1MS200D-4B-A1
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MPN: R911250433
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The 1MS200D-4B-A1 motor is a synchronous servo motor with a rated power of 2.0 kW, a rated speed of 3000 rpm, a protection class of IP65, and a weight of approximately 11 kilograms. Part of the 1MB High-Speed Asynchronous Motors series by Bosch Rexroth Indramat, it features natural cooling for efficiency.
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Product Description:
The 1MS200D-4B-A1 is a stator unit of the high-speed asynchronous motors series manufactured by Indramat Rexroth. It possesses a length of 295 mm and the outer diameter of the stator housing is 219.7 mm. The stator’s bearing seat is 220 mm in width on side A and 217 mm on side B while it comes with eight M5 threaded holes for axial mounting through Allen screws with 5 mm lock-pin to prevent rotating.
The 1MS200D-4B-A1 stator features 2 R 1/2" ports for coolant connectivity in accordance with DIN 2999. It supports a rated torque of 85 Nm at 1500 r/min. Under nominal load conditions, it consumes a rated power of 13.3 kW and utilizes 48 A rated current from a 3-phase voltage source. The constant of torque is 1.85 Nm/A and it possess a winding resistance 0.314 Ω. The 1MS200D stator has an inductance value of 2.277 mH between phases and the stator can hold up to 6000 r/min operational electrical speed. Its rotor inertia is 0.037 kg·m² and the weight of the stator on its own is 29 kg. The 1MS200D stator is two poles paired and it utilizes liquid cooling with a water based medium. The coolant has a permissible temperature of 10 K and 6 bars inlet pressure, also flow rate of the coolant should be equal to 3.9 L/min.
The 1MS200D-4B-A1 stator has a peak current rating of 115.8 A in overload scenarios for a brief time to provide a maximum turning effect of 213 Nm. It requires 10 mm² cross-sectional wire for electrical connectivity and offer a thermal time constant of 7 minutes to stabilize the temperature by half. The 1MS200D stator is designed to work within an ambient thermal range of 0 to 40 °C.
Frequently Asked Questions about 1MS200D-4B-A1:
Q: How does the 1.85 Nm/A torque constant benefit the 1MS200D-4B-A1 stator?
A: It allows the motor to deliver steady torque output with minimal current variations. This improves performance accuracy in applications with frequent load changes.
Q: Why does the 1MS200D-4B-A1 stator use liquid cooling instead of air cooling?
A: Liquid cooling ensures better heat dissipation in compact systems. It supports higher power density and extends operational life in enclosed environments.
Q: Why are R 1/2" DIN 2999 ports chosen for coolant entry in this stator?
A: These ports ensure secure coolant connections with standardized fittings. It helps maintain uniform pressure and leak-free operation in industrial settings.
Q: How does the 2.277 mH inductance affect the 1MS200D-4B-A1 stator’s performance?
A: Higher inductance improves phase stability and reduces current spikes. This contributes to smoother motor operation and extended system reliability.
Q: Why is the stator housing designed with two different bearing seat diameters (220 mm and 217 mm)?
A: This asymmetrical design ensures proper alignment and prevents incorrect installation. It improves mechanical integrity and operational balance.
