ABB
AF contactors
3P and dedicated 4P families
Use the selected AF series ratings for load duty, voltage and coil supply.
Manufacturer data & documents ↗COMPONENT FAMILIES / Motor protection & control
Contactors
Motor switching and resistive-load switching, grouped into one family. AC-3 motor-duty and AC-1 resistive-duty ratings are separate; compare at the specified voltage and temperature.
- Range / configuration
- AC-3: 9–630 A · AC-1: 20–1000 A
- Pole options
- 3P & 4P
- Catalogue brands
- ABB · LOVATO · Schneider Electric · CHINT
APPLICATION GUIDE
Motor and power switching
AC-3 describes motor-switching duty while AC-1 covers non-inductive or slightly inductive loads. The two ratings are not interchangeable. A fourth main pole is distinct from an auxiliary contact and its permitted duty depends on the selected series.
Typical applications: Pumps, conveyors, HVAC equipment, heating and controlled power circuits.
SELECTION AT A GLANCE
Range / configuration
AC-3: 9–630 A · AC-1: 20–1000 A
3P & 4P
- 3-pole motor switching
- 4-pole power switching
- reversing and auxiliary-contact arrangements
Selected catalogue coverage across brands and series, not the limits of every brand. Coil supplies and accessories vary.
Pole count describes the switching arrangement, not the complete protective function. Check which conductors are switched, which are protected and how the neutral is handled in the selected device.
Manufacturer families & published data
Compare the named series against your requirement. These are catalogue references; stock and lead times are confirmed on enquiry. Similar headline ratings do not establish an interchangeable replacement.
Schneider Electric
TeSys Deca
3P & 4P by model
Deca covers AC-3 9–150 A and AC-1 20–200 A; larger TeSys series have separate ratings.
Manufacturer data & documents ↗LOVATO
BG / BF / B contactors
3P & 4P by series
Catalogue families extend to 630 A AC-3 and 1600 A AC-1; verify the pole-specific model.
Manufacturer data & documents ↗CHINT
NXC contactors
3P; selected 4P variants
NXC covers 6–630 A. Four-pole versions are limited to the manufacturer-listed smaller variants; do not apply 630 A to all 4P options.
Manufacturer data & documents ↗Manufacturer references reviewed 2026-09-25. Images identify the manufacturer stated in their captions.
Information for your component enquiry
Send the following information so the family can be narrowed to a suitable series. For an existing installation, include the full device reference and clear photographs of the nameplate and connections.
- Load type and operating current
- operating voltage and coil supply
- required main poles and auxiliary contacts
Key selection checks: Load type and duty; coil supply; auxiliary contacts.
Discuss contactors ↗Common questions
Does the listed range mean every option is in stock?
No. The range describes selected catalogue families. NPE confirms the exact series, configuration, stock and lead time against your enquiry.
Can I substitute a four-pole device directly?
Not from pole count alone. Confirm the circuit duty, neutral arrangement, dimensions, terminals, control supply and relevant protective characteristics. Four-pole availability is series-specific.
Related component families
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Manufacturer images identify the stated family or model. Other equipment illustrations are labelled separately. Confirm specifications and availability before ordering.