Industrial Electric Motors and Parts: IE3, Explosion-Proof, High-Voltage, and Marine Motors

IE3-class models are supplied in an output range of 0.75kW to 200kW, meeting the IE3 premium efficiency standard under IEC 60034-30-1 (92-95%) and KS standards. Voltage is 600V or below, with standard 220/380V, 380V, and 440V, plus special voltages such as 200V, 400V, 415V, and 460V also available. These motors can meet CE, UL, and CSA certifications, and are supplied with Class F insulation for continuous duty (S1).

Installation types can be selected from four options to suit site conditions.

B3 — Foot-Mounted

B5 — Flange-Mounted

B35 — Foot & Flange

V1 — Vertical, Drip Cover

Both 50Hz and 60Hz are supported and supplied to match the power specifications of the destination country. Starting methods include direct-on-line (DOL), star-delta, and inverter (VFD) starting. For inverter-driven applications, the HSD, HID, and HVD series support constant-torque operation from 0.06-60Hz and constant-power operation from 60-90Hz (ranges vary by series).

50Hz Export Spec

Inverter Duty

Explosion-proof (Ex) motors suited to Zone 1 and Zone 2 hazardous areas are supplied based on an IE3 premium efficiency design. These motors support gas group IIB/IIC and temperature class T1-T6, and can meet IECEx, ATEX, CSA, and KCs certifications depending on specification. Applicable standards include IEC 60079 (explosion protection), the ATEX Directive 2014/34/EU (Europe), and the IECEx CoC (international certification scheme).

Ex d / Ex db — Flameproof (IIB, T4)

Ex eb — Increased Safety

Ex ec — Non-Sparking (formerly Ex nA)

Ex d / Ex db IIC — Hydrogen-Rated

Supplied to refining and petrochemical plants, gas production and storage facilities, LNG and hydrogen plants, chemical process facilities, painting/dust environments, and power plant hazardous areas.

High-voltage (MV/HV) motors are supplied in a voltage range of 2,000V to 14,000V, with 2 to 30 poles depending on series. Class F insulation and a service factor of 1.0 are standard, with operation supported at ambient temperatures of -20 to +40°C (based on 25°C cooling water). These motors meet KS, IEC, NEMA, EN, API, BSI, AS, IS, and JIS standards, with B3 or V1 installation and support for both 50Hz and 60Hz.

Series are organized into 7 types by cooling and enclosure method (output ranges shown are examples at 60Hz, 6,600V, 4-pole).

HLE5

HRQ3

HRN3

HRB5

HRP3

HLS7

HRS7

Motors for shipboard equipment are supplied with moisture- and corrosion-resistant design, and can be supplied to classification society specifications including KR, ABS, DNV, LR, BV, and NK. Applications include ship pumps, blowers, auxiliary power generation equipment, and deck machinery.

Beyond the motors themselves, related parts are also supplied.

• Fans — used for motor cooling
• Terminal Blocks — used to connect power wiring
• Fan Covers — protect the cooling fan
• Terminal Boxes — enclose and protect the wiring connection
• End Shields — support both ends of the motor
• Sensors — detect operating conditions such as temperature
• Seals — used for moisture and dust protection

Individual parts can also be requested for motor replacement or maintenance.

Inverters used for motor speed and load control are also supplied. For the discontinued Hyundai N700E and N700 inverter series, specification information is available for the Hyosung FM3 (as a reference replacement for the N700E) and FM5 (as a reference replacement for the N700). Actual applicability requires model-specific confirmation of capacity, wiring, and other specifications.

These motors are applied across a wide range of industrial equipment and plants, including pumps, compressors, and blowers.