NORD Drivesystems BU0560 - Manual (Page 4)

NORDAC SK 500E - ERS Information Electrical data
4 Subject to technical amendments BU0560_ERS_GB-0512
The "ERS" special versions are only available for the following devices/powers:
SK 500E-750-323-A-ERS 275410076 SK 511E-750-323-A-ERS 275770076
SK 500E-111-323-A-ERS 275410111
SK 500E-221-323-A-ERS 275410221 SK 511E-221-323-A-ERS 275770221
SK 500E-111-340-A-ERS 275420111
SK 500E-301-340-A-ERS 275420301
Electrical data 230V
Size 1 / 2
Device type: SK 5xxE… -750-323-A-ERS -111-323-A-ERS -221-323-A-ERS
Nominal motor power
(4-pole standard motor) 230V 0.75 kW 1.1 kW 2.2 kW
240V 1 hp 1½ hp 3 hp
Mains phases Number 1/3 AC
Mains voltage 200 - 240 V, ±10 %, 47 ... 63 Hz
Output voltage 3 AC 0 - mains voltage
Nominal output current rms [A] 4.0 5.5 9.0
Min. brake resistor Accessories 100  75  43 
Typical input current
1 / 3 AC
rms [A]
8.7 / 5.6 12.0 / 7.7 19.6 / 13.3
Rec. mains fuse
1 / 3 AC
slow-blowing
16 A / 10 A 16 A / 16 A 25 A / 20 A
Type of ventilation Free convection
Fan cooling, temperature controlled
Switching thresholds: ON ≈ 57°C OFF ≈ 47°C
Weight Approx. [kg] 1.8 2.7
Electrical data 400V
Size 2 / 3
Device type: SK 5xxE… -111-340-A-ERS -301-340-A-ERS
Nominal motor power
(4-pole standard motor) 400V 1.1 kW 3.0 kW
480V 1½ hp 4 hp
Mains phases Number 3 AC
Mains voltage 380 … 480 V, -20% / +10 %, 47 ... 63 Hz
Output voltage 3 AC 0 - mains voltage
Nominal output current rms [A] 3.1 7.5
Min. brake resistor Accessories 220  91 
Typical input current
1 / 3 AC
rms [A]
4.3 12.5
Rec. mains fuse
1 / 3 AC
slow-blowing
10 A 16 A
Type of ventilation
Fan cooling, temperature controlled
Switching thresholds: ON ≈ 57°C OFF ≈ 47°C
Weight Approx. [kg] 1.8 2.7
Note:
Up to week of manufacture 48/08, SK 500E-111-340-A-ERS frequency inverters were produced with
free convection (without fan). Since week 49/08 a fan has also been incorporated in units of this size to
provide better dissipation of heat.