Eaton MTL

MTL Instruments Group


Spur Connectors

If an Entity certified* field device needs to be added to a segment powered by a FISCO power supply, then a 9321-SC Entity spur connector can be used with a 9121-IS power supply and a 9323-SC Entity spur connector can be used with a 9122-IS power supply.

When connected between the segment and the device, it limits the power and with the 9323-SC the current, making the spur compatible with the safety description (24V, 250mA and 1.2W) of an Entity certified device.

• 9321-SC and 9323-SC connect FF816 entity certified devices to FISCO power supply segments
• DIN rail mounting.

If field devices are to be mounted in Zone 0, or have an electrical connection into Zone 0, then a 9322-SC spur connector can be used. This is connected in the spur to provide EEx ia current limiting.

The 9322-SC is designed to work with the 9121-IS IIC or 9122-IS IIB FISCO power supplies. This can only convert an ‘ib’ source to an ‘ia’ when the source voltage is clamped to ‘ia’ as with the 9121-IS and 9122-IS power supplies.

• 9322-SC connects devices located in Zone 0 to EEx ib fieldbus trunk
• DIN rail mounting.

For product certificates <click here>

* FF816 IS Entity physical layer profile

The 93xx-SC Spur Connectors range is not RoHS compliant, hence will only be supplied for spares & repairs within the EU from July 2017.

Product Code Description Downloads

intrinsically safe logo Symbol denotes that the equipment is suitable for use in hazardous area applications.
fsm logo Symbol denotes that the product has been assessed for functional safety applications

9321-SC   Entity Spur Connector Datasheet 
9322-SC   EEx ia Spur Connector Datasheet 
9323-SC   Entity Spur Connector Datasheet