Littelfuse/Commercial Vehicle Products

Littelfuse 407 Series is a 100% Lead-free, RoHS compliant and Halogen-free fuse designed specifically to provide overcurrent protection to circuits that operate under high working ambient temperatures up to 150º C and high in-rush currents. The general design ensures excellent temperature stability and performance reliability. This high I2t time lag fuse is designed to have ultra-high in-rush current withstand capability to avoid nuisance fuse open.

Littelfuse 407 Series is a 100% Lead-free, RoHS compliant and Halogen-free fuse designed specifically to provide overcurrent protection to circuits that operate under high working ambient temperatures up to 150º C and high in-rush currents. The general design ensures excellent temperature stability and performance reliability. This high I2t time lag fuse is designed to have ultra-high in-rush current withstand capability to avoid nuisance fuse open.

Littelfuse 407 Series is a 100% Lead-free, RoHS compliant and Halogen-free fuse designed specifically to provide overcurrent protection to circuits that operate under high working ambient temperatures up to 150º C and high in-rush currents. The general design ensures excellent temperature stability and performance reliability. This high I2t time lag fuse is designed to have ultra-high in-rush current withstand capability to avoid nuisance fuse open.

The 422A is a 250 V rated Wire-in-Air Surface Mount AEC-Q200 Qualified fuse are specifically tested to cater to secondary circuit protection needs of compact auto electronics applications. The wire-in-air design of the 422A Series results in a relatively high I²t in a 2410 size. * Largely based on Littelfuse internal AEC-Q200 test plan for DC application.

The 422 Series fuse is a 250 V rated Wire-in-Air Surface Mount Fuse, designed specifically to provide circuit protection to space constrained application. The wire-in-air design of the 422 Series results in a relatively high I²t in a 2410 size.

The 440 Series is a 100% Lead-free, RoHS compliant and Halogen-free fuse series designed specifically to provide over-current protection to circuits that operate under high working ambient temperatures up to 150°C and high inrush currents. The general design ensures excellent temperature stability and performance stability. This high I2t fuse series is designed to have ultra high inrush current withstand capability to avoid nuisance fuse open.

The 440 Series is a 100% Lead-free, RoHS compliant and Halogen-free fuse series designed specifically to provide over-current protection to circuits that operate under high working ambient temperatures up to 150°C and high inrush currents. The general design ensures excellent temperature stability and performance stability. This high I2t fuse series is designed to have ultra high inrush current withstand capability to avoid nuisance fuse open.

The Nano2® SMF Fuse is a very small, Wire-in-Air (WIA) square shape surface mount fuse which is very suitable for the secondary side circuit over-current protection applications and is designed for PCB using surface mount technology.

The 460-100-SP is used on 95-120VAC, 50*/60Hz single-phase motors and the 190-240VAC, 50*/60Hz single-phase motors to protect them from damaging high and low voltage conditions. An adjustment knob allows the user to set a 1-500 second restart delay. The variable restart delay is also a power-up delay and can be utilized to stagger-start motors on the same system. A unique microcontroller-based, voltage-sensing circuit constantly monitors the voltage to detect harmful power line conditions. When a harmful condition is detected, the relay’s output relay is deactivated after a specified trip delay. The output relay reactivates after power line conditions return to an acceptable level and a specified amount of time has elapsed (restart delay). The trip delay prevents nuisance tripping due to rapidly fluctuating power line conditions.

The 460 is a 3-phase voltage monitor that protects 190-480VAC or 475-600V, 50/60Hz motors regardless of size. The product provides a user selectable nominal voltage set point and the voltage monitor automatically senses line voltage. This unique microcontroller-based voltage and phase-sensing device constantly monitors the 3-phase voltages to detect harmful power line conditions such as low, high, and unbalanced voltage, loss of any phase, and phase reversal. When a harmful condition is detected, the 460 output relay is deactivated after a specified trip delay. The output relay reactivates after power line conditions return to an acceptable level for a specified amount of time (restart delay). The trip and restart delays prevent nuisance tripping due to rapidly fluctuating power line conditions. All 460 models feature adjustable 1-30 second trip delay, 1-500 second restart delay, 2-8% voltage unbalance trip point, and one form C contact except where noted.