HELMKE Helmke DOR355M-04-2G
About HELMKE
HELMKE from Germany is a leading manufacturer of industrial equipment, supplying reliable products to customers worldwide. All products come with original manufacturer documentation, CE certification, and full technical support.
HELMKE Helmke DOR355M-04-2G — Product Overview
The HELMKE Helmke DOR355M-04-2G is a three-phase asynchronous squirrel-cage induction motor designed for demanding industrial applications. It delivers 250 kW of rated power at 1500 RPM , built on IEC frame 355.
With IE2 energy efficiency classification, this motor delivers superior performance while meeting current EU MEPS (Minimum Energy Performance Standards) under EU regulation 2019/1781.
- IP55 degree of protection — dust-tight and jet-water resistant
- Insulation Class F, thermal protection class B — suitable for ambient temperatures up to +40°C
- Duty cycle S1 (continuous operation)
- Cooling method IC411 (totally enclosed fan-cooled, TEFC)
- CE marked, RoHS compliant, meets IEC/EN 60034
- Country of manufacture: Germania
Available Mounting Configurations
The Helmke DOR355M-04-2G is available in 3 mounting configurations: B3, B35, B5. Each configuration has its own article number, enabling direct procurement without substitution errors.
Technical Specifications
| Rated Power | 250 kW |
| Number of Poles | 4 |
| IEC Frame Size | 355 mm |
| Rated Speed | 1500 RPM |
| Energy Efficiency Class | IE2 |
| Rated Current (400V) | 421 A |
| Rated Torque | 1607 Nm |
| Full Load Efficiency | 95.1 % |
| Efficiency at 75% Load | 95.1 % |
| Efficiency at 50% Load | 94.3 % |
| Power Factor (cos φ) | 0.9 |
| Weight | 1850 kg |
| Supply Voltage | 400V / 690V (Y/Δ) |
| Frequency | 50 / 60 Hz |
| Protection Class | IP55 |
| Insulation Class | Class F |
| Duty Cycle | S1 (Continuous) |
| Cooling Method | IC411 (TEFC) |
| Standards | IEC/EN 60034, CE |
| Brand | HELMKE |
| Country of Origin | Germania |
| Article INDASTRA | DOR355M-04-2G-IE2-250-1485 |
Available Mounting Configurations
Each configuration is a distinct article. Click to open the dedicated product page with full documentation.
| Article | Mounting | Price | Delivery | Status | |
|---|---|---|---|---|---|
| DOR355M-04-2G-IE2-250-1485-B3 | B3 | On request | Da verificare | In stock | |
| DOR355M-04-2G-IE2-250-1485-B35 | B35 | On request | Da verificare | In stock | |
| DOR355M-04-2G-IE2-250-1485-B5 | B5 | On request | Da verificare | In stock |
Product Documentation
Industrial Applications
Typical use-cases where HELMKE Helmke DOR355M-04-2G is deployed:
Analogs to HELMKE Helmke DOR355M-04-2G
20 compatible replacementsFunctionally equivalent motors — same frame, power, and pole count from alternative manufacturers.
| Parameter |
HELMKE
Helmke DOR355M-04-2G
250 kW · 1500 RPM
Current
|
Lönne
Lönne 1TZ5 C 355L-4
400 kW · 1500 RPM
40% match
|
Lönne
Lönne 1TZ5 C 355L-4
500 kW · 1500 RPM
40% match
|
Lönne
Lönne 1TZ5 C 355L-4
400 kW · 1500 RPM
40% match
|
Lönne
Lönne 1TZ5 C 355L-4
500 kW · 1500 RPM
40% match
|
Lönne
Lönne 1TZ5 C 355M-4
355 kW · 1500 RPM
40% match
|
Lönne
Lönne 1TZ5 C 355M-4
355 kW · 1500 RPM
40% match
|
Cantoni motor
Cantoni motor 2SIE 355H4D
355 kW · 1500 RPM
60% match
|
Cantoni motor
Cantoni motor 2SIE 355ML4
200 kW · 1500 RPM
60% match
|
Cantoni motor
Cantoni motor 2SIE 355ML4A
250 kW · 1500 RPM
100% match
|
Cantoni motor
Cantoni motor 2SIE 355ML4B
315 kW · 1500 RPM
60% match
|
|---|---|---|---|---|---|---|---|---|---|---|---|
| Brand | HELMKE | Lönne | Lönne | Lönne | Lönne | Lönne | Lönne | Cantoni motor | Cantoni motor | Cantoni motor | Cantoni motor |
| Part Number | DOR355M-04-2G-IE2-250-1485 |
1TZ5 C 355L-4-IE3-400-1492 | 1TZ5 C 355L-4-IE3-500-1491 | 1TZ5 C 355L-4-IE4-400-1492 | 1TZ5 C 355L-4-IE4-500-1491 | 1TZ5 C 355M-4-IE3-355-1492 | 1TZ5 C 355M-4-IE4-355-1492 | 2SIE 355H4D-IE2-355-1488 | 2SIE 355ML4-IE2-200-1490 | 2SIE 355ML4A-IE2-250-1489 | 2SIE 355ML4B-IE2-315-1489 |
| Power (kW) | 250 kW | 400 kW | 500 kW | 400 kW | 500 kW | 355 kW | 355 kW | 355 kW | 200 kW | 250 kW | 315 kW |
| Poles | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Rated Speed | 1500 RPM | 1500 RPM | 1500 RPM | 1500 RPM | 1500 RPM | 1500 RPM | 1500 RPM | 1500 RPM | 1500 RPM | 1500 RPM | 1500 RPM |
| Frame Size | 355 | 355 | 355 | 355 | 355 | 355 | 355 | 355 | 355 | 355 | 355 |
| Efficiency | IE2 | IE3 | IE3 | IE4 | IE4 | IE3 | IE4 | IE2 | IE2 | IE2 | IE2 |
| Country | Germania | — | — | — | — | — | — | — | — | — | — |
| Price | On request | On request | On request | On request | On request | On request | On request | On request | On request | On request | On request |
| YOU ARE HERE |
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FAQ — HELMKE Helmke DOR355M-04-2G
The HELMKE Helmke DOR355M-04-2G belongs to efficiency class IE2 as per IEC 60034-30-1. IE2 (High Efficiency) motors offer significant energy savings over standard IE1 motors.
The HELMKE Helmke DOR355M-04-2G is available in the following mounting configurations: B3, B35, B5. Each variant has its own article number and may have different lead times.
Delivery to Germany, France, Italy and other EU countries typically takes 5–15 business days from stock. Contact us for exact lead time for this specific model.
Yes. HELMKE electric motors comply with EU directives including CE marking, RoHS, and REACH regulations. All motors meet IEC/EN 60034 standards. Documentation is available upon request.
Yes — 20 compatible analog model(s) are listed on this page. They share the same frame size, pole count, and 250 kW power rating. Use our analog comparison table below for a detailed spec-by-spec comparison.
INDASTRA accepts international bank transfer (SWIFT/SEPA), Letters of Credit (L/C), and advance payment. All prices are in EUR excluding VAT. A formal invoice is provided for every order.
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