Atlanta Counter IEC Contactors & Overloads Selection Guide

IEC Contactors & Overloads

These electrically controlled switches are designed for switching a power circuit. They operate in a similar way to a relay, but with higher current ratings. They provide automatic cutoff in the event of a power failure, but they do not provide overload protection. Featuring an energy-efficient design, the contactors allow easy assembly of components to form motor starters. The modular design includes screw terminals and plug-in accessories.

To view the corresponding accessories for contactors below, click on the part number and "view the accessories."

Frame Sizes:

S00 | S0 | S2

Contactor Amp Ratings: 7-16 | 9-38 | 40-80

Overload Amp Ratings: 0.1-16 | 3-40 | 12-80

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Contactors Size - S00

Part Number Terminals Coil Voltage Amp Rating Aux Contacts HP Rating at 208/230/460v
3RT2015-1AB01 Screw 24v AC 7 1 NO 1.5/2/3 HP
3RT2015-1AK61 Screw 120v AC 7 1 NO 1.5/2/3 HP
3RT2016-1AB01 Screw 24v AC 9 1 NO 2/3/5 HP
3RT2016-1AB02 Screw 24v AC 9 1 NC 2/3/5 HP
3RT2016-1AK61 Screw 120v AC 9 1 NO 2/3/5 HP
3RT2017-1AB01 Screw 24v AC 12 1 NO 3/3/7.5 HP
3RT2017-1AK61 Screw 120v AC 12 1 NO 3/3/7.5 HP
3RT2018-1AB01 Screw 24v AC 16 1 NO 3/5/10 HP
3RT2018-1AK61 Screw 120v AC 16 1 NO 3/5/10 HP


Overloads Size - S00


Part Number Terminals Amp Rating Aux Contacts
3RB3016-1RB0 Screw 0.1-0.4A 1 NO / 1 NC
3RB3016-1NB0 Screw 0.32-1.25A 1 NO / 1 NC
3RB3016-1PB0 Screw 1-4A 1 NO / 1 NC
3RB3016-1SB0 Screw 3-12A 1 NO / 1 NC
3RB3016-1TB0 Screw 4-16A 1 NO / 1 NC


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Contactor Size - S0

Part Number Terminals Coil Voltage Amp Rating Aux Contacts HP Rating at 208/230/460v
3RT2023-1AK60 Screw 120v AC 9 1 NO / 1 NC 2/3/5 HP
3RT2024-1AC20 Screw 24v AC 12 1 NO / 1 NC 3/3/7.5 HP
3RT2025-1AK60 Screw 120v AC 16 1 NO / 1 NC 5/5/10 HP
3RT2026-1AC20 Screw 24v AC 25 1 NO / 1 NC 7.5/7.5/15 HP
3RT2026-1AK60 Screw 120v AC 25 1 NO / 1 NC 7.5/7.5/15 HP
3RT2028-1AK60 Screw 120v AC 38 1 NO / 1 NC 10/10/25 HP

Overloads Size - S0

Part Number Terminals Amp Rating Aux Contacts
3RB3026-1SB0 Screw 3-12A 1 NO / 1 NC
3RB3026-1QB0 Screw 6-25A 1 NO / 1 NC w/ Reset
3RB3026-1VB0 Screw 10-40A 1 NO / 1 NC

Contactor Size - S2

Part Number Terminals Coil Voltage Amp Rating Aux Contacts HP Rating at 208/230/460v
3RT2035-1AC20 Screw 24v AC 40 1 NO / 1 NC 10/15/30 HP
3RT2035-1AK60 Screw 120v AC 40 1 NO / 1 NC 10/15/30 HP
3RT2036-1AC20 Screw 24v AC 50 1 NO / 1 NC 15/15/40 HP
3RT2036-1AK60 Screw 120v AC 50 1 NO / 1 NC 15/15/40 HP
3RT2037-1AK60 Screw 120v AC 65 1 NO / 1 NC 20/20/50 HP
3RT2038-1AK60 Screw 120v AC 80 1 NO / 1 NC 20/25/50 HP

Overload Size - S2

Part Number Terminals Amp Rating Aux Contacts
3RB3036-1UB0 Screw 12-50A 1 NO / 1 NC
3RB3036-1WB0 Screw 20-80A 1 NO / 1 NC