RZW02.1-003-006
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MPN: R911200630
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The RZW02.1-003-006 braking resistor features a galvanized steel plate housing, a peak power of 3 kW, and a protection class of IP 23. Part of the RZW Braking Resistors series by Bosch Rexroth Indramat, it operates within a temperature range of 0 to 40°C and weighs only 1.8 kilograms.
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Product Description:
The RZW02.1-003-006 braking resistor is manufactured by Bosch Rexroth which works in conjunction with driving systems that require regulated braking during deceleration. The brake resistor is used for industrial automation applications that require constant electrical load management across multiple cycles.
The RZW02.1-003-006 braking resistor has a power class of 003, allowing it to handle 2.7 kW peak and 3 kW rated power. The switching duty is 6% of a 120-second load cycle, with a defined on duration of 7.2 seconds and an off time of 112.8 seconds. The resistor is a Type A, A12 resistor. It is made of cemented wire-wound conduit and an integrated termination box. The minimum connectable resistance is 30 ohms, and the resistance value at 6 percent switching duty is 68 ohms. The thermal time constant of the Type A resistor is 300 seconds. The brake resistor requires a minimum line cross-section of 10 mm² for grounding and has a cable cross-section rating of 2.5 mm². The porcelain connecting terminals are housed within a PG screw terminal box. The storage temperature range is -25°C to +70°C, while the operational temperature range is 0°C to 40°C. Under non-condensing conditions, the relative humidity tolerance can reach 90%.
The RZW02.1-003-006 braking resistor is constructed from steel and features a perforated cover and lateral components. The mounting is meant to be bolted on in a horizontal position relative to the surface. The surface temperature of the resistor can reach 80°C when it is actively operating. Applications requiring repeated braking cycles under controlled temperature and electrical conditions are ideal for the resistor. The design enables the easy integration of energy dissipation technologies used in industrial automation. A terminal box with PG screw design is used in the construction to ensure a stable connection structure.
Frequently Asked Questions about RZW02.1-003-006:
Q: Why does RZW02.1-003-006 have a 6% SD?
A: The 6% switching duty allows intermittent operation that protects the resistor from overheating and ensures longer functional reliability.
Q: Why does RZW02.1-003-006 use 68 ohms of resistance?
A: The 68-ohm resistance at 6% SD controls power dissipation effectively during braking intervals and reduces thermal stress buildup.
Q: How does RZW02.1-003-006 handle grounding?
A: It requires a minimum 10 mm² copper conductor for grounding that ensures a secure discharge path and electrical safety.
Q: Do RZW02.1-003-006 resistors support high humidity?
A: Yes, they tolerate up to 90% non-condensing humidity, which helps them operate in variable temperature zones without insulation breakdown.
Q: Why does RZW02.1-003-006 have PG screw terminals?
A: The PG screw terminal box provides robust cable fastening that prevents loosening during load cycles and maintains connection integrity.
