As shown in the illustrated electronic...

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Question 1 of 205eccefa4bacbc34ba4d482d4

As shown in the illustrated electronic overload relay, if it is desired to connect the relay to the operating coil for tripping purposes, what terminals would the operating coil be associated with in completing the series circuit? See illustration EL-0182.

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🔍 Key Concepts

• Identify which numbered terminals are auxiliary contacts (normally closed / normally open) versus which are power supply inputs to the relay electronics • Remember that an overload relay trips a motor starter by opening a normally closed contact in series with the starter (operating) coil • On many industrial overload relays, terminals marked 95–96 and 97–98 have standard meanings—compare these to A3+ and A4- on the nameplate

💭 Think About

• Which contact pair on this relay would open the circuit to the operating coil when an overload occurs, thus stopping the motor? • If the operating coil must be in series with a normally closed trip contact, which pair of terminals is most likely the NC contact based on common numbering and the physical labeling in the illustration? • Are A3+ and A4- more likely to be control power inputs or series contacts for an external coil, based on their "+" and "-" markings?

✅ Before You Answer

• Verify from the illustration which terminal pairs are mechanical relay contacts and which are marked as a control power supply (look for "+" and "-" signs) • Confirm that the pair you choose would be closed during normal operation and open on overload, suitable for being wired in series with the operating coil • Make sure you are not selecting a pair that includes one power input terminal and one auxiliary contact terminal, which would not form a proper series path for the coil

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