input range and accommodates supply variations. Its output voltage at 0–100% of supply voltage enables full range braking energy capture. The 0–590 Hz output frequency defines the upper limit for dynamic braking control in variable frequency environments. With an ambient temperature at max 50°C (122°F), the drive bounds the operational limit before derating while ambient temperature min 0°C (32°F) defines the cold-start envelope.
Further, the storage temperature spanning –25 to +70°C (–13 to +158°F) establishes non-operational survival conditions. Altitude without derating 1000 m (3300 ft) specifies elevation limits for standard operation. Altitude with derating 3000 m (10 000 ft) shows extended elevation use with power reduction. This model comes with multiple protection ratings IP20/IP21/IP55/IP66 define enclosure levels from basic indoor protection to full dust and jet/immersion resistance. The efficiency is up to 0.99, indicating high energy return during braking cycles. True power factor (λ) ≥ 0.9 nominal at rated load ensures effective real power utilization and reduces reactive current. Maximum imbalance between phases of 3.0% of rated supply voltage limits voltage unbalance and supports stable resistor performance.
EMC standards EN 61800-3 (Emission/Immunity) confirm compliance with industrial electromagnetic norms. 175U3428 further lists gross weight 14.6 kg and volume 23.452 L which inform handling and cabinet space planning. Mounting method unspecified in the public listing but typical models allow vertical or horizontal placement which aids thermal layout. Thermal cycling endurance above 10000 cycles appears in product series durability tables. The connectors follow screw terminal design for secure electrical contact and simplified maintenance. The dimensions H × W × D is approximate 0.56 × 0.26 × 0.10 m which supports enclosure fitting and ventilation mapping.
Frequently Asked Questions about 175U3428:
Q: What is the maximum operating temperature for 175U3428?
A: The module's maximum ambient temperature is 50°C (122°F). Operation above that point may require derating or additional cooling.
Q: What storage temperature range does 175U3428 support?
A: The component allows storage temperature ranges from -25°C to +70°C (–13 to +158°F) and its span defines safe packaging and shipment conditions.
Q: What minimum ambient temperature is specified for 175U3428 device?
A: The ambient temperature min of 0°C (32°F) defines the lower limit before condensation or cold start issues arise.
Q: What altitude can 175U3428 operate at without derating?
A: The 175U3428 can operate at altitudes up to 1000 m (3300 ft). At this level, the drive maintains full thermal dissipation and efficiency. This means you can install it in most standard environments without worrying about cooling adjustments or performance loss.
Q: How high can the altitude go for 175U3428 with reduced performance?
A: The 175U3428 supports operation up to 3000 m (10,000 ft) when derating is applied. Above 1000 m, thinner air reduces cooling efficiency, so output power must be adjusted. At these higher altitudes, proper cooling design and load management are essential for reliable and safe performance.
