Eaton MTL spur connectors
Crouse-Hinds series MTL 9321-SC and 9323-SC Spur Connectors are for use with FF816 Entity certified devices that need to be added to a segment powered by our MTL 9121-IS or 9122-IS FISCO power supply. The MTL 9321-SC and 9323-SC is connected in the spur to limit the power for compatibility with the safety description of an Entity certified device, 24V, 250mA and 1.2W.
If field devices are to be mounted in Zone 0, or have an electrical connection into Zone 0 requiring EEx ia certification of the devices, then an MTL 9322-SC spur connector can be used. This is connected in the spur providing EEx ia current limiting. The 9322-SC is designed to work with our MTL 9121-IS IIC or 9122-IS IIB FISCO power supplies.