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ABB OT200U03 3-Pole Disconnect Switch 200 AMP

Rating:
5 5 2
2  Reviews Add Your Review
Special Price $655.36 Regular Price $727.45
In stock
SKU
OT200U03

The ABB OT200U03 is a manually controlled safety switch, especially a 3-pole disconnect switch rated at 200 amps. Electrical circuits are physically isolated from their power source in order for it to work. This eliminates the possibility of live current when working on electrical equipment, which is essential for safety and maintenance.  Disconnect switches such as the ABB OT200U03 are commonly used in a variety of HVAC equipment, including air handling units, chillers, and fan coil units. Their major role is to increase the safety of persons performing maintenance or repairs on these systems by isolating them completely from the power supply. Disconnect switches reduce the possibility of accidentally coming into contact with live wires by providing visual and positive proof of unplugged power.

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HVAC Controls & Electrical, Switches,
Manufacturer:
https://www.partshnc.com/media/catalog/product/o/t/ot200u03_abb_partshnc.jpg
Manufacturer Name: ABB
Product Number: OT200U03
OEM Part Number: OT200U03
Product Description: Disconnect Switch,200Amp,3P
Weight:3.58lbs/1623.86g

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Product Questions (2)
Customer Questions
What maintenance is required for the ABB OT200U03 Disconnect Switch?

Inspect contacts regularly for wear and overheating, and keep terminals tight and free of corrosion. Clean dust buildup to conductivity. Proper ensures accurate isolation, reduces electrical resistance issues, and enhances overall operational safety.

What are common issues with the ABB OT200U03 Disconnect Switch?

  • Contact pitting or arcing under heavy load.
  • Loose terminals causing intermittent connection.
  • Overheating due to improper load rating.
  • Mechanical wear in switching mechanism.
  • Insulation degradation over time.
  • Contact oxidation in humid conduction.

Installation Steps

Step 1: Turn off upstream power and check zero voltage at all terminals before beginning work.

Step 2: Mount the disconnect switch securely on a panel or enclosure using rated hardware.

Step 3: Connect incoming and outgoing conductors to line and load terminals, tightening to torque specs.

Step 4: Ensure proper grounding and clear isolation gap for safety compliance.

Step 5: Operate handle through OFF/ON positions to confirm smooth mechanical action.

Step 6: Restore power and test under load, checking for overheating or loose connections.