Abb Disconnector OT63G2-4BSN2 63A 4 poles OT63G2-4BSN2
ABB OT63G2-4BSN2
6417019925943
ABB Disconnector OT63G2-4BSN2 63A 4 poles of the OT Plus series ensures safe disconnection in LV panels: front operation, DIN/base mounting, lockable handle, and high performance up to 800 V.
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4 poles 63A (ABB OT Plus series) with front operation
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Base / DIN rail mounting, suitable for panels with 45 mm DIN hole
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Lockable knob handle (black colour) and integrated screw terminals
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4th switched pole (late-break / early-make) in right position
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LV performance: Ui 800 V, Uimp 8 kV, Inc 50 kA (with 80A fuse, 690 V).
€26.35
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ABB Disconnector OT63G2-4BSN2: isolation and safe operation in panel
The ABB OT63G2-4BSN2 disconnector is a switch-disconnector designed to offer reliable operation and visible and safe disconnection in low voltage distribution panels. It is part of the OT Plus range, appreciated for its robust construction and ease of integration into distribution boards and industrial panels. The 4-pole configuration makes it ideal for three-phase applications with neutral, where it is essential to completely isolate the circuit during maintenance, interventions, or safety procedures.
Thanks to the front operation, the operator manages the command directly from the front panel with a clear and immediate maneuver. The IP20 front protection contributes to safer management in technical environments and panel compartments.
DIN/base mounting and orderly installation: designed for panel building
This model is designed for quick installation: it can be mounted on a DIN rail or base, adapting to the most common layouts in panel building. It is suitable for panels with a 45 mm DIN hole, useful in configurations with door command or dedicated passage. The integrated screw terminals simplify wiring and allow stable tightening, reducing installation times and improving connection reliability over time.
An important detail for design: the external handle and the shaft for door command can be requested as accessories (not included), while the knob operation is designed for direct mounting on the device.
4th switched pole: neutral management with simultaneous function
The disconnector includes the fourth pole on the right side, with switched function and late-break / early-make logic: a useful feature when controlled management of the opening/closing of the fourth pole is needed compared to the other contacts. It is an advantage in many applications where the neutral or an auxiliary circuit must follow a defined sequence, improving operational safety and maneuver consistency.
High electrical performance: up to 800 V and high fault withstand
With 63 A of conventional thermal current (Ith/Ithe) and important insulation parameters (Ui 800 V, Uimp 8 kV), the OT63G2-4BSN2 is suitable for LV panels where safety and reliability margins are needed. The conditional short-circuit capacity Inc 50 kA (with 80 A fuse, 690 V) makes it suitable for installations with significant fault levels, while the mechanical endurance up to 100,000 operations supports frequent use in industrial contexts.
| GENERAL TECHNICAL DATA | |
|---|---|
| Number of poles | 4P |
| 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) | 63 A |
| Conventional thermal current (Ithe) | 63 A |
| Rated insulation voltage (Ui) | 800 V (IEC 60947-1) |
| Rated operational voltage | Main circuit: 800 V |
| Impulse withstand voltage (Uimp) | 8 kV |
| RATED OPERATIONAL CURRENTS | |
| AC-21A (Ie) | 63 A @ 415 V 63 A @ 690 V |
| AC-22A (Ie) | 63 A @ 415 V 63 A @ 690 V |
| AC-23A (Ie) | 63 A @ 415 V 32 A @ 690 V |
| Rated power AC-23A (Pe) | 30 kW @ 415 V 30 kW @ 690 V |
| SHORT CIRCUIT AND WITHSTAND | |
| 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 | 2.2 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 |
| FOURTH POLE | |
| Fourth pole position | Right side |
| Fourth pole type | Switched – simultaneous function Late-break / Early-make |
| AUXILIARY CONTACTS | |
| Maximum number of contacts mountable | 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) |
| REFERENCE STANDARDS | |
| Standards | IEC 60947-3 UL 60947-4-1 CSA C22.2 no.14 |
| DIMENSIONS AND WEIGHT | |
| Width | 70 mm |
| Height | 91.5 mm |
| Depth | 73 mm |
| Net weight | 0.321 kg |
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Data sheet
- Voltage: 800VAC
- Poles: 4P
- Degree of protection: IP20
- Amps: 63A
- Circuit Protections: Disconnectors