Up to NEMA 449T Frame / 200 HP / 2, 4, 6, 8 Pole
ABB SD100 and SD200 motors are three-phase, cast iron NEMA motors built for continuous duty where dirt, moisture, chemicals and vibration shorten the life of a standard motor: chemical and petrochemical plant, oil and gas, pulp and paper, mining and water treatment. Both are NEMA Premium® efficient, suitable for inverter use and certified for Division 2 hazardous locations.
The SD severe duty range came to ABB with the Siemens low voltage NEMA motor business in 2023 and continues under the ABB name. A severe duty motor goes further than a general purpose motor: cast iron frame and bearing housings, better sealing, a corrosion-resistant finish and a higher-strength shaft, so it keeps running in plant where a standard TEFC motor would wear out early.
The range splits by size, with an IEEE 841 version of each:
Both lines are certified for Class I and Class II, Division 2 hazardous locations. Where the area is classified Division 1, an explosion proof motor is needed instead.
| Specification | SD100 | SD200 |
|---|---|---|
| Standard | NEMA MG1 | NEMA MG1 |
| Construction | Cast iron frame and bearing housings | Heavy-duty cast iron frame |
| Power range | 1–100 HP (0.75–75 kW) | 75–800 HP (56–597 kW): 125–800 HP 2 and 4 pole; 100–600 HP 6 pole; 75–250 HP 8 pole |
| NEMA frame sizes | 143T–405T [confirm] | 444T–5013 |
| Poles / speed (60 Hz) | 2, 4, 6, 8 pole (3600, 1800, 1200, 900 rpm) | 2, 4, 6, 8 pole (3600, 1800, 1200, 900 rpm) |
| Voltage (60 Hz) | 230/460 V (140–250 frames), 460 V, 575 V | See datasheet [confirm] |
| Ingress protection | IP55 (IP56 on IEEE 841 version) | IP55 (IP56 on SD200 841) |
| Efficiency | NEMA Premium® (MG1 Table 12-12) | NEMA Premium®; NEMA Super Premium® available |
| Insulation | Class F, Class B rise at 1.0 SF | Class H, Class B rise at 1.0 SF |
| Service factor | 1.15 | 1.15 [confirm] |
| Hazardous locations | Class I, Div 2, Groups A–D (140T–400T); Class II, Div 2, Groups F and G (360T–400T; smaller frames on request) | Class I, Div 2, Groups A–D; Class II, Div 2, Groups F and G |
| Certification | UR component recognised, CSA certified, NRTL certified for hazardous locations | UR component recognised, CSA certified, NRTL certified for hazardous locations |
| Inverter duty | NEMA MG1 Part 31.4.4.2; 20:1 variable torque, 4:1 constant torque | NEMA MG1 Part 31; 20:1 variable torque; 4:1 constant torque (2:1 on 700–800 HP) |
| Shaft | C-1045 high-strength steel | C-4140 high-strength steel |
| Bearings | Regreasable and sealed, all frame sizes | See datasheet |
| Conduit box | See datasheet | Oversized |
| Finish | Paint salt-spray tested for 400+ hours | See datasheet |
| IEEE 841 version | SD100 IEEE 841: 1–100 HP, IP56, bearing isolators both ends, 0.06 in/s vibration, test report, 5-year warranty | SD200 841: 75–500 HP, frames 444–5013, IP56, bearing isolators both ends, 0.06 in/s vibration, test report, 5-year warranty |
| Manufacturer's warranty | [confirm] | [confirm] |
For technical information, brochures and further product details, visit our downloads page.
A severe duty motor is a totally enclosed fan cooled (TEFC) motor built for harsher conditions than a general purpose motor. It typically has a cast iron frame and bearing housings, better seals, corrosion-resistant paint and hardware, and a stronger shaft. That lets it run continuously in dirty, wet or corrosive plant such as chemical works, mines, paper mills and water treatment sites.
Size and construction. The SD100 covers 1–100 HP with Class F insulation and a C-1045 steel shaft. The SD200 covers 75–800 HP in frames 444T to 5013, with Class H insulation, a C-4140 steel shaft and an oversized conduit box. Both are cast iron, NEMA Premium® efficient and certified for Division 2 hazardous locations.
IEEE 841 is the petroleum and chemical industry standard for severe duty TEFC induction motors up to 500 HP. It sets tighter limits on vibration, bearing life, temperature rise and sealing than a standard severe duty motor. The ABB SD100 IEEE 841 and SD200 841 meet IEEE 841-2021, with IP56 sealing, bearing isolators on both ends, a 0.06 in/s vibration limit and a test report with every motor.
The SD100 and SD200 are certified for Division 2: Class I, Groups A–D (gases) and Class II, Groups F and G (dusts), with frame limits on the SD100. Division 2 covers areas where a flammable atmosphere is present only under abnormal conditions. For Division 1 areas, use an explosion proof motor. Class and Division is the North American system; on a UK site, the hazardous area classification decides what equipment is acceptable.
It is the same product line. ABB acquired the Siemens low voltage NEMA motor business in 2023 and the SD100 continues under the ABB name. The range has been revised since: ABB now lists the SD100 up to 100 HP, with larger ratings in the SD200. Check the part number on the original Siemens nameplate against the current ABB datasheet before ordering a replacement.
NEMA motors are designed for 60 Hz supplies. Some ratings carry a dual 60/50 Hz nameplate, but output, speed and voltage at 50 Hz differ from the 60 Hz rating, so check the datasheet for the specific motor and supply.
Send us the part number from the motor nameplate, or the horsepower, speed, frame, voltage and duty, for a quote. Call 01924 411921 or email sales@betech.co.uk.
