Schneider Thermal Overload Relay Manual

The schneider electric gould aeg type b thermal overload relays have three bimetal strips combined with a snap action operating mechanism enclosed with a molded plastic casing.

Schneider thermal overload relay manual. Overload relays from 0 16 to 630 a thermal overload relays for use with tesys k contactors type of product range pages adjustable thermal overload relays for motors tesys lrk from 0 16 to 16 a b11 2 adjustable thermal overload relays for unbalanced loads tesys lrk from 0 8 to 16 a b11 3 thermal overload relays class 10 a for use with tesys. As an overload current develops the direct heated strips heat up and deflect. Fractional horsepower manual starters with melting alloy type thermal overload relay single unit types class 2510 rated 16 a thermal units see thermal unit selection type of operator no of poles features. For a b19 5 thermal unit 100 corresponds to 19 5.

Under overload conditions the heat causes a special solder to melt allowing a ratchet wheel to spin free thus opening the control circuit contacts. In melting alloy thermal overload relays the motor current passes through a small heater winding. Overload relays thermal overload relays for use with tesys k contactors type of product range pages adjustable thermal overload relays for motors tesys lrk from 0 16 to 16 a b11 2 adjustable thermal overload relays for unbalanced loads tesys lrk from 0 8 to 16 a b11 3 thermal overload relays class 10 a for use with tesys d contactors. Manual starters and switches selection guide catalog 2510ct9701r01 16 2016 class 2510 2511 2512 2601 contents fractional horsepower manual starters type f.

Percent of thermal unit number element number or relay rating is obtained by dividing the overload current by the number stamped on the thermal unit nameplate and multiplying by 100. Overload relays thermal overload relays for use with tesys k contactors type of product range pages adjustable thermal overload relays for motors tesys lrk from 0 16 to 16 a b11 2 adjustable thermal overload relays for unbalanced loads tesys lrk from 0 8 to 16 a b11 3 thermal overload relays class 10 a for use with tesys d contactors. Manual motor protectors can keep equipment from overheating and overloading. When this occurs the relay is said to trip.

Shunting thermal units during starting period 10 overcurrent protection for 3 wire control circuits 11 ac manual starters and manual motor starting switches 12 class 2510 12 class 2511 and 2512 13 2 speed ac manual starters and. Motor overload relays and thermal units help prevent motor damage and extend motor life.