Schneider Electric Ireland - Miscellaneous
VW3A7742
BRAKE RESIS 28 OHMS 0,96 KW IP20
Trade Price
POA
Per
1
Unit
Pack Quantity
Information
This braking resistor is an option for variable speed drives of Altivar range. It has an Ohmic value of 28Ohms at 20°C. This braking resistor allows your variable speed drive to operate while braking to a standstill, by dissipating the braking energy and enables maximum transient braking torque. Its protection index is IP20. It weighs 4kg. This resistor is designed to be mounted on the outside of the enclosure, but should not inhibit natural cooling, air inlets and outlets must not be obstructed in any way.
Technical Specifications
range compatibility
Altivar Process ATV900 Altivar Machine ATV340
Product or component type
Braking resistor
Ohmic value
28 Ohm
[Ue] rated operational voltage
24 V DC 250 V AC
Product compatibility
Variable speed drive ATV930 wall mount 11 kW 380...480 V medium cycle Variable speed drive ATV930 wall mount 15 kW 380...480 V medium cycle Variable speed drive ATV950 wall mount 11 kW 380...480 V medium cycle Variable speed drive ATV950 wall mount 15 kW 380...480 V medium cycle Variable speed drive ATV930 wall mount 3 kW 200...240 V severe cycle Variable speed drive ATV340 7.5 kW 380...480 V medium cycle Variable speed drive ATV340 11 kW 380...480 V medium cycle Variable speed drive ATV930 15 kW 500...690 V medium cycle Variable speed drive ATV930 18.5 kW 500...690 V medium cycle Variable speed drive ATV930 20 hp 600 V medium cycle Variable speed drive ATV930 25 hp 600 V medium cycle
Duty cycle
Severe cycle (heavy duty) <54 s braking with 100 % braking torque for a 120 s cycle Medium cycle (normal duty) <4 s braking with 135 % braking torque for a 40 s cycle Medium cycle (heavy duty) <4 s braking with 165 % braking torque for a 40 s cycle Severe cycle (heavy duty) <6 s braking with 165 % braking torque for a 120 s cycle
Average power available
0.96 kW at 50 °C
Electrical connection
terminal, connection capacity: <= 10 mm² / AWG 8 for drive terminal, connection capacity: <= 2.5 mm² / AWG 12 for temperature control switch
Protection type
Thermal protection via drive or temperature control switch at 120 °C
Width
190 mm
height
570 mm
Depth
180 mm
Net weight
4.2 kg
IP degree of protection
IP20
Ambient air temperature for storage
-25…70 °C
Ambient air temperature for operation
0…50 °C
Unit Type of Package 1
PCE
Number of Units in Package 1
1
Package 1 Height
25.500 cm
Package 1 Width
20.000 cm
Package 1 Length
58.000 cm
Package 1 Weight
4.902 kg
Unit Type of Package 2
P06
Number of Units in Package 2
8
Package 2 Height
75.000 cm
Package 2 Width
60.000 cm
Package 2 Length
80.000 cm
Package 2 Weight
47.716 kg
Warranty
18 months
Document Links
Datasheet