Product details
Chemelex has introduced the new Raychem Elexant 3500i family of electronic thermostats, delivering flexible, connected, and reliable heat tracing control for industrial applications. Available in wall-mounted and pipe-mounted configurations, the Elexant 3500i combines fast installation with advanced features, including Bluetooth and RS-485 connectivity, alarming, current sensing, ground fault detection, and automated 24-hour system checks. Configuration is simple with the Elexant Connect App, while Modbus RTU communication enables seamless integration with distributed control systems (DCS). The configurable platform allows users to select the functionality they need, helping reduce installation costs, improve system reliability, and minimize downtime
Available in 5 interchangeable variants - wall mounted (W-E) or pipe mount (P-E)
| Variant (Elexant-35001-) | Standard (ST*) | Alarm (AR*) | Commmunicating (C*) | Current Sensing (I*) | Groud Fault Detecting (GF*) |
| Modualr design | ![]() | ![]() | ![]() | ![]() | ![]() |
| Quick connect | ![]() | ![]() | ![]() | ![]() | ![]() |
| Local indicator light | ![]() | ![]() | ![]() | ![]() | ![]() |
| Alarm relay | ![]() | ![]() | ![]() | ![]() | |
| Temperature sensors | 1 | 1 | 1 | 2 | 2 |
| Secured configuration | ![]() | ![]() | ![]() | ||
| Central communication | ![]() | ![]() | ![]() | ||
| Auto-test | ![]() | ![]() | |||
| Load sensing | ![]() | ![]() |
Explore the features and benefits of Elexant 3500i:
| Fast Installation, minimal components | ||
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| Flexible design, reliable performance | ||
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| Easier installation. Secured configuration | ||
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| Full connectivity. Anytime. Anywhere | ||
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- TECHNICAL DETAILS
Environmental Compliance RoHS and Reach Area of Use non-hazardous area
hazardous areas Zone 1 and Zone 2 (Gas) Zone 21 and Zone 22 (Dust)Temperature classification T4 Exposure temperature range -55°C to +60°C Storage temperature range -55°C to +80°C Relative humidity 0 to 90% non-condensing Maximum altitude 2000m Maximum pipe temperature 205°C Electrical Supply voltage 100 V AC to 277 V AC ±10% 50/60 Hz Power consumption 15 VA Terminals L,N & PE: 6 x 25 mm²
alarm: 2 x 2.5 mm²
sensor: 4 x 2.5 mm² (standard, alarm & communicating variants)
sensor : 8 x 2.5 mm² (current sensing & ground fault detecting variants)
RS-485: 3 x 2.5 mm²Current, maximum 32 A @ 40°C linearly derated to 24A @ 60°C Alarm relay 2 A / 100 V AC to 277 V AC, programmable Temperature range controller -17°C to 550°C (-ST & -AR variants)
-55°C to 550°C (-C & -I and -GF variants)Voltage measured 100 Vac to 277 Vac, 50-60 Hz, +/- 10% Load current measured Low current alarm threshold (0.1 A) Ground fault current 30 mA to 50 mA. UL1053 compliant Heater time alarm from 1 to 1 x 106 hours Relay cycle alarm from 0 to 2 x 106 hours Electrical safety EN 61010-1, Category III, Pollution degree 2 Vibration and Shock Shock 1/2 sine wave of 11 ms duration, 15 g
Vibration sine wave 10 to 150 Hz (p-p), 2 gProgramming Method 1. handheld programming device and wireless Bluetooth connection via Elexant Connect software
2. RS485 interface and chemelex® Raychem Supervisor software
3. chemelex® Raychem User Interface Terminal (NGC-UIT) or Touch1500 and chemelex® Raychem softwareUnts of measure °C or °F, software selectable Memory Non-volatile, no loss of parameters after power outage or long term shut down, data holding time ~ 10 years
LED indicators Elexant 3500i Green ON - Power on, heating off
Green On/Off - Power on, heatig on, limiter output on
Yellow ON - High temperature, low temperatue, low current, GF alarm, Cycle count, Heater on time alarm
Red ON - Sensor fail,swich fail, limiter trip, high temperature cutout, internal failure, ground fault trip, GF CT tripAlarm conditions Low / High temperature, low current, RTD failure, loss of programmed values, ground fault alarm, ground fault trip, relay failure, limiter trip, relay lifetime exceeded, heat trace cable lifetime exceeded Communication Communication port RS-485 and Bluetooth BLE 5.1 encrypted Type 2-wire RS-485 Cable One shielded twisted pair 0.5 mm² (not included) Length up to 1,200 m Quantity up to 247 devices per port Protocol Modbus RTU Enclosure Material Glass fibre reinforced with internal earth plate Ingress protection IP 66 per IEC-60529 Entries Wall mount: 4 x M25 pre-drilled (plugged) Pipe mounting Direct pipe mount: 1 x integral pipe standard, 2 x M25 entries pre-drilled (plugged) Sensors (standard - must be ordered separately) Type PT100 3 wire Raychem MONI-PT100-260/2
Raychem MONI-PT100-260/5
Raychem MONI-PT100-260/10
Raychem MONI-PT100-EXE
Raychem MONI-PT100-EXE-SENSOR
Raychem MONI-PT100-EXE-AMB - APPROVALS
APPROVALS ATEX, IECEx - DIMENSIONS
DIMENSIONS AND WEIGHT Width 206 mm Height 160 mm (excluding pipe mount)
282 mm (including pipe mount)Depth 90 mm Weight pipe variants: 3.4 kg
wall mount variants: 2.9 kg - DOWNLOAD DOCUMENTS









