The Bulletin 193-EC electronic overload relay component that is known as the 193-EC1ZZ relay is one of many available protective devices by Allen-Bradley/Rockwell Automation. The unit includes the CE, ABS, CCC, cUL, and C-Tick certifications, and it complies with standards like the CSA C22.2 (No. 14), EN 60947-4-1, and UL 508 standards. The overload relays from the 193-EC series offer programmable trip and warning settings, true RMS current sensing, ambient temperature compensation, LED indicators, compatibility with the DeviceNet network, and node address switches. The 193-EC1ZZ overload relay is an E3 relay variant with capabilities like thermal overload, current monitoring functions, diagnostic functions, stall, jam (overcurrent), ground fault, phase loss, and over-temperature protection.

 

The 193-EC1ZZ overload relay supports the M5 terminal type and three-pole terminal blocks. The unit is also available with terminal lug kits which are made in a couple of variants. The unit has maximum available fault current of 5000 Amps and maximum voltage of 600 Amps according to the UL standards. The power consumption of the control circuits on the 193-EC1ZZ relay is 3.2 Watts and the rated supply voltage is 24 Volts DC. The operating voltage range of the control circuits is 11 to 25 Volts DC. In regard to the available inputs and outputs, the 193-EC1ZZ overload relay has 2 inputs and a single output. The adjustable current rating of the unit is 9 to 5000 Amps and its contactor is panel mounted. The typical operating frequency of the unit is 20 to 250 Hertz. The E3 relay is a small component with an approximate weight of 0.8 kilograms or 1.7 pounds.

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