TMOV25SP385M Littelfuse Inc, TMOV25SP385M Datasheet - Page 167
TMOV25SP385M
Manufacturer Part Number
TMOV25SP385M
Description
TMOV VARISTOR PB FREE 25S
Manufacturer
Littelfuse Inc
Series
iTMOV®r
Specifications of TMOV25SP385M
Varistor Voltage
682V
Current-surge
20kA
Number Of Circuits
1
Maximum Ac Volts
385VAC
Energy
430J
Package / Case
Disc 25mm 3-Lead
Suppressor Type
Varistor
Peak Surge Current @ 8/20µs
20000A
Varistor Case
25mm DISC
Clamping Voltage Vc Max
1010V
Peak Energy (10/1000us)
430J
Voltage Rating Vdc
682V
Voltage Rating Vac
385V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Maximum Dc Volts
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/tmov34s.html for current information.
Note: MOVs are non-polarized passive elements
Lead Configurations
TMOV34S
The application examples below show how the monitor lead on the TMOV34S
element has been opened. This signifies that the circuit is no longer protected from transients by the MOV.
Application Example 1
In this case, the LED is normally on, and is off when the
thermal element opens.
Application Example 2
This circuit utilizes an optocoupler to provide
galvanic isolations between the TMOV34S
varistor and the indicating or alarm circuitry.
Line
Line Fuse
Neutral
Line
Line Fuse
Neutral
TMOV34S “M”
®
Varistor
TMOV34S “M”
Varistor Application Examples
TMOV34S
Varistor
®
"E" 2-Lead Varistor
LED
R
R
AC OPTOCOUPLER
Thermal
Fuse
Element
MOV
Varistor Products
Industrial High Energy Thermally Protected Varistors > TMOV34S
®
TO STATUS
ANNUNCIATOR
LIGHT/ALARM
Revision: November 5, 2009
163
Application Example 3
This circuit illustrates the use of the monitoring lead of
the TMOV34S
operated when overvoltage protection present. In normal
operation the load switch relay solenoid is powered via the
monitor lead of the TMOV34S
thermal element being activated, the relay will de-activate,
cutting power to the protected circuit and the fault LED will
illuminate.
Please note: Indicator circuits are provided as a
guideline only. Verification of actual indicator circuitry
is the responsibility of the end user. Component
values selected must be appropriate for the specific
AC line voltage service and application.
Line
Line Fuse
Neutral
TMOV34S “M”
®
TMOV34S
Varistor
can be used to indicate that the thermal
®
1
varistor to ensure that equipment is only
2
®
Monitor Lead
3
"M" 3-Lead Varistor
Fault LED
(Normallyoff)
®
varistor. In the event of the
2
1
3
Load Switch Relay
(loss of protection)
Monitor Lead
TMOV34S
Thermal
Fuse
Element
R
"Load Powered"
neon lamp
MOV
®
Varistor Series
®
Series
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