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1SCA162512R1001 ABB OT100G3-4BSN1 Switch-disconnector OT Plus 100 A, size G3, 4-pole, 4th pole left
ABB OT100G3-4BSN1 100 A 4-pole switch disconnector with left-hand neutral (N1), base or DIN rail mounting and padlockable direct-mounted operating handle.
£65.59
Why Choose the ABB 1SCA162512R1001 OT100G3-4BSN1 Switch Disconnector?
The ABB 1SCA162512R1001, also known as the OT100G3-4BSN1, is a high-performance 100 A, 4-pole switch disconnector from the ABB OT Plus range. Designed for dependable isolation of low-voltage electrical circuits, it is ideal for industrial control panels, commercial distribution boards, machinery and OEM equipment. The four-pole configuration includes a left-hand neutral (N1), making it particularly suitable for three-phase systems requiring neutral isolation.
The OT100G3-4BSN1 supports both base mounting and 35 mm DIN rail mounting, providing installation flexibility for new builds and retrofit projects. It is supplied with a directly mounted black operating handle that can be padlocked in the OFF position to support lockout and maintenance procedures.
Designed in accordance with IEC 60947-3, the switch features protected IP20 screw terminals and is compatible with optional ABB operating shafts and external door-mounted handles where remote operation from an enclosure door is required.
Key Advantages
- Reliable isolation for circuits rated up to 100 A.
- 4-pole design with left-hand neutral (N1).
- Compact G3 frame maximises available panel space.
- Suitable for base mounting or 35 mm DIN rail mounting.
- Padlockable handle supports safe maintenance procedures.
- Compatible with ABB external operating accessories.
- Protected IP20 screw terminals for enhanced safety.
- Ideal for industrial, commercial and OEM applications.
Key Features
- ABB OT Plus switch disconnector.
- 100 A rated operational current.
- 4 poles (3P + N1).
- Front-operated switching mechanism.
- Base mounted or DIN rail mounted.
- Integrated screw terminals.
- Direct-mounted black operating handle supplied.
- Padlockable in the OFF position.
- Compatible with ABB door-mounted operating accessories.
- IP20 protected front terminals.
- Suitable for low-voltage power distribution applications.
Reliable Isolation for Three-Phase Systems
The ABB OT100G3-4BSN1 is designed to safely isolate three-phase electrical systems where neutral disconnection is required. Its four-pole configuration makes it suitable for commercial buildings, industrial machinery, generator installations and power distribution systems that require complete circuit isolation.
The compact G3 frame enables efficient use of enclosure space while maintaining high switching performance. Its dual mounting options and compatibility with ABB external operating accessories make it suitable for both OEM equipment manufacture and retrofit switchboard projects.
Typical Applications
- Industrial control panels.
- Commercial distribution boards.
- Generator changeover systems.
- Three-phase power distribution.
- Motor control centres.
- HVAC equipment.
- OEM machinery.
- Automation systems.
- Electrical switchboards.
- Maintenance isolation points.
Technical Specifications
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| Voltage | 690 V | |
|---|---|---|
| Device Type | Switch Disconnector | |
| Poles | 4-pole | |
| Mounting Type | DIN rail | |
| Product Series | ABB OT Plus | |
| Current | 100 A | |
| Phase | Three Phase | |
| Manufacturer | ABB | |
| Series | OT Plus | |
| Product ID | 1SCA162512R1001 | |
| Alternative SKU | OT100G3-4BSN1 | |
| Product type | Switch disconnector / isolator | |
| Frame size | G3 | |
| Number of poles | 4 (3P + N1) | |
| Neutral position | Left-hand (N1) | |
| Rated thermal current (Ith) | 100 A | |
| Rated operational current (AC-22A / AC-23A at 690 V) | 100 A / 63 A | |
| Rated insulation voltage (Ui) | 800 V | |
| Maximum operational voltage | 690 V AC | |
| Mounting | Base mounting or 35 mm DIN rail | |
| Terminal type | Screw terminals | |
| Copper conductor capacity | 2.5–70 mm² | |
| Operating handle | Direct-mounted black knob | |
| Padlocking | OFF position | |
| Degree of protection | IP20 from the front | |
| Standards | IEC 60947-3, UL 98 and UL 60947-4-1 | |
| Country of origin | Finland | |
| HS Code | 85365080 | |
| Country of Manufacture | Finland |
Frequently Asked Questions
What is the ABB 1SCA162512R1001 used for?
It is a 100 A, 4-pole switch disconnector designed for safely isolating three-phase electrical systems where neutral isolation is required.
What is the alternative part number?
The ABB catalogue designation is OT100G3-4BSN1.
What does N1 mean?
N1 indicates that the neutral pole is positioned on the left-hand side of the switch when viewed from the front.
Can the OT100G3-4BSN1 be DIN rail mounted?
Yes. It is suitable for both direct base mounting and installation on a standard 35 mm DIN rail.
Is the operating handle padlockable?
Yes. The supplied handle can be padlocked in the OFF position to support safe lockout and maintenance procedures.
Can the switch be converted for enclosure door operation?
Yes. Compatible ABB operating shafts and external door-mounted handles are available separately.
Trusted by Electrical Professionals Worldwide
ABB OT Plus switch disconnectors are trusted by electrical contractors, panel builders, OEM machine manufacturers and industrial engineers for reliable circuit isolation, flexible installation and dependable long-term performance.
