(generator) CTI AUTOMATIC TRANSFER SWITCH, 3 phase, 125A
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(generator) CTI AUTOMATIC TRANSFER SWITCH, 3 phase, 125A
Definition
Benefits
• Fully automatic mains failure sensing and generator set start signal
• Pre-programmed enabling the panel to run on installation with the ability to customise if necessary
• Fast acting switches reduce transfer times between set and utility power
• Integration with FG Wilson digital control panels
Features
• Automatic and manual operation
• Automatically provides generator set start signal upon detection of mains failure, overvoltage or loss of phase
• Automatic mains re-transfer function
• Flexible, upgradeable options
• Test operations and sequences accessible from panel or remotely
• Manual switch operation possible via external handle
• LED functions display showing generator set / mains availability and switch position
• LCD display for voltage and timers
• Load transfer panel range meets ATS IEC 60947-6-1 standard
Specifications
Given for the 125 A 50Hz model
Frequencies: 50 Hz
Thermal current Ithe 40 °C (A): 125
Thermal current Ithe 50°C (A): 110
Thermal current Ithe 60°C (A): 100
Assigned insulation voltage Ui (V) (power circuit): 600
Assigned impulse voltage Uimp (kV) (power circuit): 6
Assigned insulation voltage Ui (V) (auxiliary circuit): 300
Assigned impulse voltage Uimp (kV) (auxiliary circuit): 2.5
Other characteristic at 40°C
Rated operational currents Ie (A)
IEC 60947-3 characteristics 415 Vac
AC 21A / 21 B: 125/125
AC 22A / 22 B: 125/125
AC 23A / 23 B: 125/125
IEC 60947-6-1 characteristics 415 Vac
AC 31B: 125
AC 32B: 125
Operating class
Material class (according to 60947-6-1): PC
Maximum short circuit current using gG DIN fuse
Max short circuit (kA eff): 50
Associated fuse size (gG): 125
Peak current value: withstand and closing operation (kA peak): 13.5
Short circuit operation
Rated short time withstand current (kA eff) / 30 ms: 10
Transfer time
I-O / O-I / II-O / O-II (ms): 50
I-II or II-I (ms): 180
Blackout time during comutation under Un (ms): 120
Power input
Peak current during operation (A): 20
Continuous power consumption (VA): 6
Mechanical characteristics
Number of mechanical operations (according to 60947-6-3): 10000
Cables connection
Minimum cable size (Cu mm2): 50
Maximum cable size (Cu mm2): 70
Dimensions
Height (mm): 600
Width (mm): 400
Depth (mm): 200
Weight (kg): from 20 to 25 (including accessories)
Instructions for use
Consult manual for detailed installation instructions.
Precautions for Use
To be installed only by qualified persons!