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R911201172 (RS51.1-4G-050-V-V1-FW)

RD 500 Drive Controllers

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1 Year Warranty Included
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3 Minutes 31 Seconds

The Bosch Rexroth R911201172 (RS51.1-4G-050-V-V1-FW) is an AC drive control device intended for high-speed grinding spindle applications in industrial environments. It operates on a supply voltage of 3 × AC 380–480 V and offers a rated power output of 50 kVA. The unit features integrated brake chopper and brake resistor functionality, with a peak braking output of 80 kW and a continuous braking power of 1.2 kW. The drive provides a 150% overload capacity for 60 seconds, utilizes a 24 V external standby power supply, and has a built-in interference suppression filter meeting strict EMC standards. Designed in an IP20 housing, it is suitable for use in locations protected from dust and moisture within a 0–40°C temperature range. The unit supports removable operator panels and multiple communication interfaces, and weighs approximately 80 kg.

Technical Specifications

Type
Universal AC Drive System

Stand-by power support
24 Volts

Motor Control Algorithm
U/f

Integrated Features
Interference suppression filter, Line reactor

Compliance
EN 61800-3 EMC Product Standard

AC Supply
380-480 Volts AC

Output Power
50 kVA

Cooling Method
Forced Air

Operator Panel
Removable with copy function

Communication Interfaces
SERCOS, Interbus S, Profibus DP

Inter-Drive Communication
Peer-to-peer coupling

Overload Capacity
150% for 60 seconds

Brake Resistor Peak Output
80 kilowatts

Brake Resistor Continuous Output
1.2 kilowatts

Brake Resistor Resistance
10 Ohms

Brake Chopper Continuous Power
40 kilowatts

Brake Chopper Minimum Resistance
9 Ohms

Rated Current
66 Amps

Peak Current
82 Amps

Peak Power
63 kVA

Continuous Output
41 kVA

Size Class
M

Weight
80 kilograms

Housing
IP20 rated

Operating Temperature Range
0 to 40 degrees Celsius

Global Shipping
Yes

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Warranty
1-year-warranty
Indramat USA 1 Year Warranty
Repair
product repair We offer a repair service for the RS51.1-4G-050-V-V1-FW.
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