Features and Benefits
Compact size requiring less panel space.
Low power consumption.
Same coil used on Sizes 00, 0, & 1.
Long mechanical life:
15 million operations Size 00
10 million operations Size 0-51/2
Long electrical life.
Easy to maintain Parts requiring replacement are
readily accessible and available.
Available in 128 countries around the world.
Dual frequency coil 50/60 Hz.
Meets or Exceeds NEMA, UL, CSA, VDE, IEC and
other major standards.
Auxiliary interlocks as standard:
1 NO & 1 NC Size 00
1 NO & 1 NC Size 0-51/2
Heavy duty ValueLine available, Sizes 5 thru 9.
Positive protection against unbalanced load
conditions such as single phasing.
Meets NEMA Class 10 tripping characteristics. (Trips
in less than 10 seconds at 600% of the motor current
Ambient temperature compensation on all R021
thermal overload relays from - 20°C to + 50°C.
Block type design with factory installed and
calibrated directly heated and sealed bimetal
elements assuring maximum tripping accuracy.
Desired tripping current setting range easily set with
Trip-free reset feature, convertible from manual
Normally open contact for alarm circuit.
Test button, trip indicator and snap-on cover (for
relays up to 45 amps only).
B600 rated contacts.