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ABB MOTOR PROTECTION AND CONTROL 3/297

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Auxiliary contact blocks for AF116 ... AF2850 contactors

Technical data 03
Types CAL18 CAL19
Contact utilization characteristics according to IEC
Standards IEC 60947-5-1 and EN 60947-5-1
Rated insulation voltage Ui acc. to IEC 60947-5-1 690 V
Rated impulse withstand voltage Uimp. 6 kV
Pollution degree 3
Rated operational voltage Ue max. 24...690 V AC
Conventional thermal current Ith - θ ≤ 40 °C 16 A
Rated frequency (without derating) 50/60 Hz
Ie / Rated operational current AC-15
acc. to IEC 60947-5-1 24-127 V 50/60 Hz 6 A
220-240 V 50/60 Hz 4 A
380-440 V 50/60 Hz 3 A
500-690 V 50/60 Hz 2 A
Making capacity acc. to IEC 60947-5-1 10 x Ie AC-15
Breaking capacity acc. to IEC 60947-5-1 10 x Ie AC-15
Ie / Rated operational current DC-13
acc. to IEC 60947-5-1 24 V DC 6 A / 144 W 3 A / 72 W
48 V DC 2.8 A / 134 W 1.5 A / 72 W
72 V DC 1 A / 72 W 1 A / 72 W
110 V DC 0.55 A / 60 W 0.55 A / 60 W
125 V DC 0.55 A / 69 W 0.55 A / 69 W
220 V DC 0.3 A / 66 W 0.3 A / 69 W
250 V DC 0.3 A / 75 W 0.3 A / 75 W
Short-circuit protection device gG type fuse 10 A
Rated short-time withstand current Icw for 1.0 s 100 A
θ = 40 °C for 0.1 s 140 A
Minimum switching capacity 24 V / 50 mA (0.5 million of operating cycles) 24 V / 50 mA
with failure rate acc. to IEC 60947-5-4 ≤ 10-6
Power dissipation per pole at 6 A 0.15 W
Mechanical durability Number of operating cycles 3 millions (A/AF400 ... AF750)
0.5 million (AF1250 ... AF2050) 5 millions operating cycles
Max. switching frequency 3600 cycles/h 300 cycles/h
Max. electrical switching frequency AC-15 1200 cycles/h 300 cycles/h
DC-13 900 cycles/h 300 cycles/h
Mirror contacts acc. to annex F of IEC 60947-4-1 N.C. auxiliary contacts are mirror contacts (1)
(1) CAL19: for 3-pole contactors only.
Contact utilization characteristics according to UL / CSA
Standards UL 508, CSA C22.2 N°14
Max. operational voltage 600 V AC, 250 V DC
Pilot duty A600, Q300
AC thermal rated current 10 A
AC maximum volt-ampere making 7200 V A
AC maximum volt-ampere breaking 720 V A
DC thermal rated current 2.5 A
DC maximum volt-ampere making-breaking 69 V A
Connecting characteristics
Connection capacity (min. ... max.)
Rigid Solid/Stranded 1 x 1...4 mm²
2 x 1...4 mm²
Flexible with non insulated ferrule 1 x 0.75...2.5 mm²
2 x 0.75...2.5 mm²
Flexible with insulated ferrule 1 x 0.75...2.5 mm²
2 x 0.75...2.5 mm²
Lugs L ≤ 8 mm
l L
l > 3.7 mm
Connection capacity acc. to UL/CSA 1 or 2 x AWG18...14
Stripping length 9 mm
Tightening torque 1 Nm
Degree of protection
acc. to IEC 60947-1 / EN 60947-1 and IEC 60529 / EN 60529 IP20
Screw terminals Delivered in open position, screws of unused terminals must be tightened
All terminals M3.5
Screwdriver type Flat Ø 5.5 / Pozidriv 2