MSS312D-0060-FR-N0CN-NNNN Bosch Rexroth Indramat
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MPN: R911311726
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The Bosch Rexroth Indramat MSS312D-0060-FR-N0CN-NNNN is an open kit motor from the MSS Synchronous IndraDyn H Motors series. It features an IP00 degree of protection, uses a KTY84-130 auxiliary sensor, and is equipped with a SNM.150.DK thermal sensor. The motor requires a coolant flow of 7.6 liters per minute and supports both axial and radial coolant threads.
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Product Description:
The MSS312D-0060-FR-N0CN-NNNN is supplied by Bosch Rexroth Indramat within the MSS Synchronous IndraDyn H Motors series. This model is an open stator-and-rotor kit intended to be mounted directly inside machine frames or spindle housings, where the machine design can accommodate the required inertia, cooling, and envelope dimensions. In industrial automation, it operates as a high-performance synchronous drive element, converting inverter current into rotary torque for positioning, milling, or other continuous-duty tasks. Because the kit lacks its own enclosure, liquid cooling passages can be routed through the host assembly to manage thermal loads.
Electrical integration is simplified by a power terminal sized for 25.0 mm² conductors, supporting high continuous currents while minimizing resistive losses. The motor carries an IP00 rating, meaning it has no inherent protection against contact or debris; the surrounding machine casing must therefore provide suitable sealing. Its open kit motor design exposes both the stator and winding surfaces, allowing liquid jackets to extract heat close to the copper. Temperature feedback comes from a KTY84-130 auxiliary sensor and an SNM.150.DK sensor that report winding and stator conditions to the drive. When coolant is present, the assembly tolerates pressures up to 6 bar, and the expected internal pressure differential is only 0.5 bar, which keeps pump demand low.
The axial mounting ring accepts an M30 × 1.5 thread, and fourteen tapped holes on the front face secure the stator to the machine bed. Electrical safety is supported by a dedicated M8 ground thread and one ground point on the same face. Coolant enters through a G 1/2 axial port and can exit laterally through the G 1/4 radial connection. At the specified flow rate of 7.6 L/min, the internal channel distributes coolant evenly around the windings to support continuous torque output. The separate axial and radial connections allow the cooling lines to follow the available routing space within the machine housing.
