Submittal Sheet

ManualsBrandsHoneywell ManualsCurrent SensorsSolid Core Current Sensor, Loop Powered, 12-30 VDC

Table Of Contents

IND.CONT.EQ.

3JHX

PRODUCT DATA

63-2654—1

Solid Core and Split Core 4-20 mA

Output Current Sensors

CTS-20; CTP-20

FEATURES

• Solid or split core loop-powered current transmitters

• Fast response time

• Integral DIN rail mounting flange

• Easy wiring, polarity sensitive output

• Accepts up to a 350 MCM (17.3 mm) cable

• Operates up to 250 continuous amps

• True RMS versions are available

• Limited five year warranty

• RoHS and WEEE complaint

DESCRIPTION

The CTS-20 and CTP-20 series current sensors monitor the

current flowing to electrical equipment or buildings. The

magnitude of this current is then converted into a linear and

proportional 4 to 20 mA output signal, which can be monitored

by your Building Management, DDC or PLC controller. The

current sensors are available in either an average or true RMS

output version. All of these sensors have jumper selectable

input ranges except for the 0 to 5 Amp input range. These

current sensors should be used in load trending (current

monitoring) type applications. The CTS-20 series current

sensors are an excellent choice for new installations.The

CTP-20 series current sensors are ideal for retrofit or existing

installations, since it is not necessary to power down the unit

and disconnect any wires during the installation process. All of

the current sensors are fast acting, reliable and extremely

easy to install. No additional din rail mounting clips are

necessary, due to the unique design of the integral din rail

mounting flange.

The CTS-20 and CTP-20 series current sensors are extremely

accurate from 1 to 100% of the FSO (Full Scale Output). All of

the current sensors are factory calibrated using a NIST

Traceable standard and shipped with the jumper placed in the

largest jumper selectable range. In applications where the

maximum current is larger than 250 Amps, Honeywell

recommends the use of a traditional ratio:5 (5A) current

transformer and the CTS-20-005 or CTP-20-005 for best

results. The CTS-20 and CTP-20 must be externally powered

using a +12 to 30 Vdc power supply.

All of the CTS-20 and CTP-20 series current sensors come

with a limited five year factory warranty.

Contents

Description ........................................................................1

Features ............................................................................1

Specifications ....................................................................2

Ordering Information .........................................................2

Safety ................................................................................4

Installation .........................................................................4

Troubleshooting.................................................................6

Current Conversion Formula .............................................6

Summary of content (8 pages)

PAGE 1
Solid Core and Split Core 4-20 mA Output Current Sensors CTS-20; CTP-20 PRODUCT DATA FEATURES • Solid or split core loop-powered current transmitters • Fast response time • Integral DIN rail mounting flange • Easy wiring, polarity sensitive output • Accepts up to a 350 MCM (17.
PAGE 2
SOLID CORE AND SPLIT CORE 4-20 MA OUTPUT CURRENT SENSORS SPECIFICATIONS Sensor Supply Voltage (Vs): +12 to 30 Vdc Max Sensing Current Voltage: 600 Vac Supply Current: 36 mA max Aperture (Hole) Size: 3/4 in. (19 mm), Accepts up to 350 MCM (17.3 mm) cables Amperage Ranges: See Table 1 Dimensions: See Figures 1 and 2 Output: 4 to 20 mA, 2-Wire loop powered DIN Rail Size: 1-3/8 in. (35 mm) Accuracy (from 1-100% of FSO): CTS-20-AVG, CTP-20-AVG: ±0.5% CTS-20-VFD, CTP-20-VFD: ±0.5% Unit Weight: CTS: 0.
PAGE 3
SOLID CORE AND SPLIT CORE 4-20 MA OUTPUT CURRENT SENSORS Table 1. Operating Specifications (Continued) Product Number Core Type Output Range Max. Current Continuous Jumpera Max. Current for 6 secs.
PAGE 4
SOLID CORE AND SPLIT CORE 4-20 MA OUTPUT CURRENT SENSORS TOP VIEW HM L INPUT H=0-250A RANGE: M=0-200A L=0-100A 1/2 (13) 7/32 (6) TYP. 4-20 mA LOOP 12-35 VDC 2-27/32 (72) LEFT SIDE VIEW TERMINAL BLOCK FRONT VIEW 3/4 (19) RIGHT SIDE VIEW 2-45/64 (69) 49/64 (19) 9/64 (4) 1-3/8 (35) 3-21/64 (85) 1-5/64 (25) M23592A Fig. 2. CTP-20 current sensor dimensions in inches (mm) SAFETY procedures for high-voltage installations should attempt installation.
PAGE 5
SOLID CORE AND SPLIT CORE 4-20 MA OUTPUT CURRENT SENSORS WARNING 3X The secondary of the 5A Current Transformer (C.T.) must be shorted together before the power may be turned on from the device. For applications in which the normal operating current is greater than 200 or 250 Amps, depending on the model, or for conductor diameters larger than 0.75 in. (19 mm) in diameter, an external 5 Amp Current Transformer (C.T.
PAGE 6
C R C U L R US U L US SOLID CORE AND SPLIT CORE 4-20 MA OUTPUT CURRENT SENSORS M25298 Fig. 6. Opening sensor by hand Wiring Honeywell recommends the use of 16 to 22 AWG (1.3 to 0.3 mm2) shielded cable, copper wire only for all current sensor applications. A maximum wire length of less than 98.4 feet (30 meters) should be used between the current switches and the Building Management System or controller.
PAGE 7
SOLID CORE AND SPLIT CORE 4-20 MA OUTPUT CURRENT SENSORS TROUBLESHOOTING Problem Solution No reading • Confirm that you have +12 to 30 Vdc in series with the current sensor output terminals and the analog input of the control panel. • Check the polarity of the circuit. • Verify that the terminals are screwed down, wires are firmly in place.
PAGE 8
SOLID CORE AND SPLIT CORE 4-20 MA OUTPUT CURRENT SENSORS Automation and Control Solutions Honeywell International Inc. Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Toronto, Ontario M1V 4Z9 customer.honeywell.com ® U.S. Registered Trademark © 2007 Honeywell International Inc. 63-2654—1 C.H. Rev.