Features	SPDP - Squirrel Cage Induction motors [MARATHON 'PTSC-I' MOTORS]	SPDP - Slipring Induction Motors [MARATHON 'PTSR-I' MOTORS]
Type	SCREEN PROTECTED SQUIRREL CAGE	SCREEN PROTECTED SLIP RING
Power Supply	AC 3 PHASE, 415 VOLTS +/- 10%, 50 HZ +/- 5%, COMBINED VARIATION +/-10%	AC 3 PHASE, 415 VOLTS +/- 10%, 50 HZ +/- 5%, COMBINED VARIATION +/-10%
Insulation	CLASS 'F' WITH TEMPERATURE RISE LIMITED TO CLASS 'B'	CLASS 'F/F' WITH TEMPERATURE RISE LIMITED TO CLASS 'B'
Ambient	45 °C	45 °C
Altitude	LESS THAN 1000 MTR. ABOVE M.S.L.	LESS THAN 1000 MTR. ABOVE M.S.L.
Mounting	HORIZONTAL FOOT MOUNTED (B3)	HORIZONTAL FOOT MOUNTED (B3)
Performance	CONFORMING TO IS :325	CONFORMING TO IS :325
Frame Dimension	CONFORMING TO IS :1231	CONFORMING TO IS :1231
Protection	IP-21 (IS :4691)	IP-21 (IS :4691)

Vertical Hollow Shaft LT Motors :

   

Features :

Non-reversible type.

Bearings suitable for thrust load from pump.

Application : Non-reversible Turbine Pump .

RW series of large Slipring Motors :

   

Design Features :

Stator wound with rectangular conductors rw 120 onwards.

Bar wave winding for rotors rw105 onwards.

Class 'f' insulation system - temperature rise class 'b' limit. class 'h' option available.

Rotor overhang banding with resiglass tape.

Forced ventilation system (ic01) through ven holes in stator slots.

High pull out torque.

Designed to withstand normal thermal abuses at rolling mills, sugar plants.