Profile: Canadian Shunt Industries Inc. offers a wide selection of DC ammeter shunts. We also supply telecom fused disconnects, knife switches, base mounted shunts and printed circuit boards. Our TFD-101 telecom fused disconnect is an alternative for low voltage, high current telecom systems. Its plug-in connectors eliminate the need for installation tools. Other connection methods are also available. It is designed to protect telecommunications circuits. It also provides a visual and remote warning, that an overload condition has occurred. Rear mounting to a telecom system with bullet type terminals is standard, but optimal screw type terminals are also available. The replaceable fuses are located in a removable cartridge accessible from the front of the unit. This compact fused disconnect is physically and electrically interchangeable with any circuit breakers. DC ammeter shunts are designed for use with 50/100 millivolt measuring instruments, calibrated in terms of the ampere ratings of the shunt. These are installed to protect them from damage by thermal expansion forces in the connecting bus bars/by short circuit forces. Telecom fused disconnect device design comprises a line side terminal, a loaded side terminal and a removable fuse holder protection assembly, installed on a housing. Their application is particularly suited to low voltage, high current electrical power distribution systems, where fuse-protected disconnect devices are required. Several batteries and power converters are connected together so that power is drawn from a wide number of sources.