Over Voltage Protection

Suppressor diodes, metal oxide varistors and gas arresters are among the components that Alpha Therm offers for reliable overvoltage protection.
Metal-Oxide-Varistor TVR05561
Metal-Oxide-Varistor TVR05561
Metal-Oxide-Varistor TVR05561
Varistor Voltage (@ 1mA DC): 560 (504~616) V
Max. Continuous Voltage: 350 VAC / 450 VDC
Max. Clamping Voltage (8/20μs): 962 V / 5.0 A
Max. Surge Current (8/20μs): 400 A
Rated Power: 0.1 W
Max. Energy (10/1000μs): 18 J
Diameter: 5mm
Price on request
Metal-Oxide-Varistor TVR05621
Metal-Oxide-Varistor TVR05621
Metal-Oxide-Varistor TVR05621
Varistor Voltage (@ 1mA DC): 620 (558~682) V
Max. Continuous Voltage: 395 VAC / 510 VDC
Max. Clamping Voltage (8/20μs): 1050 V / 5.0 A
Max. Surge Current (8/20μs): 400 A
Rated Power: 0.1 W
Max. Energy (10/1000μs): 18 J
Diameter: 5mm
Price on request
Metal-Oxide-Varistor TVR05681
Metal-Oxide-Varistor TVR05681
Metal-Oxide-Varistor TVR05681
Varistor Voltage (@ 1mA DC): 680 (612~748) V
Max. Continuous Voltage: 420 VAC / 560 VDC
Max. Clamping Voltage (8/20μs): 1120 V / 5.0 A
Max. Surge Current (8/20μs): 400 A
Rated Power: 0.1 W
Max. Energy (10/1000μs): 18 J
Diameter: 5mm
Price on request
Metal-Oxide-Varistor TVR05751
Metal-Oxide-Varistor TVR05751
Metal-Oxide-Varistor TVR05751
Varistor Voltage (@ 1mA DC): 750 (675~825) V
Max. Continuous Voltage: 465 VAC / 615 VDC
Max. Clamping Voltage (8/20μs): 1240 V / 5.0 A
Max. Surge Current (8/20μs): 400 A
Rated Power: 0.1 W
Max. Energy (10/1000μs): 18 J
Diameter: 5mm
Price on request
Metal-Oxide-Varistor TVR07180
Metal-Oxide-Varistor TVR07180
Metal-Oxide-Varistor TVR07180
Varistor Voltage (@ 1mA DC): 18 (16~20) V
Max. Continuous Voltage: 11 VAC / 14 VDC
Max. Clamping Voltage (8/20μs): 36 V / 2.5 A
Max. Surge Current (8/20μs): 250 A
Rated Power: 0.02 W
Max. Energy (10/1000μs): 0.9 J
Diameter: 7mm
Price on request
Metal-Oxide-Varistor TVR07220
Metal-Oxide-Varistor TVR07220
Metal-Oxide-Varistor TVR07220
Varistor Voltage (@ 1mA DC): 22 (20~24) V
Max. Continuous Voltage: 14 VAC / 18 VDC
Max. Clamping Voltage (8/20μs): 43 V / 2.5 A
Max. Surge Current (8/20μs): 250 A
Rated Power: 0.02 W
Max. Energy (10/1000μs): 1.1 J
Diameter: 7mm
Price on request
Metal-Oxide-Varistor TVR07270
Metal-Oxide-Varistor TVR07270
Metal-Oxide-Varistor TVR07270
Varistor Voltage (@ 1mA DC): 27 (24~30) V
Max. Continuous Voltage: 17 VAC / 22 VDC
Max. Clamping Voltage (8/20μs): 53 V / 2.5 A
Max. Surge Current (8/20μs): 250 A
Rated Power: 0.02 W
Max. Energy (10/1000μs): 1.4 J
Diameter: 7mm
 
Price on request
SD25T1000L312PV
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SD25T1000L312PV
SD25T1000L312PV
Surge Protective Device for PV
Nominal System Voltage Un: 1000 VDC
Max. Continuous Operating Voltage Ucpv: 1000VDC
Nominal Discharge Current In (8/20us): 25kA
Max. Discharge Current Imax (8/20us): 50kA
Impuls-Discharge Current Iimp (10/350us): 10kA
Voltage Protection Level Up: 4.2kV
Modes of Protection: Y
SPD according EN 61643-11: 
Class I + Class II
Sliding scale prices:
10-23 Pieces per 43,50 EUR
24-47 Pieces per 39,90 EUR
> 47 Pieces per 37,60 EUR
43,50 EUR
plus 19% tax excl. Shipping costs
Pieces:
 
25 to 32 (from a total of 33)