175U3007
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MPN: MCE101A270RP200RE54CAW
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The 175U3007 is a brake resistor with a resistance of 270 Ohms and continuous power rating of 200 W. Manufactured by Danfoss as part of the VLT Brake Resistors series, it offers IP54 protection and weighs 0.54 kg. Its dimensions are 251 x 76 x 15 mm, and it delivers a pulse power of 3.05 kW at 10% duty cycle.
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Product Description:
The 175U3007 belongs to the VLT brake resistor series from Danfoss that possess a specific product code MCE101A270RP200RE54CAW. It is built for use in braking systems with variable frequency drives (VFDs) and it features a nominal resistance of 270 Ω, while it is capable of handling continuous power dissipation of 200 W under full load conditions.
The 175U3007 resister can manage pulse loads of 3.05 kW at a 10% duty cycle and 0.75 kW at a 40% duty cycle to ensure stable operation. It incorporates an integrated temperature switch, which activates at 180°C to prevent overheating and ensures the safe operation of the resistor, this protection feature is essential for maintaining the longevity and reliability of the braking system as well. The resistor’s design allows for a maximum wire cross-section of 1.5 mm² and with an IP54 enclosure rating, it withstand exposure to solid objects larger than 12 mm. The physical dimensions of this 175U3 resister are 251 mm in length, 204 mm in height and it weighs 0.54 kg for compact integration into various system configurations. It facilitates mounting through screw terminals or bolt connections and it is optimized for high pulse load conditions, often encountered in motor braking applications where frequent and rapid deceleration is required.
The 175U3007 resister offers 2 A, 250 V AC, normally closed (NC) contact and its maximum tolerable housing temperature is specified as 300 °C. It effectively dissipates excess energy from the braking process to prevent damage to the drive system and reduces the risk of tripping or system failure. This unit is compatible with a wide range of industrial drives to ensure smooth energy recovery and preventing overvoltage conditions in dynamic braking in industrial automation systems.
Frequently Asked Questions about 175U3007:
Q: How does the integrated thermal switch in the 175U3007 MCE101A270RP200RE54CAW improve safety?
A: The thermal switch cuts off operation at 180°C to prevent overheating. This ensures protection against insulation damage and enhances resistor reliability.
Q: What advantage does the normally closed (NC) contact at 180°C provide?
A: The NC contact triggers an alarm or shutdown when overheating occurs. This offers early fault detection to minimize drive downtime.
Q: How does supporting a maximum wire cross-section of 1.5 mm² benefit the 175U3007 MCE101A270RP200RE54CAW?
A: It allows safe current handling while simplifying installation in compact control panels. This ensures consistent conductivity under braking loads.
Q: What is the role of screw and bolt connection mounting in the 175U3007 resistor?
A: It provides mechanical stability under vibration and thermal stress. This ensures reliable long-term performance in dynamic environments.
Q: How does a maximum tolerable housing temperature of 300°C impact resistor longevity?
A: It indicates strong thermal endurance of housing materials. This allows safe operation during prolonged or heavy-duty braking.
