Surge Protection Modules
Littelfuse prides itself on it’s globally-compliant, cost effective surge protection devices. The Type 2 Surge Protection Devices have higher nominal and total discharge current protection which helps limit transient overvoltage to equipment mitigating costly damage and downtime.
Surge protection devices (SPDs) provide equipment protection from transient overvoltage events lasting micro-seconds, by limiting the overvoltage to the equipment during these events reduces costly damage and downtime.
Browse Littelfuse's surge protection devices below.
SPD2 1P+0
The surge protection devices for the 1+0 configuration are available for 60V to 600V nominal voltage sub-distribution board applications.
Maximum Continuous Voltage: 150Vac, 300Vac, 350Vac, 480Vac, 550Vac, 75Vac, 750Vac
Nominal Discharge: 20kA
Maximum Discharge: 35kA, 50kA
SPD2 1P+1
The surge protection devices for the 1+1 configuration are available for 60V to 277V nominal voltage sub-distribution board applications.
Maximum Continuous Voltage: 150Vac, 300Vac, 350Vac, 75Vac
Nominal Discharge: 20kA
Maximum Discharge: 50kA
SPD2 2P+0
The surge protection devices for the 2+0 configuration are available for 120V to 600V nominalvoltage sub-distribution board applications.
Maximum Continuous Voltage: 150Vac, 300Vac, 350Vac, 480Vac, 550Vac, 750Vac
Nominal Discharge: 20kA
Maximum Discharge: 25kA, 50kA
SPD2 3P+0
The surge protection devices for the 3+0 configuration are available for 120V to 600V nominal voltage sub-distribution board applications.
Maximum Continuous Voltage: 150Vac, 300Vac, 350Vac, 480Vac, 550Vac, 750Vac
Nominal Discharge: 20kA
Maximum Discharge: 35kA, 50kA
SPD2 3P+1
The surge protection devices for the 3+1 configuration are available for 240V to 277V nominal voltage sub-distribution board applications.
Maximum Continuous Voltage: 300Vac, 350Vac
Nominal Discharge: 20kA
Maximum Discharge: 50kA
SPD2 4P+0
The surge protection devices for the 4+0 configuration are available for 120V to 480V nominal voltage sub-distribution board applications.
Maximum Continuous Voltage: 150Vac, 300Vac, 350Vac, 480Vac, 550Vac
Nominal Discharge: 20kA
Maximum Discharge: 50kA
SPD2 PV
The surge protection devices for solar string box and inverter applications are available in 1100 and 1500Vdc in the 3+0 configuration.
Maximum Continuous Voltage: 1100Vdc, 1500Vdc
Nominal Discharge: 15kA, 20kA
Maximum Discharge: 40kA
For further information on Littelfuse’s range of Surge Protection Devices, please call GD Rectifiers on: 01444 243 452 or email: .(JavaScript must be enabled to view this email address).

Littelfuse
Littelfuse is a global manufacturer of leading technologies in circuit protection, power control, and sensing. Littelfuse products are found in automotive and commercial vehicles, industrial applications, data and telecommunications, medical devices, consumer electronics, and appliances. They partner with customers to design, manufacture, and deliver innovative, high-quality solutions, for a safer, greener, and increasingly connected world—everywhere, every day.
Further information:
You can find further information on Littelfuse using the following links:
Tel: 01444 243 452
Fax: 01444 870 722
Email: enquiries@gdrectifiers.co.uk