POLYSWITCH 40AMP 60V RXE375-ND

This section has two parts:
• A Selection Guide that walks you through the process of
selecting the correct RXE device for a circuit.
• Product Data that outlines electrical characteristics,
physical characteristics, agency recognitions, environmental
specifications, component layouts, tape and reel specifications,
and ordering information for RXE devices.
RXE Selection Guide
Follow these seven steps to select a PolySwitch RXE device for
a circuit:
1. Define the operating parameters for the circuit.
These include:
• Maximum ambient operating temperature
• Normal operating current
• Maximum operating voltage (RXE is 60 V maximum)
• Maximum interrupt current
2. Select the RXE device that accommodates the circuit’s maximum
ambient operating temperature and normal operating current.
3. Compare the RXE device’s maximum operating voltage and
maximum interrupt current with the circuit’s to be sure the circuit
does not exceed the device ratings.
4. Check the RXE device’s time-to-trip to be sure it will protect the
circuit.
5.Verify that the circuit’s ambient operating temperatures are within the
RXE device’s operating temperature range.
6.Verify that the RXE device’s dimensions fit the application’s space
considerations.
7. Independently evaluate and test the suitability and performance
of the RXE device in the application.
Raychem Circuit Protection Devices RXE Devices 165
RXE Selection Guide
and Product Data
â TUV Rheinland
®
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1. Define the circuit’s operating parameters.
Fill in the following information about the circuit:
Maximum ambient operating temperature ________________
Normal operating current ________________
Maximum operating voltage (RXE is 60 V max.) ________________
Maximum interrupt current ________________
2. Select the PolySwitch RXE device that will accommodate the
circuit’s maximum ambient operating temperature and normal
operating current.
Look across the top of the table on the next page to find the temperature
that most closely matches the circuit’s maximum ambient operating
temperature. Look down that column to find the value equal to or
greater than the circuit’s normal operating current. Now look to the far
left of that row to find the part number for the RXE device that will best
accommodate the circuit.
The thermal derating curve located on the next page is a normalized
representation of the data in the table located on the same page.
166 RXE Devices Raychem Circuit Protection Devices
RXE Radial Leaded
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Raychem Circuit Protection Devices RXE Devices 167
RXE Radial Leaded
Device’s ambient temperature (°C)
–40 –20 0 20 40 60 80
0
Percent of rated hold
and trip current
50
100
150
200
Thermal derating curve
IHold vs. temperature
Part Maximum ambient operating temperatures (°C)
number –40° –20° 0° 20° 40° 50° 60° 70° 85°
RXE010 0.16 0.14 0.12 0.10 0.08 0.07 0.06 0.05 0.04
RXE017 0.26 0.23 0.20 0.17 0.14 0.12 0.11 0.09 0.07
RXE020 0.31 0.27 0.24 0.20 0.16 0.14 0.13 0.11 0.08
RXE025 0.39 0.34 0.30 0.25 0.20 0.18 0.16 0.14 0.10
RXE030 0.47 0.41 0.36 0.30 0.24 0.22 0.19 0.16 0.12
RXE040 0.62 0.54 0.48 0.40 0.32 0.29 0.25 0.22 0.16
RXE050 0.78 0.68 0.60 0.50 0.41 0.36 0.32 0.27 0.20
RXE065 1.01 0.88 0.77 0.65 0.53 0.47 0.41 0.35 0.26
RXE075 1.16 1.02 0.89 0.75 0.61 0.54 0.47 0.41 0.30
RXE090 1.40 1.22 1.07 0.90 0.73 0.65 0.57 0.49 0.36
RXE110 1.71 1.50 1.31 1.10 0.89 0.79 0.69 0.59 0.44
RXE135 2.09 1.84 1.61 1.35 1.09 0.97 0.85 0.73 0.54
RXE160 2.48 2.18 1.90 1.60 1.30 1.15 1.01 0.86 0.64
RXE185 2.87 2.52 2.20 1.85 1.50 1.33 1.17 1.00 0.74
RXE250 3.88 3.40 2.98 2.50 2.03 1.80 1.58 1.35 1.00
RXE300 4.65 4.08 3.57 3.00 2.43 2.16 1.89 1.62 1.20
RXE375 5.81 5.10 4.46 3.75 3.04 2.70 2.36 2.03 1.50