1PH8 for SINAMICS S120 for cranes Siemens

Обзор



1PH8 three‑phase motor, shaft height 355

The innovations in the field of modern crane installations place higher and higher demands on compact asynchronous motors.

The compact asynchronous motor 1PH8 of shaft height 355 covers the increased performance requirements, e.g. for intermittent duty S3‑40 % with up to 1.97 MW.

This motor serie is a converter solution which has been developed for use in conjunction with the SINAMICS S120 drive system. The 1PH8 asynchronous motors have the following features:

  • Forced ventilated asynchronous motors with squirrel‑cage rotor with IP55 degree of protection. The motors are ventilated as standard by a radial, externally mounted fan unit. With the "enhanced corrosion protection" option, the motors can also be installed outdoors.
  • Forced ventilated asynchronous motors with squirrel‑cage rotor with IP23 degree of protection. These motors are also ventilated as standard by a radial, externally mounted fan unit. These motors are particularly suitable for installation in power houses.

Особенности


  • High power density with small motor dimensions
  • Wide speed control ranges
  • Speed down to zero without reducing the torque (constant torque characteristic)
  • High rotational accuracy, even at the lowest speeds
  • Fitted as standard with regreasing unit and insulated NDE bearing
  • Optimized for converter‑fed operation on SINAMICS
  • Large selection of options

Технические данные



Insulation of the stator winding
according to EN 60034‑1 (IEC 60034‑1)

Utilization to temperature class 155 (F)
for a coolant temperature of up to 40 °C

Cooling
in accordance with EN 60034‑6 (IEC 60034‑6)

Radial fan NDE top mounted
(intake from NDE)

Temperature monitoring

KTY 84 temperature sensor in the stator winding
additional KTY 84 as spare

Motor supply voltage

(for technical data, see the ventilation data and sound pressure level)

400 V 3 AC, 50/60 Hz
480 V 3 AC, 60 Hz

Type of construction
according to EN 60034‑7 (IEC 60034‑7)

IM B3

Degree of protection
according to EN 60034‑5 (IEC 60034‑5)

IP23 or IP55

Shaft extension on the drive end
according to DIN 748‑3 (IEC 60072‑1)

Feather key
full or half‑key balancing

Shaft and flange accuracy
according to (IEC 60072‑1)1)

Tolerance N (normal)
Tolerance R (reduced)

Vibration severity
according to Siemens/EN 60034‑14 (IEC 60034‑14)

Level A (normal)
Level R/A (reduced)

Sound pressure level
according to DIN EN ISO 1680

Tolerance +3 dB

Sound pressure level 85 dB(A)

Maximum speeds

2800 rpm

External encoder systems

Incremental encoder HTL 1024 S/R POG 10 (Baumer‑Hübner)
Incremental encoder HTL 1024 S/R HOG 28 (Baumer‑Hübner)

Connection

Terminal box NDE right or DE top

Paint finish

Standard paint finish, anthracite, RAL 7016

Options

Refer to Options and Selection and ordering data



1) Rotational accuracy of shaft extension, concentricity of spigot and shaft and perpendicularity of mounting face of flange to shaft.

S/R = signals/revolution

Notes:

The rated motor data is specified in the selection and ordering data for a nominal pulse frequency of 2.5 kHz.

Ventilation data and sound pressure level

Motor version
Forced ventilation

(see 8th and 11th positions
in the Order No.)

Fan motor:

Direction of air‑flow

Sound pressure level LpA (1 m)
Motor + external fan,
rated load,
tolerance +3 dB,
nominal pulse
frequency 2.5 kHz

Volume of air
min.

Current consumption at

400 V/50 Hz
(± 10 %)

400 V/60 Hz
(± 10 %)

460 V/60 Hz
(± 10 %)

 

A

A

A

 

dB

m3/s

1PH8 motors, shaft height 355

1PH835.-7..1

(asynchronous version,
external fan with noise level of 85 dB(A),
IP55 degree of protection)

8.2

7.9

7.9

NDE → DE
DE → NDE

85

1

1PH835.-7..4

(asynchronous version,
external fan with noise level of 85 dB(A),
IP23 degree of protection)

8.2

13.21)

10.92)

NDE → DE
DE → NDE

85

1.3



1) Special fan for operation at 460 V/60 Hz (± 10 %), option: R60 (see Selection and ordering data/Order No. supplements).

2) Special fan for operation at 400 V/60 Hz (± 10 %), option: R61 (see Selection and ordering data/Order No. supplements).

Important note:

For 1PH8/SH 355/IP23/85 dB(A) motors, a special fan motor must be ordered using option R60/R61 for operating the external fan on a supply voltage of 60 Hz (see Selection and ordering data/Order No. supplements).

Terminal box, max. connectable conductor cross sections

Terminal box type

(see selection and
ordering data for
details)

Cable entry
(power)

Cable entry
(external signals)

Outer cable diameter, max.1)

Number of
main terminals

Cross section, max.
per terminal

Current, max.
per terminal2)

 

 

 

mm

 

mm2

A

1PH8 motors, shaft height 355

1XB7712-P013)

3 × M63 × 1.5

1 × M20 × 1.5 4)
1 × M25 × 1.5 5)

53

Phases: 3 × 4 M16
Grounding: 4 × M16

3 × 95

450

1XB7712-P033)

4 × M75 × 1.5

1 × M20 × 1.5 4)
1 × M25 × 1.5 5)

68

Phases: 3 × 4 M16
Grounding: 4 × M16

4 × 185

1150

1XB7820-P00

Not drilled

1 × M20 × 1.5 4)
1 × M25 × 1.5 5)

–

Phases: 2 × 3 × 4 M16
Grounding: 8 × M16

8 × 240

2100



1) Dependent on the design of the metric cable gland.

2) Current carrying capacity based on IEC 60364‑5‑52, routing type C.

3) For terminal box type 1XB7712-P.., depending on the standard, other cable entries (power) can be ordered using P options (see Selection andordering data/Order No. supplements).

4) Mounted on left side of terminal box (viewed towards cable entries).

5) Mounted on right side of terminal box (viewed toward cable entries).