Square D (Schneider Electric) ZCE01 XC Limit Switch Head. Telemecanique OsiSense XC Square D Limit Switch Head, Standard, Series: ZCE, Rotary Actuator, Left/Right Actuator Location, For Use With: XCKD, XCKP, XCKT, XCMD, ZCE Rotary Head Limit Switch, -25 to 70 deg C, 6 in L x 6 in W x 2 in H Dimensions. Additional Description: SQD -ZCE01 Limit Switch Rotary Head ZCE + Options OPTIONS. Catalog Description: Osiswitch, limit switch head, ZCE, without lever, spring return, left and right actuation.