nVent RAYCHEM E507S-LS Line Sensing Thermostat Instruction Manual

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E507S-LS  

Line-Sensing Thermostat for Hazardous Locations  

Installation Instructions  

DESCRIPTION  

The nVent RAYCHEM E507S-LS thermostat is designed for controlling  

heat-tracing systems in hazardous locations. The E507S-LS can be  

used to control heat-tracing circuits in a pipe-sensing mode (see  

Figure 1 on back page), to indicate low-temperature (see Figure 2) or  

high-temperature (see Figure 3) alarm conditions, or to control the coil  

on a contactor (see Figure 4).  

entair  

P

APPROVALS  

Hazardous locations  

Class I, Div. 1 and 2, Groups B, C, D  

Class II, Div. 1 and 2, Groups E, F, G  

Class III  

SPECIFICATIONS  

Ø.28 in. (7 mm)  

mounting hole  

(4X)  

4.5 in. (114 mm)  

4.0 in. (102 mm)  

Enclosure  

NEMA 4, 7, 9, lacquer-coated cast-aluminum  

housing, stainless-steel hardware  

Entries  

One 3/4 in. NPT conduit hub  

25°F to 325°F (–4°C to 163°C)  

4.0 in.  

(102 mm)  

4.5 in.  

(114 mm)  

Pentair  

Set point range  

8.0 in.  

(202 mm)  

Sensor exposure –40°F to 420°F (–40°C to 215°C)  

limits  

6.6 in.  

(168 mm)  

Housing exposure –40°F to 140°F (–40°C to 60°C)  

limits  

Switch  

SPDT  

Electrical rating  

22 A at 125/250/480 Vac  

Adjusting knob  

Removable knob cover  

Accuracy  

±6°F (±3.3°C)  

4.0 in. (102 mm)  

Deadband  

2°F to 12°F (1.1°C to 6.7°C) above actuation  

temperature  

1.2 in. (30 mm)  

0.3 in. (9 mm)  

Terminal  

block  

Set point  

±3°F (±1.7°C)  

repeatability  

2.0 in.  

(50 mm)  

Sensor type  

Fluid-filled (silicone) bulb and 9 ft (2.7 m)  

capillary  

Sensor material  

300 series stainless steel  

2

Connection  

terminals  

Screw terminals, 10–14 AWG (2–5 mm )  

3⁄4 in. NPT conduit entry  

WARNING:  

This component is an electrical device. It must be installed correctly to ensure  

proper operation and to prevent shock or fire. Read these important warnings  

and carefully follow all the installation instructions.  

Component approvals and performance are based on the use of specified parts  

only. Do not use substitute parts or vinyl electrical tape to make connections.  

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General	Details
Name	nVent RAYCHEM E507S-LS Line Sensing Thermostat Instruction Manual
Make	nVent
Language	English
Filetype	PDF (Download)
File size	0.31 MB

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nVent RAYCHEM E507S-LS Line Sensing Thermostat Instruction Manual Overview

Summary of Contents

• Page 1: Line-sensing thermostat for hazardous locations The nVent RAYCHEM E507S-LS thermostat is designed for controlling heat-tracing systems in hazardous locations. The E507S-LS can control heat-tracing circuits in a pipe-sensing mode, indicate low-temperature or high-temperature alarm conditions, or control the coil on a contactor. Approvals include hazardous locations Class I, Div. 1 and 2, Groups B, C, D; Class II, Div. 1 and 2, Groups E, F, G; and Class III. Enclosure is NEMA 4, 7, 9, lacquer-coated cast-aluminum housing with stainless-steel hardware. Set point range is 25°F to 325°F (–4°C to 163°C). Sensor exposure limits are –40°F to 420°F (–40°C to 215°C). Electrical rating is 22 A at 125/250/480 Vac. This component is an electrical device that must be installed correctly to ensure proper operation and to prevent shock or fire. Component approvals and performance are based on the use of specified parts only.
• Page 2: Tape the bulb firmly to the pipe with A T-180 aluminum tape, making sure there is no air space between the bulb and pipe. For metal-tank-wall sensing, use the BCK-35 bulb clamp and install the clamp per the instructions provided. Verify that the thermostat is suitable for the area where it is to be installed. Check the line voltage and the heat-tracing load to ensure that the thermostat ratings are not exceeded. Mount the unit using unistrut or the RAYCHEM universal mounting bracket in a position that prevents condensation from draining into the enclosure. Set the thermostat dial to the desired temperature, then finish wiring. Complete insulating. Do not turn the system on until the bulb is covered with thermal insulation. Once the thermostat has begun to cycle, check the fluid temperature with an immersed thermostat or an accurate temperature indicator. Position the bulb in the lower quadrant of the pipe as shown in the diagrams. Protect the capillary from kinks or bends less than 1⁄2 inch in radius.