LSES : High efficiency motor - Fixed speed LSHT/FLSHT : High temperature Smoke extraction FLS : Cast iron housing - Fixed speed LS : Aluminium alloy housing - Fixed speed LS Zone 22 : Aluminium alloy housing - Dust ATEX Zone 22 FLSES : Energy savings motor - Fixed speed FLSC : Corrobloc finish motor - Fixed speed FLSB/FLSLB : Slip ring wound rotor motor - Fixed speed PLS : Open Drip Proof motor IP 23 - Fixed speed LSMV : Variable speed motor LSiA : Food and beverage applications motor LS MO : Machine tool applications motor LS FA : High ambient temperatures Ovens LS/FLS 85