Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
OTP125B4U ABB Enclosed Switch Disconnector 125A 4P 45kW
ABB OTP125B4U plastic enclosed switch disconnector, a four-pole 125 A isolating switch designed for industrial electrical isolation and 45 kW AC23 switching applications.
£307.07
Why Choose the ABB OTP125B4U Switch Disconnector?
The ABB OTP125B4U is a robust plastic enclosed switch disconnector designed for reliable electrical isolation and load switching in industrial environments. As part of the ABB OTP enclosed switch disconnector series, it provides safe disconnection, durable protection and dependable operation for industrial machinery, electrical distribution systems and automation installations. :chatgpt-content-reference{index="0"}
This enclosed switch disconnector features a rigid glass-reinforced polycarbonate enclosure with IP65 protection, providing protection against dust and low-pressure water jets for indoor and outdoor applications. The enclosure includes an interlocked cover, defeatable interlocking and a padlockable selector handle to support safe maintenance isolation procedures. :chatgpt-content-reference{index="1"}
With a 45 kW AC23 switching rating, four-pole configuration and 125 A thermal current rating, the ABB OTP125B4U is suitable for industrial installations requiring secure isolation, reliable switching and five-wire system compatibility. :chatgpt-content-reference{index="2"}
Key Advantages
- 125 A enclosed switch disconnector for industrial isolation and load switching applications.
- Four-pole 415 V AC23 operation for systems requiring neutral switching.
- 45 kW AC23 rated operational power for industrial motor and machinery applications.
- IP65 glass-reinforced polycarbonate enclosure for indoor and outdoor installations.
- Interlocked cover with defeatable interlocking for safer maintenance access.
- Padlockable selector handle for secure isolation procedures.
- Fixed and switchable neutral with PE terminal for five-wire systems.
Key Features
- ABB OTP enclosed switch disconnector series.
- 125 A conventional thermal current rating.
- 90 A AC23 rated operational current at 380–415 V AC.
- 45 kW AC23 rated operational power.
- Four-pole switch configuration.
- 750 V rated insulation voltage.
- IP65 plastic enclosure manufactured from rigid glass-reinforced polycarbonate.
- IK08 impact-resistant housing.
- Selector handle with padlock provision for three padlocks.
- Fixed and switchable neutral terminal arrangement.
- Top and bottom cable entry positions.
- Blank cable outlets per side for installer-configured entries.
Reliable Isolation for Industrial Equipment
Switch disconnectors such as the ABB OTP125B4U provide a secure method of isolating electrical equipment during maintenance, inspection and servicing operations. The enclosed design protects internal switching components while providing operators with a dedicated isolation point.
The ABB OTP series combines mechanical durability, environmental protection and dependable switching performance for industrial applications. Its robust enclosure design, neutral switching capability and secure handle mechanism make it suitable for machine builders, electrical engineers and industrial facilities. :chatgpt-content-reference{index="3"}
Typical Applications
- Industrial machinery isolation systems.
- Motor control and electrical distribution equipment.
- Manufacturing and production facilities.
- Pumps, fans and HVAC systems.
- Machine building and automation installations.
- Indoor and outdoor industrial electrical systems.
Technical Specifications
Tick the specs you need, then view products that match.
| Material | Polycarbonate | |
|---|---|---|
| Voltage | 750 V AC | |
| Device Type | Enclosed switch disconnector | |
| Series | OTP Enclosed Switch Disconnectors | |
| Product type | Plastic enclosed switch disconnector | |
| Number of poles | 4 | |
| Rated operational voltage | 750 V AC | |
| AC21A rated operational current | 125 A | |
| AC23 rated operational current | 90 A at 415 V AC | |
| Rated operational power | 45 kW | |
| Conventional thermal current | 125 A fully enclosed | |
| Rated insulation voltage | 750 V | |
| Protection rating | IP65 | |
| Impact resistance | IK08 | |
| Enclosure material | Glass-reinforced polycarbonate | |
| Handle type | Selector handle | |
| Handle colour | Grey | |
| Neutral type | Fixed and switchable neutral | |
| Main circuit connection | Screw clamp 10–70 mm² | |
| PE terminal | Screw clamp 4 pcs, 10–70 mm² | |
| Cable entry position | Top and bottom | |
| Cable outlets per side | Blank / Blank | |
| Maximum mounted auxiliary contacts | 2NO + 2NC | |
| Standards | IEC 60947-1, IEC 60947-3 | |
| Dimensions (H × W × D) | 400 × 200 × 140 mm | |
| Weight | approx. 2.4 kg |
Frequently Asked Questions
What is the ABB OTP125B4U used for?
The ABB OTP125B4U is an enclosed switch disconnector used for safe electrical isolation and load switching in industrial applications.
What is the current rating of the OTP125B4U?
The switch has a 125 A conventional thermal current rating and supports 90 A AC23 operation at 415 V AC.
What motor power can the ABB OTP125B4U switch?
The OTP125B4U supports an AC23 rated operational power of 45 kW.
What protection rating does the enclosure provide?
The ABB OTP125B4U features an IP65 enclosure rating with IK08 impact resistance for demanding environments.
Does the OTP125B4U support neutral switching?
Yes, the OTP125B4U includes fixed and switchable neutral capability for five-wire electrical systems.
Trusted by Industrial Engineers Worldwide
ABB OTP enclosed switch disconnectors are trusted by industrial engineers and machine builders for dependable isolation, robust protection and safe operation in modern electrical installations.
