SM50-100 Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
The Bosch Rexroth Indramat SM50-100 is part of the SM AC Inverters series and has a rated current of 50 Amps with a peak current of 100 Amps for up to 2 seconds. It features a speed regulating range of 1 to 10,000 and operates in ambient temperatures up to 45 degrees Celsius, with a maximum operating temperature of 55 degrees Celsius. This inverter offers a maximum power loss of 350 Watts and requires a 24 V DC fan supply.
Internal Product Review
The SM50-100 is an SM AC inverter rated for 50 A continuous current and 100 A peak current. A 1:10,000 speed regulating range and 10 kOhm command impedance support precise drive tuning and stable signal handling. Operation to 55 °C makes the unit a strong choice for demanding inverter applications.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The SM50-100 is an AC inverter manufactured by Bosch Rexroth Indramat within the SM AC Inverters series. Designed for industrial automation, the device converts fixed mains power into a variable AC output so that connected motors can run at commanded speeds, ramps, and torque levels suited to conveyors, presses, and material-handling cells. The housing combines power electronics, signal conditioning, and protective circuitry, allowing the unit to be mounted as a single module for closed-loop speed and torque regulation.
The inverter delivers a continuous phase current of 50 A and can supply up to 100 A for 2 s during acceleration or load shocks. Above an ambient temperature of 45 °C, output is reduced at a derating slope of 1.2 %/K, and the internal design limits thermal dissipation to a maximum power loss of 350 W. Speed feedback is scaled across a 1:10,000 regulating range by a tacho signal of 2.7 V per 1000 rpm, while a ±10 V reference circuit provides a +10 V command output to external followers. The analog command port presents a high input impedance of 10 kΩ, minimizing loading on supervisory PLC cards. Nominal control electronics draw only 30 W from the DC bus, and the PE terminal accepts a 10 mm² protective-earth conductor to comply with touch-current safety requirements.
Cooling air is moved by an integral fan powered from a 24 V DC auxiliary rail that draws 100 mA, preventing the internal assembly from reaching the thermal ceiling of 55 °C during extended operation. A dry contact labeled “Ready” can switch 24 V at 1 A DC, giving the host controller a definitive signal once the inverter is synchronized and safe for torque commands. Isolating the fan circuit and status contact from the power stage keeps control references stable and minimizes conducted noise toward adjacent PLC or sensor wiring.
