MT308B1-E2C1 Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen MT308B1-E2C1 is a servo motor from the MTC Servo Motors series with a frame size of 90 mm and NEMA 34 mounting flange. It features 2048 LPR incremental encoder feedback and has IP65 sealing with a shaft seal. The motor supports a rated speed of 3000 rpm and weighs 5.1 kg.
Internal Product Review
The MT308B1-E2C1 is a Kollmorgen MTC servo motor with a 3000 rpm rated speed and 5.16 ARMS continuous line current. A 2048 LPR incremental encoder and 90° rotatable receptacles support accurate feedback and straightforward machine integration. IP65 sealing with shaft seal makes the MT308B1-E2C1 a strong choice for demanding servo applications.
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Product Description:
The MT308B1-E2C1 is a brushless servo motor manufactured by Kollmorgen and supplied within the MTC Servo Motors series. This model combines electromagnetic torque production with feedback to enable closed-loop speed and position regulation in machine tools, pick-and-place actuators, and other industrial automation axes. Its electromagnetic design allows it to couple directly to ball screws or gear reducers, translating drive commands into repeatable motion while maintaining accuracy under dynamic loading.
The coil is wound for a rated speed of 3000 rpm, and the back electromotive force constant is 57.3 VRMS/krpm, so the drive must supply up to 250 VRMS across the phases to sustain maximum velocity. Continuous torque production requires a phase current of 5.16 ARMS, while transient moves can draw up to 24.5 ARMS before the applicable operating limits are reached. The winding has an inductance of 22 mH, which moderates the current rise time and works with the DC resistance of 2.11 Ω to affect heating during continuous operation. An 8-pole rotor and a 2048 LPR incremental encoder provide high-resolution feedback for field-oriented control. Power enters through 90-degree rotatable receptacles, allowing the cable exit to be positioned around nearby equipment. The motor mates with a NEMA 34 mounting flange, supporting installation on compatible machine frames and drive assemblies.
The laminated rotor has an inertia of 0.0001749 kg·m², providing moderate acceleration when paired with suitable loads. A compact frame width of 90 mm and a mass of 5.1 kg simplify installation on small machines without requiring oversized support bearings. The motor has an IP65 rating with a shaft seal, allowing operation in dusty or splash-prone areas while helping retain lubrication inside the front bearing. Thermal equilibrium is reached according to a time constant of 33 min, so repeated short duty cycles can occur before the motor reaches its steady-state temperature. The sealed housing helps protect internal components during operation near airborne debris or occasional water exposure.
