The explosion-proof motors that meet the ExdIIBT4 explosion-proof rating and are manufactured by TECO include TEBY (GB3/IE3), TEB4 (GB2/IE4), and TEB5 (GB1/IE5). Among these, TEBY has obtained three major certifications: GB, IECEx, and ATEX.
| Model | TEBY (AFBY/AFBU) | Brand | TECO |
Technical Data of TECO ExdIIBT4 Explosion-Proof Motor：
- Type: Flameproof Three-Phase Asynchronous Motor
- Explosion-Proof Certifications: ATEX, IECEx, CCC, GB
- Rated Voltage: 380V or other voltages (below 690V)
- Rated Frequency: 50Hz, 60Hz
- Output Power: 0.18kW～355kW
- Duty Cycle: Continuous duty cycle SF1.0, optional (SF1.0～1.3)
- Frame Size: 80M～355 (note: “355KW” in the original text is a possible notation error; motor frame sizes are typically represented by numbers like “355” rather than power units, so it is adjusted to “355” here for compliance with industry expression habits)
- Protection Degree:
- Exd IIB T4 Gb: IP55
- Exd IIC T4 Gb (Frame #80～255), Exd II (H2) Gb (Frame #250～355): IP55, IP56, IP65, IP66
- Cooling Method: IC411 (IC stands for “International Cooling Method Code”; IC411 refers to self-ventilated cooling with an internal fan on the rotor and external cooling air flowing axially)
- Insulation Class: Class F Insulation
- Temperature Rise: Temperature rise of Class B stator winding: When measured by the resistance method and under a Service Factor (S.F) of 1.0, the temperature rise shall not exceed 80K
Applicable Conditions：
- Power Supply Conditions: Voltage fluctuation within ±10%, frequency fluctuation within ±5%, maximum comprehensive fluctuation of voltage and frequency within 5% (with frequency fluctuation not exceeding ±5%).
- Application Site: Zone 1 and Zone 2 of explosive gas environments.
- Ambient Temperature: -20～50℃ (other ambient temperatures available as an option).
- Ambient Humidity: Relative humidity below 90% (condensation is not allowed).
- Altitude: Below 1000 meters above sea level.
- Transmission Method: Pulley or coupling. However, for 2-pole motors with power of 45kW and above, only coupling transmission can be used.
- Rotation Direction: Bidirectional rotation is possible. When the power supply phase sequence is consistent with the marking letters on the motor outlet terminal, the rotation direction is clockwise when facing the shaft extension end.
- Starting Method: Direct-on-line starting (full-voltage starting) or Y-Δ starting (star-delta starting).
Requirements: When installing the coupling or pulley, use the tapped hole at the shaft end for press-fitting installation. It is prohibited to install by striking the shaft end with external force. For special requirements, please consult separately.