UA50 3-pole contactors for capacitor switching, can be used for the switching of capacitor banks whose inrush current peaks are less than or equal to 100 times nominal rms current. The table below gives the permissible powers according to operational voltage and temperature close to the contactor. It also specifies the maximum peak current Î values accepted by the contactor. The capacitors must be discharged (maximum residual voltage at terminals ≤ 50 V) before being re-energized when the contactors are making. In these conditions, electrical durability of contactors is equal to 100 000 operating cycles. The UA.. series 3-pole contactors are of the block type design. – Main poles: 3 main poles – Control circuit: AC operated with laminated magnet circuit – Accessories: a wide range of accessories is available.
Categories
Products » Low Voltage Products and Systems » Control Products » Contactors » Block Contactors » UA and UA..RA Contactors
(230 / 240 V) 40 °C, 50 / 60 Hz 20 kvar
(230 / 240 V) 55 °C, 50 / 60 Hz 20 kvar
(230 / 240 V) 70 °C, 50 / 60 Hz 19 kvar
(400 / 415 V) 40 °C, 50 / 60 Hz 33 kvar
(400 / 415 V) 70 °C, 50 / 60 Hz 32 kvar
(400 / 415 V) 55 °C, 50 / 60 Hz 33 kvar
(440 V) 40 °C, 50 / 60 Hz 36 kvar
(440 V) 55 °C, 50 / 60 Hz 36 kvar
(440 V) 70 °C, 50 / 60 Hz 35 kvar
(500 / 550 V), 40 °C, 50 / 60 Hz 40 kvar
(500 / 550 V) 55 °C, 50 / 60 Hz 40 kvar
(500 / 550 V) 70 °C, 50 / 60 Hz 40 kvar
(690 V) 40 °C, 50 / 60 Hz 55 kvar
(690 V) 55 °C, 50 / 60 Hz 55 kvar
(690 V) 70 °C, 50 / 60 Hz 52 kvar
Maximum Breaking Capacity:
cos phi=0.45 (cos phi=0.35 for Ie > 100 A) at 440 V 1300 A
cos phi=0.45 (cos phi=0.35 for Ie > 100 A) at 690 V 630 A
Rated Insulation Voltage (Ui):
acc. to IEC 60947-4-1 and VDE 0110 (Gr. C) 1000 V
acc. to UL/CSA 600 V
Rated Impulse Withstand Voltage (Uimp):
8 kV
Mechanical Durability:
10 million
Maximum Mechanical Switching Frequency:
3600 cycles per hour
Rated Control Circuit Voltage (Uc):
50 Hz 220 … 230 V
60 Hz 230 … 240 V
Coil Consumption:
Average Holding Value 50 / 60 Hz 18 5.5 V·A
Average Pull-in Value 50 Hz 180 V·A
Average Pull-in Value 60 Hz 180 V·A
Holding at Max. Rated Control Circuit Voltage 50 Hz 18 5.5 V·A
Holding at Max. Rated Control Circuit Voltage 60 Hz 18 5.5 V·A
Pull-in at Max. Rated Control Circuit Voltage 50 Hz 180 V·A
Pull-in at Max. Rated Control Circuit Voltage 60 Hz 210 V·A
Operate Time:
Between Coil De-energization and NO Contact Opening 4 … 11 ms
Between Coil Energization and NO Contact Closing 8 … 27 ms
Connecting Capacity Main Circuit:
Flexible with Cable End 6 … 16 mm²
Rigid Cable 6 … 25 mm²
Connecting Capacity Auxiliary Circuit:
Flexible with Cable End 0.75 … 2.5 mm²
Rigid Cable 1 … 4 mm²
Degree of Protection:
acc. to IEC 60529, IEC 60947-1, EN 60529 Main Terminals IP10
Connecting Terminals (delivered in open position) Main Poles:
M 6 (+,-) pozidriv 2 screws with 1x (13 x 10 mm) connector
Terminal Type:
Screw Terminals
Reviews
There are no reviews yet.
Only logged in customers who have purchased this product may leave a review.
Cap Contactors
Cap Contactors
Reviews
There are no reviews yet.