EM730-015-3B

EM730-015-3B is the 15 kW, three-phase 380 V model of SINEE's EM730 general-purpose drive, with a braking unit built in. Choose it by motor current: SINEE rates it 32 A for heavy duty and 36 A for light duty. Do not confuse it with EM730-015-2/2B, the 220 V model of the same power, which is rated 60 A and 70 A and comes in a much larger housing. The braking-resistor recommendation and the heavy-duty overload figures changed between SINEE's two published manuals, so ask which revision applies to the drive you receive.

Model code

EM730 series · 015 = 15 kW motor power · 3 = three-phase 380 V input class · B = built-in braking unit (manual p.21). SINEE's selection guide lists separate S and BS suffixes for STO; this code has neither

Rated output current

15 kW; 32 A heavy duty, 36 A light duty (Table 1-1, p.11 of the newest manual; same in the V100 guide, p.8)

Supply

Three-phase 340 V −10% to 460 V +10%, 50–60 Hz ±5%, voltage unbalance <3%; maximum output voltage equals the input voltage

Not the 220 V model

EM730-015-2/2B is the 200–240 V model of the same 15 kW: 60 A heavy duty, 70 A light duty, 245 × 454 × 205 mm. Check the voltage digit on the quotation

Overload

Newest manual: 150% of heavy-duty current for 60 s; light duty 120% for 60 s, 150% for 10 s, 180% for 2 s. The V100 guide also printed 180% for 10 s and 200% for 2 s on heavy duty; the newer manual drops those two

Control

V/F and sensorless vector (SVC); speed range 1:50 (V/F), 1:200 (SVC); speed accuracy ±0.2% of rated synchronous speed. No closed-loop encoder mode is listed for EM730

Dimensions

W 136 × H 250 × D 169 mm (D2 174 mm); mounting holes 125 × 240 mm, four Ø5.5 mm (Table 2-2, p.26); shared with EM730-011-3B. Weight is not given in either manual

Braking resistor

Newest manual: ≥18 Ω, ≥2000 W (p.381). V100 guide: ≥30 Ω, ≥2000 W (p.58). Confirm the value against the delivered unit's manual before buying the resistor

Carrier frequency

Default 2.0 kHz; adjustable 1.0–8.0 kHz for 11–45 kW models (function code table, p.173)

Environment

−10 to +50 °C, derate 1.5% per °C above 50 °C (newest manual; the V100 table and SINEE's product page say 3% per °C); derate 1% per 100 m above 1,000 m, 3,000 m maximum; IP20, IP21 with plastic baffle; forced-air cooling

Manufacturer

深圳市正弦电气股份有限公司 (Shenzhen SINE Electric Co., Ltd., brand SINEE), founded 2003, STAR Market code 688395. Head office: Runzhi R&D Center, No. 5 Runfang Road, Xin'an Sub-district, Bao'an District, Shenzhen. SINEE states ISO 9001 certification from 2008; no certificate number is published

Questions for this product range

1. Confirm the code is EM730-015-3B (380 V, built-in braking) and not EM730-015-2B or an S/BS variant with STO.
2. Which manual revision ships with the drive, and which braking-resistor value (≥18 Ω or ≥30 Ω) applies to it?
3. Will the motor run on the heavy-duty 32 A or the light-duty 36 A rating, and what overload does the load need?
4. Is a C3 EMC filter fitted? SINEE's product page states one; the manuals do not.
5. What does the unit weigh, and what is the rated input current? Neither manual gives them.
6. Ambient temperature and altitude at the cabinet, so the derating can be checked.

Source documents

Source notes checked 2026-10-30. See the linked manufacturer documents for model and option details.