S..R/SPR, S..H/SPH low-voltage wound-rotor induction motors 2.2–315 kW
Country: Germany · Model: S..R/SPR, S..H/SPH
Low-voltage three-phase wound-rotor induction motors with slip rings, rated 2.2–315 kW in frames 132–315. The rotor is connected through rings and brushes to external resistors, so the motor develops a high starting torque at a moderate starting current.
- Series
- S..R/SPR, S..H/SPH
- Frame
- 132–315
- Power
- 2.2–315 kW
- Duty types
- S1, S2, S3, S4/S5
Technical specifications
| Series | S..R/SPR, S..H/SPH |
|---|---|
| Frame | 132–315 |
| Power | 2.2–315 kW |
| Duty types | S1, S2, S3, S4/S5 |
| Speed | 1500, 1000, 750, 600, 500 rpm |
| Protection degree | IP54, IP55, optionally IP56, IP65 |
| Cooling | IC411, IC416, IC410 |
| Mounting | IM B3, B35, B5 |
| Coolant temperature | −20…+40 °C, altitude up to 1000 m |
| Option | RFID transponder iID 2000 |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
Control of the rotor current gives a smooth start of machines with a large moment of inertia, and the motors are especially suited to heavy starting, including in weak or unstable grids. For continuous duty S1 there is a separate catalogue, and for intermittent duty S2, S3 and S4/S5 the catalogue of crane and hoisting machinery. Speeds are 1500, 1000, 750, 600 and 500 rpm. Protection degree is IP54 or IP55, optionally IP56 and IP65 per EN 60034-5, mounting IM B3, B35, B5 and derivatives per EN 60034-7. Cooling per EN 60034-6 is self-ventilation IC411, independent fan IC416 or non-ventilated IC410. Standard conditions are −20…+40 °C and altitude up to 1000 m, optionally an RFID transponder iID 2000.
How to choose
The series is chosen by duty type, that is S1 or intermittent, and by the required speed. Typical applications are cranes and hoists, conveyors, mills, crushers, heavy mechanical engineering, and also pumps, fans and compressors where a smooth start is needed. The motors are made in Germany and come with an EU declaration of conformity for squirrel-cage and wound-rotor induction machines. They replace crane and general-industry wound-rotor motors MTN, MTF, 4ANK and AK.
Request a price and lead time
S..R/SPR, S..H/SPH low-voltage wound-rotor induction motors 2.2–315 kW. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
Why does a wound-rotor motor need external resistors?
Through slip rings and brushes they control the rotor current. The motor develops a high starting torque at a moderate starting current.
What power and frames does this series have?
Power 2.2–315 kW in frames 132–315.
What speeds and duty types are available?
Speeds 1500, 1000, 750, 600 and 500 rpm, duty types S1, S2, S3 and S4/S5.
Are these motors suitable for a weak grid?
Yes, they are especially suited to heavy starting, including in weak or unstable grids.
What protection degrees and cooling are provided?
IP54 or IP55, optionally IP56 and IP65. Cooling IC411, IC416 or IC410.
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Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.