SIEMENS SIMOTICS SD 1LE7 series low-voltage motor (shaft height 71-315)

SIEMENS SIMOTICS SD 1LE7 series low-voltage motor (shaft height 71-315)

Product positioning: Three phase asynchronous induction motor, with a shaft height coverage of 71-315mm, available in self ventilated (IC411) and forced ventilated (IC416) versions, suitable for industrial drive scenarios, supporting direct grid operation (50/60Hz) and variable frequency drive (such as SINAMICS G/S series).

Typical applications: Industrial equipment such as fans, pumps, compressors, and conveyors, suitable for continuous and intermittent operation.

Safety warning system (core emphasis)

1. Risk grading standards

Adopting a four level risk warning system to clarify the level of risk and response requirements, with a focus on electric shock and injuries to rotating parts

Warning level identification, risk description, typical scenarios

DANGER red safety symbol. Failure to protect may result in death/serious injury. Contact with live parts and rotor falling (when installed vertically)

Warning: The red safety symbol does not provide protection and may cause death/serious injury. Contact with rotating parts and burns on high-temperature surfaces

CAUTION yellow safety symbol may cause minor injury if not protected. Foreign objects may splash during compressed air cleaning

NOTICE unsigned and unprotected may cause property damage, cable shielding errors, and loose bolts

2. Special hazard prevention and control

Electric shock hazard:

Risk: When live parts are exposed, the contact voltage can be fatal, and there may still be residual voltage of ≥ 60V at the terminals after power failure;

Prevention and control: Strictly follow the "5 safety rules" (power-off → anti misoperation → electricity inspection → grounding → protection of adjacent live parts), and match the PE wire cross-section with the phase wire (PE=S when S ≤ 25mm ², PE=0.5S when S>50mm ²).

Danger of rotating parts:

Risk: unprotected rotating components such as fans and couplings can easily cause entanglement injuries;

Prevention and control: It is necessary to install a protective cover. After stopping the machine, wait for the rotor to come to a complete stop (≥ 5 minutes) before removing the protective cover.

High temperature hazard:

Risk: The temperature of the winding/bearing during motor operation may exceed 100 ℃, and the temperature may further increase during anti condensation heating operation;

Prevention and control: Stick a "hot surface" label, cool for at least 30 minutes before maintenance, and interlock the anti condensation heating with the main motor (heating is turned off when the motor is running).

Product Core Features

1. Structure and composition

Component Function Description Key Parameters/Requirements

The stator contains three-phase windings and provides magnetic field insulation level Class 155 (F level). The winding temperature monitoring can be selected from PTC/KTY84/Pt1000

The rotor induced current generates torque dynamic balance level A (optional level B), and the balance methods are divided into "H" (half key), "F" (full key), and "N" (no key)

Bearing supports the rotor, transmits radial/axial force through rolling bearings, with a shaft height of ≤ 200 for permanent lubrication, ≥ 225 with M10 oil injection nozzle, and a design life of ≥ 50000 hours (horizontal coupling)

Cooling system export loss heat self ventilation IC411 (standard, fan installed at the shaft end), forced ventilation IC416 (optional, independently driven fan)

The electrical connection interface of the terminal box can rotate 4 × 90 °, with a protection level of IP65, and the cable entry is compatible with M16-M63 cable glass

2. Key technical parameters

Environmental adaptability:

Operating temperature: -20~+50 ℃ (beyond which capacity reduction is required);

Installation altitude: ≤ 1000m (power reduction of 10% for every 1000m above sea level);

Humidity: ≤ 60% (no condensation), condensation environment requires optional anti condensation heating (power ≤ 50W).

Electrical performance:

Voltage range: Complies with IEC 60034-1 Zone A (voltage fluctuation ± 5%, frequency fluctuation ± 2%);

Insulation resistance: New motor ≥ 100M Ω, during operation ≥ 30M Ω (500V DC test);

Bearing current protection: Insulated bearings (NDE end) can be selected when driving the frequency converter, and EMC grounding (shielded cable double end grounding) is required.

Vibration and noise:

Vibration level: Standard A (compliant with ISO 10816-3), optional B level;

Noise emissions: ≤ 70dB (A) (at rated power), textile industry specific motors require regular cleaning of fan cover fluff.

Full lifecycle operating standards

1. Transportation and Storage

Transportation requirements:

Packaging: Wooden packaging complies with ISPM 15 and is labeled with "Fragile", "Moisture proof", and "This Side Up" signs;

Lifting: Use the motor's built-in lifting ring (with M16 lifting ring for shaft height ≥ 180), with a 2-point lifting angle ≤ 45 °. Single motor lifting of the unit is prohibited.

Storage requirements:

Environment: Indoor dry, dust-free, vibration free, temperature -20~+50 ℃, humidity ≤ 60%;