Industrial motor Ex e
Loher Motors with type of protection “e” (increase safety) distinguish themselves as the various components are optimally harmonized with one another (winding / rotor and components). This is the reason that special construction regulations also apply for these motors. When compared to motors with a flameproof enclosure, which makes any ignition non-hazardous, the protection philosophy for these motors is to avoid ignition, even when a fault situation occurs. The permissible winding temperatures are reduced, which in turn results in a longer lifetime and a low risk of ignition. Fault situation “locked rotor”: Loher Ex e motors set themselves apart as a result of the higher (than specified) safe locked rotor time – tE – this makes drive monitoring simpler, safer and uncritical. “Increased safety” therefore also involves a longer service life and especially a higher degree of reliability and operational safety.
Features
- Regreasing system from FS 160 – SPM nipple from FS 132 – stainless steel screws/bolts – larger connection system
- Additional terminal box from FS 132 – anti-condensation heating from FS 132 – condensation water drain from FS 132
- PTC thermistor or Pt100 as additional protection (TMS)
- Can also be supplied for 60 Hz (adapted winding – increased power rating)
- All motors with insulating material class H
- All motors are available with an electrical design according to “NEMA Standards Publication No MG1”
- Flanged motors can be designed and implemented with flange and shaft end in accordance with NEMA
- Special shaft end, backstop, special paint finishes
- Low temperatures down to -60 °C
- Available in temperature class T4 and also for increased ambient temperatures
- Special demands are realized => electric motor design adapted to special requirements
- Larger connection system => adapted to the existing electrical system
- Parameter-optimized motors => result in high efficiencies and high power factor with a low noise level
- In comparison to the standard and other Ex motors: Lower winding temperature limits => an even longer service life
- Quality components are used => Extremely high operational reliability
Customer benefits
- Special demands are realized => electric motor design adapted to special requirements
- Larger connection system => adapted to the existing electrical system
- Parameter-optimized motors => result in high efficiencies and high power factor with a low noise level
- In comparison to the standard and other Ex motors: Lower winding temperature limits => an even longer service life
- Quality components are used => Extremely high operational reliability
Typical areas of application
Used in Ex-Zone 2 for:
- Pumps
- Compressors
- Fans
- Extruders
- Motors in process systems