ABB Switch-disconnector OT100G3-4BSN2 100A 4 poles, OT Plus series, with front operation, DIN rail mounting and lockable handle. Ideal for industrial and commercial electrical panels.
Rated current: 100 A
Number of poles: 4
Maximum operating voltage UL/CSA: 600 V
Protection degree: IP20
Operation: front
Mounting: on base / DIN rail
Terminals: integrated screw
Knob handle lockable
Series: ABB OT Plus
The ABB OT100G3-4BSN2 disconnector is part of the OT Plus series, designed to ensure maximum safety, reliability, and ease of installation in industrial and tertiary distribution panels.
The disconnection function allows for the safe interruption of the electrical supply for maintenance or emergency operations.
The 4-pole configuration makes the device ideal for three-phase systems with neutral, ensuring complete disconnection of all active lines.
The nominal current of 100 A makes it suitable for medium-high power panels.
The disconnector is:
The compact structure facilitates integration even in panels with limited space.
The direct-mount knob handle is designed for front operation and is lockable, allowing it to be locked in the OFF position during maintenance, increasing the safety level of the system.
It is also prepared for the use of an operating shaft, useful for internal operation in panels.
| DIMENSIONS AND WEIGHT | |
|---|---|
| Product width | 95.5 mm |
| Product height | 123 mm |
| Product depth | 74.6 mm |
| Net product weight | 0.521 kg |
| CONNECTIONS AND CABLE SECTIONS | |
| Cable sections – main circuit | Flexible with ferrule 1/2x Cu 2.5…4 mm² Solid 1/2x Cu 2.5…6 mm² Flexible 1x Cu 2.5…70 mm² Flexible 2x Cu 2.5…25 mm² Stranded 2x Cu 2.5…25 mm² |
| ELECTRICAL CHARACTERISTICS | |
| Conventional free air thermal current (Ith) | 100 A |
| Conventional thermal current (Ithe) | 100 A |
| Rated insulation voltage (Ui) | 800 V (IEC 60947-1) |
| Impulse withstand voltage (Uimp) | 8 kV |
| Rated operational voltage | Main circuit 800 V |
| Power loss | 3.7 W per pole (nominal conditions) |
| RATED OPERATIONAL CURRENTS | |
| AC-21A (Ie) | 100 A (415 V) 100 A (690 V) 80 A (800 V AC) |
| AC-22A (Ie) | 100 A (415 V) 100 A (690 V) 45 A (800 V) |
| AC-23A (Ie) | 100 A (415 V) 63 A (690 V) |
| Rated power AC-23A (Pe) | 55 kW (415 V) 55 kW (690 V) |
| SHORT CIRCUIT | |
| Conditional short-circuit current (Inc) | 50 kA (fuse 125 A, 415 V) 50 kA (fuse 80 A, 690 V) |
| Short-circuit making capacity (Icm) | 4.8 kA (690 V) |
| Admissible short-time withstand current (Icw) | 2.5 kA for 1 s 3.3 kA for 0.2 s |
| CONSTRUCTION CHARACTERISTICS | |
| Number of poles | 4P |
| Fourth pole | Switched – late-break / early-make |
| Fourth pole position | Right side |
| Operating mode | Front |
| Mounting type | Base / DIN rail |
| Line terminal position | From top or bottom |
| Terminal type | Screw terminals |
| HANDLE AND CONTROL | |
| Handle type | Knob handle |
| Handle colour | Black |
| Handle length | 37 mm |
| External handle and shaft | Not included |
| Control | Mechanism on the top |
| PROTECTION AND RELIABILITY | |
| Protection degree | IP20 (front) |
| Pollution degree | 3 |
| Mechanical durability | 100,000 operations |
| Max auxiliary contacts | 4 NO + 4 NC |
| INSTALLATION | |
| Recommended screwdriver | Hexagon 4 |
| Tightening torque | 6 N·m (IEC 60947-1) |
| UL/CSA Tightening Torque | 53 lbf·in |
| Cable Stripping Length | 16–18 mm / 0.63–0.71 in |
| CERTIFICATIONS AND STANDARDS | |
| Reference Standards | IEC 60947-3 UL 98 CSA C22.2 no.4 |
| UL / CSA CLASSIFICATION | |
| Maximum UL/CSA Voltage | 600 V |
| UL/CSA Amperage | 100 A |
| UL/CSA Motor Power | 5 Hp (110–120 V AC, 1~) 15 Hp (240 V AC, 1~) 25 Hp (440–480 V AC, 1~) 30 Hp (550–600 V AC, 1~) 10 Hp (110–120 V AC, 3~) 30 Hp (240 V AC, 3~) 50 Hp (440–480 V AC, 3~) 60 Hp (550–600 V AC, 3~) |
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