ABB
OT switch-disconnectors
3P & 4P variants
Handle, shaft, mounting and load-duty options depend on the selected switch.
Manufacturer data & documents ↗COMPONENT FAMILIES / Isolation & protection
Switch disconnectors
Plan an appropriate isolation point for equipment and maintenance.
- Range / configuration
- Equipment & distribution isolation
- Pole options
- 3P & 4P options
- Catalogue brands
- ABB · Schneider Electric · LOVATO · CHINT
APPLICATION GUIDE
Equipment isolation
Choose isolation equipment around the circuit duty and the required operating arrangement. Pole count, utilisation category and enclosure interfaces are separate checks. Neutral switching requirements must be established from the installation design.
Typical applications: Machine incomers, maintenance isolation and distribution switching.
SELECTION AT A GLANCE
Range / configuration
Equipment & distribution isolation
3P & 4P options
- 3-pole and 4-pole options
- direct or door-coupled operation
- locking arrangements
Options vary by series and application. Confirm the exact configuration and availability.
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 Vario
Additional pole on compatible models
Check the exact switch body and supported additional-pole accessory.
Manufacturer data & documents ↗LOVATO
GA / GL switch-disconnectors
3P with compatible fourth-pole options
The additional pole must match the selected series and assembly.
Manufacturer data & documents ↗CHINT
NH40 switch-disconnectors
3P & 4P
Range and operation details vary by frame and intended switching duty.
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.
- Supply and load duty
- pole arrangement
- enclosure, handle and locking requirements
Key selection checks: AC or DC duty; pole arrangement; locking requirements.
Discuss switch disconnectors ↗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.