Toshiba Current Relay RC803A-HP1 - Manual (Page 3)

Please thoroughly read this instruction before using the
Current Relay.
1. General
This current relay is designed to detect current in AC circuits
with a wide range of detection of abnoraai
current of electrical due to overloads or broken
c i r c u i t s heater circuits), detection of starting current to
autoaaticaiiy advance the secondary resistance on induction wound
rotor motor controllers.
During starting, excessive current such as inrush current,
exceed rated current flow in motor transforaer circuits. t h i s
current relay has an adjustable delay circuit to prevent it
operating during start-up.
F u r t h e r , t h i s c u r r e n t i s f a i l s a f e . T h e r e l a y
at the control Dower is applied. and the relay is
energized when the exceeds the level or control
Dower is removed.
2. Check Before Using
Before this relay. check the following Doints. If any
defects are found, contact the dealer which you purchased this
relay.
2.1 External
Check the relay for any missing Darts and for damage, dirt,
rust, and loosened caused during transportation.