NGC-30-CR - CRM -CRMS -CTM -CVM
ControlandMonitoringModulesforUsewiththenVent
RAYCHEMNGC-30InstallationInstructions
C
APPROVALS/CERTIFICATIONS
Hazardous Locations
Class I, Div. 2, Groups A,B,C,D
Ex nC IIC T5
Class I, Zone 2, AEx nC IIC T5
General
SupplyVoltage
Internalpowerconsumption
Ambientoperatingtemperature
Ambientstoragetemperature
Environment
Max.altitude
Humidity
Electromagnetic Compatibility
Immunity
Emission
Temperature Sensors
Type
Quantity
Current Sensors
Mounting
QuantityperNGC-30-CTM
D
A
B
12Vdc±10%
<5WperNGC-30-CRM/-CRMS
–40ºFto140ºF(–40ºCto60ºC)
–40ºFto167ºF(–40ºCto75ºC)
PD2,CATIII
2000m
0–90%non-condensing
HeavyIndustrial
IndustrialEnvironment
100-ohmplatinumRTD,3-wire,
α=0.00385ohms/ohm/ºC
Canbeextendedwitha3-conductor
shieldedcableof20ohmmaximumper
conductor
Uptofivewireddirectlytoeach
NGC-30-CRM/-CRMS
DinRail–35mm
Fiveforground-currentmeasurement
Fiveforlinecurrentmeasurement
DESCRIPTION
ThenVentRAYCHEMNGC-30-CRM/-CRMSandNGC-30-
CTMprovideground-faultandlinecurrentsensing,alarming,
switchingandRTDinputsforfiveheat-tracingcircuitswhen
usedwiththeNGC-UIT.TheNGC-30-CRMisusedtocontrol
ElectromechanicalRelays(EMRs)andtheNGC-30-CRMSisused
tocontrolSolidStateRelays(SSRs).
TOOLS REQUIRED
• Wirecutters
• RJ11stripping/crimpingtool
ADDITIONAL MATERIALS REQUIRED
• Powersupply-12Vdc@400mA-perNGC-30-CRM/-CRMSboard
• RJ114conductorcable
KIT CONTENTS
Item Qty Description
A
1
N GC-30-CRMorCRMS(cardrackmodulewithconnectors)
B
1
NGC-30-CTM(currenttransformermodule)
C
1
NGC-30-CR(cardrack)
D
1
NGC-30-CVM(voltagemonitoringmodule)-optional
Line Current Sensors
Maxcurrent
Accuracy
Ground Fault Sensor
Range
Accuracy
Voltage Sensor
Range
Accuracy
Outputs
CRMoutputrelays
CRMSSSRoutputs
AlarmRelay
Communication to NGC-UIT
Type
Cable
Length
Quantity
Connection Terminals
Powersupply/PilotRelay/
RTD/CommPort(RS485)
*MayrequireanRS-485repeaterifcommunicationlengthisgreaterthan4000ft.
• RJ11connectors
• Screwdriversmallblade-
standard
60A
±2%ofreading
10–200mA
±4%ofrangeat30Alinecurrent
80–290Vac50/60Hz
±1%ofspan
FormA3-Amp@277Vacmax50/60Hz
12Vdc@30mAmaxperoutput
FormC3-Amp@277Vacmax50/60Hz
2wireRS-485
Oneshieldedtwistedpair
4000ft.(1200M)maximum
Upto52*NGC-30-CRM/-CRMSmay
beconnectedtooneNGC-UIT
2
18–12AWG(0.8-3.3mm
)
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