Product details

• TECHNICAL DETAILS

  SPECIFICATIONS

  Application pipe freeze protection and temperature maintenance Area of Use non-hazardous area (EMR variants) hazardous areas Zone 2 (SSR or purged panel variants) Ambient temperature range -40°C to +70°C Storage temperature range -55°C to +85°C Supply voltage 100 V a.c. to 254 V a.c. ±10% 50/60 Hz Power consumption < 24W Electromagnetic compatibility IEC 61326-1:2012 / EN 61326-1:2013

  Control Relay type double-pole, mechanical (EMR variants)  double-pole, solid-state (SSR variants) Maximum voltage 690 V a.c. 50/60 Hz Maximum current 63A continuous (limited by the rating of the output device)    Control algorithms On/Off, PASC, always on, always off (EMR variants) On/Off, proportional, PASC, always on, always off (SSR variants) Control range -200°C to 700°C

  Monitoring Ethernet 10/100 Base-T Temperature LOW alarm range: -200°C to 700°C HIGH alarm range: -200°C to 700°C Ground fault Alarm range: 10 mA to 500 mA or OFF Trip range: 10 mA to 500 mA or OFF Current LOW alarm range: 0.1 A to 100 A or OFF HIGH alarm range: 0.1 A to 100 A or OFF Power limit range: 8 W to 30 kW Voltage LOW alarm range: 80 V a.c. to 300 V a.c. or OFF HIGH alarm range: 80 V a.c. to 300 V a.c. or OFF Resistance LOW resistance range: 1% to 100% of deviation from nominal HIGH resistance range: 1% to 250% of deviation from nominal Autocycle 1 to 750 hours

  Temperature Sensor Inputs
  Qty	3.  Each can be individually set to one of the types below;
  100Ω platinum RTD	3-wire, α=0.00385 ohms/ohm/°C -200°C to 700°C (-328°F to 1292°F), ± 1°C can be extended with a 3-conductor shielded cable of 20Ω maximum per conductor
  100Ω nickel iron RTD	2-wire, α=0.00599 ohms/ohm/°C -73°C to 350°C (-99°F to 662°F), ± 1°C can be extended with a 2-conductor shielded cable of 20Ω maximum per conductor
  100Ω nickel RTD	2-wire, α=0.00618 ohms/ohm/°C -70°C to 250°C (-94°F to 482°F), ± 1°C can be extended with a 2-conductor shielded cable of 20Ω maximum per conductor
  Thermocouple	require external 4-20 mA converter 4-20 mA current loop,  ± 0.05 mA, 24 V d.c. loop power
  The Elexant 4020-IS variants are equipped with intrinsic safety barriers at the RTD inputs. RTD intrinsic safety associated apparatus entity parameters:
  Uo (maximum output voltage): 5.4 V Io (maximum output current): 0.83 mA Po (maximum output power): 0.449 W La (maximum external inductance): 2 mH Ca (maximum external capacitance): 65 uF

  Digital Inputs
  Quantity	two multi-purpose inputs for connection to external dry (voltage free) contact or DC voltage can be configured for Hand-Off-Auto (HOA) operation
  Rating	100 Ω max loop resistance or 5-24 V d.c. @ 1mA maximum

  Outputs
  Control Relay	form-A wet contact: 100 V a.c. to 277 V a.c. 50/60 Hz
  DC (SSR) Control Output	12 V d.c. @ 215 mA max.
  Analog (Liner Phase Control)	0-10 V d.c. @ 215 mA max.
  Alarm relay	form-C dry contact: 100 V a.c. to 277 V a.c. 3A 50/60 Hz can be configured for Hand-Off-Auto (HOA) operation
  Auxiliary	24 V d.c. max load of 250 mA @ 40°C, de-rated to 165 mA @ 60°C

  Configuration / programming
  Method	touch screen display
  Units	°C  or °F
  Idle display	sensor temperature, control temperature, heater current, voltage, power, alarm status
  LEDs	status: heater on, alarm conditions, receive / transmit data
  Memory	non-volatile, restored after power loss, checksum data checking
  Stored usage parameters	minimum and maximum process temperature maximum ground fault current minimum and maximum voltage maximum heater current power accumulator contactor cycle count total time in use heater on time
  Alarm conditions	low / high temperature low / high current low / high voltage low / high resistance  ground-fault alarm / trip RTD failure loss of programmed values EMR or SSR failure equipment protection trip attached device alarm contactor lifetime exceeded
  Alarm modes	normal (solid on), flash (on & off), toggle (re-ring new alarms)
  Control algorithms	*-EMR variants: On/Off, PASC, always on, always off *-SSR variants: On/Off, proportional, PASC, always on, always off
  Equipment protection	ground fault trip, low / high temperature limit, Soft-Start features, (heat trace output limiting, SSR overcurrent protection, circuit breaker nuisance trip prevention)
  Load shedding	Up to 8 zones, with temperature fail safe and communication timeout (requires nVent RAYCHEM Supervisor)
  Profiles	Built-in default setting profiles for common heat trace applications. Up to two additional user configurations can be saved and reloaded. Saved configurations can be saved to and loaded from a USB thumb drive
  Network	Automatic network configuration with DHCP, or static IP configuration
  Firmware updates	User via USB thumb drive
  Multi language interface	English, French, German, Spanish, Russian
  Other	Password protection, text tags / identifiers for controller and temperature sensors

  Communication
  Communication port	RS-485 and Bluetooth Class 1
  Type	2-wire RS-485
  Cable	One shielded twisted pair (not included)
  Length	up to 1,200 m (4000 ft) maximum
  Quantity	up to 247 devices per port
  Data rate	9600, 19200, 38400, 57600 baud
  Parity	None, even, odd
  Stop bits	0, 1, 2
  Tx delay	0 - 5 seconds
  Protocol	Modbus RTU,

  Connection terminals
  Power supply input	screw terminals 0.2 mm2 to 16.8mm2
  Heat cable output	screw terminals 0.2 mm2 to 16.8mm2
  Ground (earth)	screw terminal 0.2 mm2 to 16.8 mm2
  Torque range	1.5  -  1.5 Nm
  Sensor / Other terminals	Cage clamp terminals 0.08 mm2 to 3.3 mm2

  
  

• APPROVALS

  APPROVALS

  
  

• DIMENSIONS

  DIMENSIONS (mm) AND WEIGHT (kg)

  Elexant variant 4020i 4020i-IS 4020i-3P 4020i-3P-IS Width  175.3 175.3 175.3 175.3 Height 180.9 182.7 180.9 182.7 Depth 137.8 137.8 137.8 137.8 Weight 1.2 1.3 1.3 1.3 Mounting lug holes 2 x M4 2 x M4 2 x M4 2 x M4 Mounting centres 134 134 134 134

• DOWNLOAD DOCUMENTS

  Data sheet: nVent RAYCHEM Elexant 4020i

  Installation manual: nVent RAYCHEM Elexant 4020i