175U3339
Wake Industrial LLC is not an authorized distributor of this product.
MPN: MCE101A28R0P1K40E54CAW
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The 175U3339 brake resistor has a resistance of 28 Ohms, an average rated power of 1.4 kW, and a thermo relay rated at 6.7 Amps. Designed as part of the VLT Brake Resistors series by Danfoss, it features a cable cross-section of 1.5 mm² and mounting options rated IP54 for secure installation.
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Product Description:
The 175U3339 Brake Resistor is an external braking system designed for frequency converters. It ensures efficient energy dissipation during braking by providing a load on the DC link. This helps prevent the DC link voltage from rising excessively. It allows for quick braking of heavy loads such as on conveyor belts.
The 175U3339 brake resistor from Danfoss features a resistance of 28 Ω and provides 1400 W of continuous power under 100 % load. The resistor is capable of handling 17.5 kW of pulse load power at a 10 % duty cycle and 4.38 kW at a 40 % duty cycle. This ensures high performance in various operational conditions. The resistor comes with an aluminum housing and is rated for IP54 protection that offers enhanced durability and resistance against dust and water. It is designed with a maximum operating voltage of 600 V AC and 600 V DC that is suitable for a variety of applications. The resistor is equipped with a temperature switch and its terminal max wire cross-section is 2.5mm² (14 AWG). The power cables are rated for 2 x M8 that ensures secure connections during installation. The resistor's design is optimized for reducing heat buildup during braking that allows energy to be dissipated efficiently outside the panel.
The 175U3339 brake resistor is engineered with a high insulation resistance exceeding 20 MΩ when tested under a potential of 1000 V DC that ensures exceptional dielectric strength and minimizing leakage currents. This characteristic enhances operational safety, reduces the risk of short circuits and provides reliable isolation between the resistor’s conductive elements and its enclosure even under high voltage stress conditions. It also meets UL standards that provides compliance for global markets.
Frequently Asked Questions about 175U3339:
Q: How does the Danfoss 175U3339 brake resistor handle energy dissipation during frequent dynamic braking cycles?
A: It manages pulse load conditions efficiently with up to 17.5 kW capacity at low duty cycles. This enables quick braking for high-inertia loads without exceeding thermal limits.
Q: What safeguards are integrated in the 175U3339 brake resistor for electrical insulation and breakdown protection?
A: It offers high insulation resistance above 20 MΩ and withstands dielectric strength up to 2500 V AC. These characteristics support safe operation under transient voltage spikes or insulation stress.
Q: How does the 175U3339 brake resistor reduce thermal stress on control panels during regenerative braking?
A: Its external mounting and aluminum housing allow efficient heat dissipation away from sensitive electronics. This keeps internal cabinet temperatures stable during high-load braking events.
Q: What makes the Danfoss 175U3339 suitable for use in environments with dust or moisture exposure?
A: It features an IP54-rated enclosure that offers strong protection against particulates and splashing water. This makes it reliable for conveyor systems and outdoor-mounted drives.
Q: How does the 175U3339 brake resistor support safe and robust installation in industrial systems?
A: It includes a temperature switch for thermal monitoring and M8 terminals for secure cable connections. These features simplify integration while enhancing safety during overload scenarios.
