Page 561 - Motor protection and control Manual motor starters, contactors and overload relays

ABB MOTOR PROTECTION AND CONTROL 4/45

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B6, B7, BC6, BC7 3- and 4-pole mini contactors

VB6, VB7, VBC6, VBC7 3- and 4-pole mini reversing contactors
Technical data

Built-in auxiliary contact according to IEC
Types Built-in auxiliary contacts
Standards IEC/EN 60947-1, IEC/EN 60947-5-1
Rated operational voltage Ue max 690 V
Rated frequency (without derating) DC or 50 / 60 Hz
Conventional free-air thermal current lth θ ≤ 40 °C 6 A 04
Ie / Rated operational current AC-15 24 V 4 A
110-120 V 4 A
220-230-240 V 4 A
380-400 V 3 A
440 V 3 A
Ie / Rated operational current DC-13 24 V 2.5 A
110 V 0.7 A
220 - 240 V 0.4 A
Short-circuit protection device - fuse type gG 6 A
Minimum switching capacity with failure rate 17 V / 5 mA
acc. to IEC 60947-5-4
Maximum electrical switching frequency AC-15 600 cycles/h
DC-13 600 cycles/h

Built-in auxiliary contact according to UL/CSA
Types Built-in auxiliary contacts
Standard UL/CSA 60947-1, UL/CSA 60947-5-1
Max. operational voltage 600 V AC
Pilot duty A600

Connection characteristics
Contactor types AC operated B6, VB6, VB6A B7, VB7, VB7A
DC operated BC6, VBC6, VBC6A BC7, VBC7, VBC7A
Terminals (1)

Screw terminals with cable clamp
Connection capacity
Main conductors (poles)
Rigid: solid 1 or 2 x 1 ... 4 mm²
Flexible without ferrule 1 or 2 x 1 ... 2.5 mm²
Connection capacity acc. to UL/CSA 1 or 2 x AWG 22 ... 10
Stripping length 9 mm
Tightening torques 0.8 ... 1.1 Nm / 7 lb.in
Connection capacity – auxiliary conductors
(built-in auxiliary terminals + coil terminals)
Rigid: solid 1 or 2 x 1 ... 4 mm²
Flexible without ferrule 1 or 2 x 1 ... 2.5 mm²
Connection capacity acc. to UL/CSA 1 or 2 x AWG 22 ... 10
Stripping length 9 mm
Tightening torques
Coil terminals 0.8 ... 1.1 Nm / 7 lb.in
Built-in auxiliary terminals 0.8 ... 1.1 Nm / 7 lb.in
Degree of protection acc. to IEC/EN 60947-1 and IEC/EN 60529
Main terminals IP20
Coil terminals IP20
Built-in auxiliary terminals IP20
Screw terminals (Delivered in open position, screws of unused terminals must be tightened)
All terminals M3
Screwdriver type Flat Ø 5.5 mm / Pozidriv 1
2CDC102043C0201 - Rev. B
(1) Soldering pin connection acc. to DIN 40801: 0.8 x 1 mm / 0.8 x 2.54 mm
Flat pin connection acc. to DIN 46248: 1 x 6.3 mm / 1 x 2.8 mm