ABB OA8G01 Auxiliary Contact Block | 1NO+1NC | Front Mount | Screw Terminals

With a rated operational voltage of 690 V AC and 250 V DC, the ABB OA8G01 auxiliary contact block delivers reliable signaling and interlocking in demanding industrial control circuits. Its 1NO+1NC contact configuration provides both normally open and normally closed contacts in a single compact unit, enabling flexible integration into control schemes. Front mounting ensures quick and secure installation on compatible ABB contactors without the need for additional tools.

Overview

The OA8G01 is engineered for high electrical endurance, offering 1.5 million operating cycles, and features screw terminals that accept flexible conductors from 0.75 to 2.5 mm² and rigid conductors from 1 to 2.5 mm². Its IP20 protection rating makes it suitable for installation in enclosed control panels, while the operating temperature range of -25 to +70 °C ensures dependable performance in harsh environments.

What stands out

• Dual contact configuration: 1 normally open and 1 normally closed contact for versatile control logic.
• High switching capacity: up to 6 A at 230 V AC (AC-15) and 2.5 A at 24 V DC (DC-13).
• Robust electrical and mechanical durability: 1.5 million and 10 million cycles respectively.
• Compatible with a wide range of ABB contactors including AF, AX, AFS, AFSZ, B, BC, GAE, GAF, and GAFZ series.
• Complies with international standards IEC 60947-5-1, UL 508, and CSA C22.2 No. 14.

Technical details

• Contact configuration: 1 NO + 1 NC
• Rated operational voltage (Ue): 690 V AC / 250 V DC
• Rated insulation voltage (Ui): 690 V
• Rated impulse withstand voltage (Uimp): 6 kV
• Rated operational current (AC-15): 6 A @ 230 V AC, 3 A @ 400 V AC
• Rated operational current (DC-13): 2.5 A @ 24 V DC, 0.27 A @ 250 V DC
• Terminal type: Screw terminals
• Wire size (flexible): 0.75 - 2.5 mm²
• Wire size (rigid): 1 - 2.5 mm²
• Degree of protection: IP20
• Operating temperature range: -25 to +70 °C
• Storage temperature range: -40 to +80 °C
• Electrical durability: 1.5 million operating cycles
• Mechanical durability: 10 million operating cycles
• Standards: IEC 60947-5-1, UL 508, CSA C22.2 No. 14
• Pollution degree: 3

Our verdict

The ABB OA8G01 is a robust and versatile auxiliary contact block that offers exceptional performance and compatibility across a wide range of ABB contactors. Its dual contact configuration and high switching capacity make it an ideal choice for demanding industrial control applications.