MODEL: AS4CT
Plug-in Signal Conditioners M-UNIT
[2] OUTPUT
2: 4 points; N.O. or make contact
3: 4 points; N.C. or break contact
5: 2 points; SPDT or transfer contact
CT ALARM
(dual or quad alarm trip; field-configurable)
Functions & Features
• Provides relay outputs at preset AC current levels from a
CT (current transformer)
[3] POWER INPUT
AC Power
• True RMS sensing
M2: 100 – 240 V AC (Operational voltage range 85 – 264 V,
• Quad or dual trip
47 – 66 Hz)
• Setting and display in engineering unit values
• Setpoint adjustments with the front keypad
• Software lock
DC Power
R: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
P: 110 V DC
• Adjustable hysteresis (deadband)
• On-delay timer
(Operational voltage range 85 – 150 V, ripple 10 %p-p max.)
• Hi/Lo trip and energized/de-energized coil independently
selectable for each setpoint
[4] OPTIONS
blank: none
• Enclosed relays
• Relays can be powered by 200 V AC and 100 V DC
• High-density mounting on DIN rail
/Q: With options (specify the specification)
SPECIFICATIONS OF OPTION: Q (multiple selections)
COATING (For the detail, refer to M-System's web site.)
/C01: Silicone coating
Typical Applications
• Annunciator
• Various alarm applications
/C02: Polyurethane coating
/C03: Rubber coating
50
(1.97)
TERMINAL SCREW MATERIAL
/S01: Stainless steel
EX-FACTORY SETTING
80
(3.15)
/SET: Preset according to the Ordering Information Sheet
(No. ESU-1603)
132
(5.20)
mm (inch)
GENERAL SPECIFICATIONS
Construction: Plug-in
Connection: M3.5 screw terminals
Screw terminal: Chromated steel (standard) or stainless
steel
MODEL: AS4CT–[1][2]–[3][4]
ORDERING INFORMATION
• Code number: AS4CT-[1][2]-[3][4]
Specify a code from below for each of [1] through [4].
(e.g. AS4CT-S52-R/Q)
Housing material: Flame-resistant resin (black)
Isolation: Input to output to power
Input waveform: Up to 15 % of 3rd harmonic content
Sampling cycle: 100 msec.
User-configurable items: Front key pad
• Alarm setpoint
• Specify the specification for option code /Q
(e.g. /C01/S01/SET)
• Display range scaling
• Power ON-delay time
[1] INPUT
Current
• Alarm ON-delay time
• Moving average
S1: 0 – 1 A AC
S5: 0 – 5 A AC
• Hi/Lo trip operation
• Coil at alarm
• Hysteresis (deadband)
• 0 %, 100 % input voltage/current
AS4CT SPECIFICATIONS
ES-1603 Rev.13 Page 1/4
https://www.m-system.co.jp/