PolySwitch LVR/LVRL
Line Voltage Rated Devices
PolySwitch LVR devices help protect electric motors and transformers used in commercial and
home appliances from damage caused by mechanical overloads, overheating, stall, lost neutral
and other potentially harmful conditions.
The PolySwitch LVR product line of polymeric positive thermal coefficient (PPTC) line voltage
devices includes components that are rated for line voltages of 120 VAC and 240 VAC, for up to 2A
of operating current at 20°C. They help protect against damage caused by both overcurrent surges
and overtemperature faults, offer low resistance, and are compatibly sized with fuse solutions.
Unlike single-use fuses, PolySwitch devices do not require replacement after a fault event. After
power has been removed and the overcurrent condition eliminated, the circuit is restored to normal
operating condition. Compared to bimetal breakers, they offer greater flexibility, longer lifespan, and lower EMI.
The PolySwitch LVR devices' resettable functionality and latching attributes make them a reliable, cost-effective circuit protection solution for both intermittent- and continuous-operation motor applications. Their low resistance, fast time-to-trip, and low profile help circuit
designers provide a safe and dependable product, comply with regulatory agency requirements, and reduce warranty repair costs.
Benefits:
Features:
Applications:
• Reduced board space and assembly
• Reduced repair and replacement cost
• Fast time-to-trip helps reduce currentgenerated heat to motor windings and
sensitive electronic components
• Reduced nuisance tripping
• Overcurrent and overtemperature protection in a single component
• Resettable functionality
• Latching device
• Compliant with UL 1434 safety standards
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Continuous-operation motors
Intermittent-operation motors
Transformers
Power supplies
Fans and blowers
Electronic controllers
Electrical Characteristics
Part
Number
NEW
NEW
NEW
NEW
LVR005K
LVR005S
LVR008K
LVR008S
LVR012K
LVR012S
LVR016K
LVR016S
LVR025K
LVR025S
LVR033S
LVR033K
LVR040K
LVR040S
LVR055K
LVR055S
LVR075S
LVR100S
LVR125S
LVR200S
LVRL075S
LVRL100S
LVRL125S
LVRL135S
LVRL200S
IHOLD
(A)
ITRIP
(A)
VMAX
(V)
VMAX
Interrupt
(VAC)
IMAX
Interrupt
(A)
0.05
0.05
0.08
0.08
0.12
0.12
0.16
0.16
0.25
0.25
0.33
0.33
0.40
0.40
0.55
0.55
0.75
1.00
1.25
2.00
0.75
1.00
1.25
1.35
2.00
0.12
0.12
0.19
0.19
0.30
0.30
0.37
0.37
0.56
0.56
0.74
0.74
0.90
0.90
1.25
1.25
1.5
2.00
2.50
4.00
1.52
2.00
2.50
2.70
4.20
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
120
120
120
120
120
265
265
265
265
265
265
265
265
265
265
265
265
265
265
265
265
265
265
265
265
135
135
135
135
135
1.0
1.0
1.2
1.2
1.2
1.2
2.0
2.0
3.5
3.5
4.5
4.5
5.5
5.5
7.0
7.0
7.5
10.0
12.5
20.0
7.5
10.0
12.5
13.5
20.0
Power
Dissipation Typ
(W)
0.7
0.7
0.8
0.8
1.0
1.0
1.4
1.4
1.5
1.5
1.7
1.7
2.0
2.0
3.4
3.4
2.6
2.9
3.3
4.5
1.8
2.2
2.0
2.8
3.9
Max.
Time-to-trip
(A)
(s)
0.25
0.25
0.40
0.40
0.60
0.60
0.80
0.80
1.25
1.25
1.65
1.65
2.00
2.00
2.75
2.75
3.75
5.00
6.25
10.00
3.75
5.00
6.25
6.75
10.00
RMIN
(Ω)
15.0
15.0
15.0
15.0
15.0
15.0
15.0
15.0
18.5
18.5
21.0
21.0
24.0
24.0
26.0
26.0
18.0
21.0
23.0
28.0
14.0
13.6
18.0
20.0
36.0
RMAX
(Ω)
R1 MAX
(Ω)
Lead Size
[mm2 (AWG)]
18.50
18.50
7.40
7.40
3.00
3.00
2.50
2.50
1.30
1.30
0.77
0.77
0.60
0.60
0.45
0.45
0.32
0.22
0.17
0.09
0.25
0.18
0.12
0.11
0.08
31.00
31.00
12.00
12.00
6.50
6.50
4.10
4.10
2.10
2.10
1.24
1.24
0.97
0.97
0.73
0.73
0.48
0.33
0.18
0.13
0.40
0.27
0.18
0.17
0.12
65.00
65.00
26.00
26.00
12.00
12.00
7.80
7.80
3.80
3.80
2.60
2.60
1.90
1.90
1.45
1.45
0.84
0.58
0.44
0.22
0.69
0.47
0.32
0.30
0.21
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