Solar Fuses
Littelfuse specialises in high quality speciality fuses, including: solar fuses, semiconductor fuses, telecommunications fuses, TVSS fuses, French cylindrical fuses, inline fuses, life truck fuses, telcom alarm indicating fuses, cable limiter fuses and plug fuses.
Littelfuse is a global leader in circuit protection and provides a wide selection of fuses, fuse holders, relays and controls to the photovoltaic industry. Photovoltaic designers have been using Littelfuse products in their applications for over 17million installations.
Littelfuse’s solar fuses are UL 248-19 recognised and provide extensive photovoltaic protection amongst PV applications.
Fuse Type | Voltage Rating |
Amperage Rating
|
Interrupting Rating | Time Constant | Material (Body) |
SPNH Series | 1500Vdc | 50, 63, 80, 100, 125, 160, 200, 250, 315, 350, 400 | 30kA | ≤ 2ms | Ceramic |
SPF Series | 1000Vdc | 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 25, 30 | 20kA: 1A - 20A, 50kA: 25A - 30A | ≤ 2ms | Melamine |
SPFS Series | 1000Vdc | 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 25, 30 | 20kA: 1A - 20A, 50kA: 25A - 30A | ≤ 2ms | Melamine |
SPFI Series | 1000Vdc | 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 15, 20, 25, 30 | 20kA | ≤ 1ms | Melamine |
SPFJ Series | 1000Vdc | 70, 80, 90, 100, 125, 160, 200, 250, 300, 350, 400, 450 |
AC: 125 - 450A, DC: 70-200A, 250-400A, 450A |
≤ 1ms | Melamine |
SPFR Series | 1000Vdc | 250, 300, 350, 400 | 10,000A | ≤ 1ms | - |
SPXV Series | 1500Vdc | 1, 2, 2.25, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 15, 20, 25, 30A | 15kA, 50AkA: 1A-20A, 30kA: 25A-30A | ≤ 1ms | Melamine |
SPXVS Series | 1500Vdc | 1, 2, 2.25, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 15, 20, 25, 30A | 15kA, 50kA: 1A-20A, 30kA: 25A-30A | ≤ 1ms | Melamine |
SPXI Series | 1500Vdc | 2.5, 3.5, 4, 4.5, 5, 6, 8, 10, 12, 15, 20, 25, 30 | 15kA, 30kA (self certified) | ≤ 1ms | Melamine |
SPXC Series | 1500Vdc | 1, 2, 2.25, 2.5, 3, 3.5, 4A | 15kA, 50kA (self certified) | ≤ 1ms | Melamine |
SPXC-S Series | 1500Vdc | 1, 2, 2.25, 2.5, 3, 3.5, 4A | 15kA, 50kA (self certified) | ≤ 1ms | Melamine |
For further information on Littelfuse's Solar Fuses, please call our team 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
