Page 62 - EPR Catalog 2015

CT-S range
Technical data

1 Data at Ta = 25 °C and rated values, unless otherwise indicated CT-S

Input circuit - Supply circuit CT-xxx.x1 24-240 V AC/DC
Rated control supply voltage Us CT-xxx.x2 24-48 V DC, 24-240 V AC
CT-xxx.x3 380-440 V AC
Rated control supply voltage US tolerance CT-xxx.x4 110-240 V AC
Rated frequency CT-xxx.x5 220-240 V AC
Frequency range AC CT-xxx.x6 24 V AC/DC
Typical current / power consumption CT-xxx.x7 100-127 V AC or 110 V DC
Power failure buffering time CT-xxx.x8 200-240V AC/DC
Minimum energizing time
Formatting time 1) -15...+10 %

DC or 50/60 Hz
47-63 Hz
depending on device, see data sheet
24 V DC min. 15 ms
230/400 V AC min. 20 ms
100 ms (CT-ARS)
5 min (CT-ARS)

Input circuit - Control circuit CT-MVS, CT-MXS, CT-APS voltage-related triggering
Kind of triggering A1-Y1/B1 start timing external
yes / no
Control input, Control function
Parallel load / polarized

Maximum cable length to the control input 50 m - 100 pF/m

Minimum control pulse length 20 ms

Control voltage potential see rated control supply voltage

Current consumption of the control input 24 V DC 1.2 mA

230 V AC 8 mA

400 V AC 6 mA

Kind of triggering CT-MFS, CT-MBS, CT-AHS volt-free triggering

Control input, Control function Y1-Z2 start timing external

X1-Z2 pause timing / accumulative functions (CT-MFS)

Maximum switching current in the control circuit 1 mA
Maximum cable length to the control input 50 m - 100 pF/m

Minimum control pulse length 20 ms
No-load voltage at the control inputs 10-40 V DC

Remote potentiometer

Remote potentiometer connections, Resistance value Z1-Z2 50 kΩ (CT-MFS, CT-MBS, CT-MVS.21, CT-MXS)

Z3-Z2 50 kΩ (CT-MXS)

Maximum cable length to remote potentiometer 2 x 25 m, shielded with 100 pF/m

Shield connection Z2

Timing circuit 10 time ranges 0.05 s - 300 h 1.) 0.05-1 s 2.) 0.15-3 s 3.) 0.5-10 s 4.) 1.5-30 s 5.) 5-100 s
Time ranges 6.) 15-300 s 7.) 1.5-30 min 8.) 15-300 min 9.) 1.5-30 h 10.) 15-300 h

7 time ranges 0.05 s - 10 min (CT-SDS, 1.) 0.05-1 s 2.) 0.15-3 s 3.) 0.5-10 s
CT-ARS) 4.) 1.5-30 s 5.) 5-100 s 6.) 15-300 s 7.) 0.5-10 min

Recovery time 24-240 V AC/DC < 50 ms

24-48 V DC, 24-240 V AC < 80 ms

380-440 V AC < 60 ms

Accuracy within the rated control supply voltage tolerance ͬt < 0.004 % / V

Accuracy within the temperature range ͬt < 0.03 % / °C

Repeat accuracy (constant parameters) < ±0.2 %

Star-delta transition time fixed 50 ms (CT-SDS, CT-MBS, CT-MFS, CT-MVS.2x)

Star-delta transition time tolerance ±2 ms

1) prior to first commisioning and after a six-month stop in operation

1/51 ABB | Catalog Electronic Products and Relays 2015 | 2CDC 110 004 C0210