Installation Instructions - nVent RAYCHEM NGC-30-CR Instructions D'installation

NGC-30-CR
NGC-30-CRM
NGC-30-CRMS
NGC-30-CTM
NGC-30-CVM
General
Approvals/Certifications
Non-hazardous Locations
Hazardous Locations
Supply Voltage
Internal power consumption
Ambient operating temperature
Ambient storage temperature
Environment
Max. altitude
Humidity
Electromagnetic Compatibility
Immunity
Emission
Temperature Sensors
Type
Quantity
WARNING
This component is an electrical device that must
be installed correctly to ensure proper operation
and to prevent shock or fire. Read these important
warnings and carefully follow all of the installation
instructions.
Class I, Div. 2, Groups A,B,C,D T5
Ex nC IIC T5 Gc
Class I, Zone 2, AEx nC IIC T5 Gc
IECEx UL 19.0064 X,
DEMKO 19 ATEX 2239 X
II 3 G Ex ec nC IIC T5 Gc
(Russia, Kazakhstan, Belarus)
For other countries
contact your local nVent
representative.
12 Vdc ± 10%
< 5 W per NGC-30-CRM/-CRMS
–40ºF to 140ºF (–40ºC to
60ºC)
–40ºF to 167ºF (–40ºC to
75ºC)
PD2, CAT III
2000 m
0 – 90% non-condensing
Heavy Industrial
Industrial Environment
100-ohm platinum RTD, 3-wire,
α = 0.00385 ohms/ohm/ºC.
Can be extended with a
3-conductor shielded cable
of 20 ohm maximum per
conductor
Up to five wired directly to
each NGC-30-CRM/-CRMS
• Component approvals and performance are
based on the use of nVent-specified parts only.
Do not use substitute parts.
• Keep components dry before and during
installation.
CONTROL AND MONITORING MODULES FOR USE
WITH THE NVENT RAYCHEM NGC-30

INSTALLATION INSTRUCTIONS

Description
The nVent RAYCHEM NGC-30-CRM/-CRMS and NGC-30-CTM
provide ground-fault and line current sensing, alarming, switching
and RTD inputs for five heat-tracing circuits when used with the
NGC-UIT. The NGC-30-CRM is used to control Electromechanical
Relays (EMRs) and the NGC-30-CRMS is used to control Solid
State Relays (SSRs).
Tools Required
• Screw driver small blade - standard
• RJ11 stripping/crimping tool
Additional Materials
• Power supply - 12 Vdc @ 400 mA-per NGC-30-CRM/-CRMS
board
• RJ11 4 conductor cable
Kit Contents
Item Qty Description
A 1 NGC-30-CRM or CRMS (card rack module with
connectors)
B 1 NGC-30-CTM (current transformer module)
C 1 NGC-30-CR (card rack)
D 1 NGC-30-CVM (voltage monitoring module) - optional
Current Sensors
Mounting Din Rail – 35 mm
Quantity per Five for ground-current measurement
NGC-30-CTM Five for line current measurement
Line Current Sensors
Max current 60 A
Accuracy ± 2% of reading
Ground Fault Sensor
Range 10 – 200 mA
Accuracy ± 4% of range at 30 A line current
Voltage Sensor
Range 80 – 290 Vac 50/60 Hz
Accuracy ± 1% of span
Outputs
CRM output relays Form A 3-Amp @ 277 Vac max 50/60 Hz
(CSA), 1.5A MAX @ 277 Vac max 50/60 Hz
(IECEx/ATEX)
CRMS SSR outputs 12 Vdc @ 30 mA max per output
Alarm Relay Form C 3A MAX @ 277 Vac max 50/60 Hz
(CSA), 1.5A MAX @ 277 Vac max 50/60 Hz
(IECEx / ATEX)
Communication to NGC-UIT
Type 2 wire RS-485
Cable One shielded twisted pair
Length 4000 ft. (1200 M) maximum
Quantity Up to 52* NGC-30-CRM/-CRMS may be
connected to one NGC-UIT
Connection Terminals
Power supply/Pilot 0.8 - 3.3 mm
Relay/ RTD/Comm provided wiring, 70°C or higher Tightening
Port (RS485) torque: min 0.5 Nm, max 0.6 Nm
* May require repeaters
• Leave these instructions with the end user for
reference and future use.
For technical support, call nVent at
+ 00 32 16 213511 or your local representative.
• Wire cutters
• RJ11 connectors
2 Minimum rating of client
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