MTR Power Distribution Fuseholder Littelfuse MTR Power Distribution Fuseholder offers a 32VDC maximum voltage range, IP67 ingress protection, and up to 100A input current rating. This holder accommodates two MINI® fuses and two JCASE® fuses, the four fuses are bussed internally to the main input power stud, allowing the user to reduce wiring by making one input connection to power four fuse circuits. Littelfuse MTR Power Distribution Fuseholder is sealed, enabling it to be used in heavy duty environments.