ES-4237 Rev.9

6CT

Field-mounted Two-wire Signal Conditioners 6-UNIT

CT TRANSMITTER

Functions & Features
• Converting an alternating current from a current transformer into an isolated 4 – 20 mA DC signal
• Minimal ripple
• True RMS sensing
• Rugged enclosure
Typical Applications
• Centralized monitoring and control of motors, pumps or heaters by DCS
• Monitoring power line and power supply current

MODEL: 6CT–[1]

ORDERING INFORMATION

• Code number: 6CT-[1]
Specify a code from below for [1].
  (e.g. 6CT-1)
• Mounting adapter (e.g. surface mounting adapter plate, model: A-01)
Note: When a mounting adapter is required, specify mounting adapter. Not included without specifying.

[1] INPUT

Current
1: 0 – 1 A AC
5: 0 – 5 A AC

RELATED PRODUCTS

• Outdoor enclosure (model: 6BX-E)

PACKAGE INCLUDES...

• Mounting adapter
  surface mounting adapter plate (model: A-01)
  Spring clip (model: A-02)
  DIN rail mounting plate (model: A-31)

Note: When a mounting adapter is required, specify mounting adapter. Not included without specifying. 
When using in combination with outdoor enclosure (model: 6BX-E), use a spring clip (model: A-02).

GENERAL SPECIFICATIONS

Connection: M3 screw terminals (torque 0.6 N·m)
Screw terminal: Nickel-plated steel
Housing material: Diecast aluminum
Isolation: Input to output
Input waveform: Up to 15 % of 3rd harmonic content
Zero adjustment: -5 to +5 % (behind the access cover)
Span adjustment: 95 to 105 % (behind the access cover)

INPUT SPECIFICATIONS

Frequency: 50 or 60 Hz
Input burden: 0.5 VA maximum
Overload capacity: 1000 % of rating for 3 sec., 200 % for 10 sec., 120 % continuous
Operational range: 0 – 120 % of rating

OUTPUT SPECIFICATIONS

Output: 4 – 20 mA DC
Load resistance vs. supply voltage: Load Resistance (Ω) = (Supply Voltage (V) – 13 (V)) ÷ 0.02 (A)
(including leadwire resistance)

INSTALLATION

Supply voltage: 13 – 28 V DC
Operating temperature: -5 to +70°C (23 to 158°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: DIN rail with mounting plate A-31; surface mounting with adapter plate A-01; spring clip A-02 for 3-inch hub
Weight: 220 g (0.49 lb)

PERFORMANCE in percentage of span

Accuracy: ±0.3 %
Temp. coefficient: ±0.03 %/°C (±0.02 %/°F)
Response time: ≤ 0.5 sec. (0 – 90 %)
Ripple: 0.5 %p-p max. (100/120 Hz)
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 2000 V AC @ 1 minute (input to output)
1500 V AC @ 1 minute (input or output to ground)

EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM