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1MJ7253-2CB

Producer: SIEMENS

1MJ7253-2CB

Three-phase squirrel-cage ex-proof motor for zone 1. Protection degree EEx de IIC T4 or EE x d IIC T4 (with option K53). Suitable for converter driven operation (only with option A15 - 4xPTC thermistor or A16 - 8x PTC thermistor installed).

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Product specifications
power (kW)	55
speed (rpm)	2 965
number of poles (pole)	2
motor housing	cast iron
protection	IP55
motor frame size	250M
insulation class	F
basic voltage (V)	400/690 D/Y 50Hz
rated imput current (A)	93,0/53,91
output torque (Nm)	177
weight (kg)	445
ATEX certification	II G EEx de IIC T1-T4
motor load	S1
bearings DE/NDE	6215 C3 / 6215 C3


Polarity	Efficiency	Ex-proof	Operation	Avail.	Material	Status

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Configuration

Documentation

Description

Dimensions

Accessories

Documentation

Complete catalogue: PDF Complete catalogue (CZ)

Dimensions

Description

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	1 - 400/230V Y/D 50Hz, 460VY 60Hz (basic voltage up to 3kW)
	5 - 500VD 50Hz
	6 - 400/690V D/Y 50Hz, 460VD 60Hz (basic voltage from 3kW)
	9 - other voltage - choose in config. bellow

	0 - IMB3 - footstanding design
	1 - IMB5 - flange design (large flange)
	4 - IMV1 - flange design (large flange) with canopy for vertical position
	6 - IMB35 - combined design foot-standing with large flange
	9 - other design - choose in configuration below

	- basic design - no thermal protection
	A11 - 3x PTC thermistor in windings
	A12 - 6x PTC thermistor in windings
	A15 - 4xPTC or 3xPTC thermistor for converter-fed operation
	A16 - 8xPTC or 6xPTC thermistor for converter-fed operation

	- standard voltage (acc. to motor design)
	L1C - 3AC 50Hz 415VY
	L1D - 3AC 50Hz 415VD
	L1R - 3AC 50Hz 220VD/380VY
	L1R - 3AC 50Hz 380VD/660VY
	L2A - 3AC 60Hz 220VD/380VY (50Hz power output)
	L2B - 3AC 60Hz 220VD/380VY (60Hz power output)
	L2C - 3AC 60Hz 380VD/660VY (50Hz power output)
	L2D - 3AC 60Hz 380VD/660VY (60Hz power output)
	L2E - 3AC 60Hz 460VY (60Hz power output)
	L2F - 3AC 60Hz 460VD (60Hz power output)
	L2L - 3AC 60Hz 575VY (60Hz power output)
	L2M - 3AC 60Hz 575VD (60Hz power output)
	L2Q - 3AC 60Hz 440VY (50Hz power output)
	L2R - 3AC 60Hz 440VD (50Hz power output)
	L2S - 3AC 60Hz 460VY (50Hz power output)
	L2T - 3AC 60Hz 460VD (50Hz power output)
	L2U - 3AC 60Hz 575VY (50Hz power output)
	L2V - 3AC 60Hz 575VD (50Hz power output)
	L2W - 3AC 60Hz 440VY (60Hz power output)
	L2X - 3AC 60Hz 440VD (60Hz power output)

	- basic design (terminal box entry on right side)
	K83 - rotation of the connection box through 90°, entry from DE
	K84 - rotation of the connection box through 90°, entry from NDE
	K85 - rotation of the connection box through 180°

1MJ7253-2CB

Product design (mandatory options):

Motor voltage

Motor design

Product configuration (voluntary options):

thermal protection

modular extensions

other voltages

bearings

insulated bearing catridge

regreasing device

test certificates

national certificates and standards

protection degree

terminal box position

terminal inputs position

shaft extension

rotor balancing

windings heating

windings and insulation, increased ambient tempera

increased air humidity

connection box Ex protection

other motor design

Documentation

Dimensions

Description

	- bearings without insulation
	L27 - insulated bearing cartridge (NDE)

	- without test certificates
	B02 - inspection certificate 3.1 in acc. with EN10 204

	- basic design
	K50 - IP65 degree of protection
	K52 - IP56 degree of protection (non-heavy-sea)

	- basic design - terminal box on top
	K09 - terminal box on right side
	K10 - terminal box on left side

	- basic design - no heating
	K45 - anti-condensation heaters for 230V
	K46 - anti-condensation heaters for 115V

	- basic design (0-30g water per m3 of air)
	C19 - increased air humidity 30 - 60g water per m3 of air
	C26 - increased air humidity 60 - 100g water per m3 of air

	- basic termail box protection (EEx e IIC)
	K53 - terminal box incerased protection EEx d IIC

	- motor design acc. to standard design selection
	M1F - IMV5 with canopy
	M1G - IMV3 (large flange)

	- basic design (grade A)
	K02 - vibration severity grade B