175U3310 Danfoss
Wake Industrial LLC is not an authorized distributor of this product.
MPN: MCE101A410RP450RE54CAW
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The Danfoss 175U3310 is a brake resistor in the VLT Brake Resistors series with a continuous power rating of 450 Watts and a resistance of 410 Ohms ±10%. It has an IP54 enclosure rating, a fixed cable length of 1000 millimeters, and operates at up to 690 V AC or 1100 V DC. The resistor weighs 2.4 kilograms and includes a switch rated at 2 Amps and 250 V AC with a trip temperature of 180°C.
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Product Description:
The 175U3310 brake resistor is produced by Danfoss for the VLT Brake Resistors series. As an external dynamic braking component, it connects to VLT variable-frequency drives and converts surplus motor energy into heat during deceleration. By keeping the DC-link voltage below the drive limits, the resistor prevents overvoltage faults and permits the controlled stopping of conveyors, pumps, or positioning axes in industrial automation cells.
The continuous dissipation capability is 450 W, indicating the thermal load that the aluminum housing can release under steady-state conditions. For short events, the element withstands 5 kW at a 10% duty cycle or 1.25 kW at a 40% duty cycle, so it can accommodate rapid cyclic braking without exceeding its temperature-rise limits. The wire-wound element provides 410 Ω of resistance with a tolerance of ±10%, ensuring predictable current draw from the drive’s chopper circuit. An IP54 enclosure protects the resistor against limited dust ingress and water splashes, making it suitable for mounting on machine frames or inside ventilated panels. The fixed silicone-insulated leads are 1 m long, with a conductor size of 1.5 mm² for power and 0.5 mm² for the thermal switch.
The maximum connection voltage is 690 V AC or 1100 V DC, providing compatibility with common 400 V and 575 V drive systems. The internal insulation withstands a test potential of 2500 V AC for one minute. Its insulation resistance remains greater than 20 MΩ when measured at 1000 V, helping prevent electrical leakage to the grounded enclosure. A normally closed thermal switch opens at 180 °C and carries 2 A at 250 V AC, allowing the drive to trip if excessive heat accumulates. The assembly weighs 2.4 kg, and its integral cable simplifies installation by eliminating the need for separate junction boxes while maintaining the required dielectric clearances.
