Page 108 - Motor_protection_and_control_Manual_motor_starters_ contactors

B6, B7, BC6, BC7, TBC7 3- and 4-pole mini contactors
VB6, VB7, VBC6, VBC7 3- and 4-pole mini reversing contactors

Technical data

Main pole – Utilization characteristics according to UL/NEMA/CSA
Contactor types AC operated B6, VB6, VB6A B7, VB7, VB7A
DC operated BC6, VBC6, VBC6A BC7, TBC7, VBC7, VBC7A
Standards UL 508, CSA C22.2 N°14
Maximum operational voltage 600 V
UL/CSA general use rating 12 A / 300 V 16 A / 600 V
UL/CSA maximum 1-phase motor rating
Full load current 120 V AC 5.8 A 13.8 A
3 240 V AC 4.9 A 10.0 A
Horse power rating 120 V AC 0.25 hp 0.75 hp
240 V AC 0.5 hp 1.5 hp
UL/CSA maximum 3-phase motor rating
Full load current 1) 200 / 208 V AC 4.8 / 4.6 A 7.8 / 10.6 A
220-240 V AC 6.8 A 9.6 A
440-480 V AC 4.8 A 7.6 A
550-600 V AC 1.7 A 6.1 A
Horse power rating 1) 200 / 208 V AC 1 hp 2 / 3 hp
220-240 V AC 2 hp 3 hp
440-480 V AC 3 hp 5 hp
550-600 V AC 1 hp 5 hp
Resistive Heating 300 V per pole 8 A 8 A
Incandescent Lamps 300 V per pole 6 A 6 A
Fluorescent Lamps 300 V per pole 8.4 A 8.4 A
Short-circuit protection device for contactors
without thermal overload relay - motor protection excluded
Fuse rating 600 V 40 A
Fuse type, 600 V 600 V Class J
Maximum electrical switching frequency
For resitive loads AC-1 300 cycles/h
For motor loads AC-3 600 cycles/h
1) For the corresponding kW/A or hp/A values of 1500 r.p.m, 50 Hz or 1800 r.p.m, 60 Hz, 3-phase motors, see "Motor rated operational powers and currents".
General technical data
Contactor types AC operated B6, VB6, VB6A B7, VB7, VB7A
DC operated BC6, VBC6, VBC6A BC7, TBC7, VBC7, VBC7A
Rated insulation voltage U
i
acc. to IEC 60947-4-1 690 V
acc. to UL/CSA 600 V
Rated impulse withstand voltage U imp 6 kV
Ambient air temperature, close to contactor
Operation Fitted with thermal overload relay -25 ... +50 °C
Without thermal overload relay -25 ... +55 °C
Storage -40 ... +80 °C
Climatic withstand Acc. to IEC 60947-1 Annex Q
Maximum operating altitude (without derating) 2000 m
Mechanical durability 10 operating cycles
7
Resistance to shock Half-sine
acc. IEC 60068-2-27 and EN 60068-2-27 15 g / 11 ms
acc. to IEC/EN 60947-1 Annex. Q Category E
Resistance to vibrations Sinusoidal
acc. IEC 60068-2-27 and EN 60068-2-27 5 g / 3 ... 150 Hz
acc. to IEC/EN 60947-1 Annex. Q Category E

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