Abb Disconnector OT80G2-3BS 80A 3 poles OT80G2-3BS
The ABB OT80G2-3BS 80A 3-pole disconnector (OT Plus, frame G2) is ideal for LV panels: front operation, base or DIN rail mounting, and lockable knob handle for safe and practical disconnection.
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3-pole 80A (Frame G2) for reliable disconnection in LV distribution
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Bottom plate / DIN rail mounting, suitable for panels with 45 mm DIN hole
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Front operation with lockable knob handle (black)
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Integrated screw terminals, wiring up to 35 mm² (1x Cu)
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High performance: Ui 800 V, Uimp 8 kV, Inc 50 kA (with 80A fuse, 690 V)
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Mechanical lifespan up to 100,000 operations.
Frequently bought together
ABB Disconnector OT80G2-3BS: Safe Isolation for Panels and Three-phase Lines
The ABB OT80G2-3BS is a three-pole switch-disconnector from the OT Plus series, designed to offer simple operation and safe disconnection on three-phase lines. It is the ideal solution when you need to ensure electrical isolation of a circuit during maintenance, machine interventions, or safety procedures in a panel. The front operation makes the maneuver immediate and clearly visible, while the IP20 front protection contributes to safer management in the panel compartment.
Thanks to the 80 A size, it is perfect for distribution lines, sub-panels, disconnection of utilities, and machine power supplies where a robust and reliable command is necessary.
Quick Installation: DIN Rail or Back Plate and DIN 45 mm Hole
This model is designed for panel building: you can install it on a back plate or directly on a DIN rail, maintaining a neat and compact layout. It is suitable for panels with a 45 mm DIN hole, useful for configurations with door control or dedicated passages. The integrated screw terminals speed up the connection and make the installation more stable over time, reducing loosening due to vibrations or thermal cycles.
Practical Note: external handle and shaft are not included; they are available as accessories if external or panel door control is needed.
Flexible Wiring: Wide Compatibility with Cable Sections
The disconnector supports various types of conductors and sections, making it versatile in retrofit and new installations. For the main circuit, the following are allowed, for example:
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1× Flexible Cu or stranded 1,535 mm²
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2× Flexible Cu or stranded 1,516 mm²
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Solid and flexible conductors with ferrule in the indicated sections (up to 6 mm² for solid 1/2x)
This flexibility facilitates integration both in compact panels and in distribution panels with larger cable sections.
Electrical Performance: Up to 800 V and High Short-circuit Resistance
With Ui 800 V and Uimp 8 kV, the OT80G2-3BS is suitable for low voltage installations with good insulation margins. The conditional short-circuit current Inc 50 kA (with 80 A fuse, 690 V) makes it suitable for installations where the fault prospect can be high. In AC-23A utilization category, it handles up to 80 A at 415 V and 40 A at 690 V, with powers up to 45 kW (415 V) and 37 kW (690 V), also ideal for disconnection in the operation of more demanding loads.
| GENERAL TECHNICAL DATA | |
|---|---|
| Number of Poles | 3P |
| Mounting Type | Base / DIN Rail Mounting |
| Operating Mode | Front |
| Protection Degree (Front) | IP20 |
| Pollution Degree | 3 |
| CABLE SECTIONS – MAIN CIRCUIT | |
| Flexible Conductors with Ferrule | 1/2x Cu 1.5…4 mm² |
| Solid Conductors | 1/2x Cu 1.5…6 mm² |
| Flexible Conductors | 1x Cu 1.5…35 mm² 2x Cu 1.5…16 mm² |
| Stranded Conductors | 1x Cu 1.5…35 mm² 2x Cu 1.5…16 mm² |
| ELECTRICAL CHARACTERISTICS | |
| Conventional Thermal Current in Free Air (Ith) | 80 A |
| Conventional Thermal Current (Ithe) | 80 A |
| Rated Insulation Voltage (Ui) | 800 V (IEC 60947-1) |
| Rated Operating Voltage | Main Circuit: 800 V |
| Impulse Withstand Voltage (Uimp) | 8 kV |
| RATED OPERATING CURRENTS | |
| AC-21A (Ie) | 80 A @ 415 V 80 A @ 690 V |
| AC-22A (Ie) | 80 A @ 415 V 80 A @ 690 V |
| AC-23A (Ie) | 80 A @ 415 V 40 A @ 690 V |
| Rated Power AC-23A (Pe) | 45 kW @ 415 V 37 kW @ 690 V |
| SHORT-CIRCUIT AND RESISTANCE | |
| Conditional Short-circuit Current (Inc) | 50 kA (fuse 80 A, 690 V) |
| Short-circuit Making Capacity (Icm) | 3.5 kA @ 690 V |
| Short-time Withstand Current (Icw) | 1.5 kA for 1 s 2.5 kA for 0.2 s |
| LOSSES AND DISSIPATION | |
| Power Loss per Pole | 3.4 W (nominal operating conditions) |
| CONTROL AND HANDLE | |
| Type of handle | Knob handle |
| Handle colour | Black |
| Handle length | 37 mm |
| Type of lock | Padlock |
| External handle and shaft | Not included |
| AUXILIARY CONTACTS | |
| Maximum number of mountable contacts | 4 NO + 4 NC |
| DURATION AND RELIABILITY | |
| Mechanical lifespan | 100,000 operations |
| CONNECTIONS | |
| Type of terminal | Screw terminals |
| Recommended screwdriver | Pozidriv 2 |
| Tightening torque | 2 N·m (IEC 60947-1) |
| Cable stripping length | 13–16 mm (0.51–0.63 in) |
| UL / CSA DATA | |
| Maximum operating voltage | 600 V |
| UL / CSA amperage | 80 A |
| UL / CSA classification | Single-phase: • 110–120 V: 2 Hp • 240 V: 10 Hp • 440–480 V: 20 Hp • 550–600 V: 20 Hp Three-phase: • 110–120 V: 5 Hp • 240 V: 20 Hp • 440–480 V: 40 Hp • 550–600 V: 40 Hp |
| UL / CSA wire size | 1x 16–2 AWG 2x 16–8 AWG |
| UL / CSA tightening torque | 18 lbf·in |
| REFERENCE STANDARDS | |
| Standards | IEC 60947-3 UL 60947-4-1 CSA C22.2 no.14 |
| DIMENSIONS AND WEIGHT | |
| Width | 52.5 mm |
| Height | 91.5 mm |
| Depth | 73 mm |
| Net weight | 0.251 kg |
Data sheet
- Voltage: 800VAC
- Poles: 3P
- Degree of protection: IP20
- Amps: 80A
- Circuit Protections: Disconnectors
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