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OTPL40FD ABB Late-Break Early-Make Neutral Pole for OT16-40
ABB OTPL40FD is a side-mounted late-break and early-make fourth neutral pole designed for compatible OT16–40FT3 door-mounted switch-disconnectors.
£5.99
Why Choose the ABB OTPL40FD Late-Break / Early-Make Neutral Pole?
The ABB OTPL40FD is a late-break / early-make fourth neutral pole designed for compatible ABB OT16–40 door-mounted switch-disconnectors. Identified by ABB product reference 1SCA105716R1001, it provides timed neutral-pole operation relative to the main switch poles.
The OTPL40FD uses an early-make and late-break function, meaning there is a deliberate time difference between operation of the main poles and the fourth pole. This arrangement allows the neutral pole to make before the main contacts and break after them during switch operation, where this switching sequence is required by the application.
Designed for OT16–40FT3 door-mounted switch-disconnectors, the OTPL40FD mounts on the side of the switch and provides a compact way to add the required fourth-pole neutral functionality. Its purpose-designed ABB construction ensures compatibility with the specified OT switching platform.
Key Advantages
- Purpose-designed late-break / early-make neutral pole for compatible ABB OT switches.
- Suitable for OT16–40FT3 door-mounted switch-disconnectors.
- Early-make neutral operation closes the fourth pole ahead of the main poles.
- Late-break operation keeps the neutral connected until after the main poles open.
- Side-mounted design integrates directly with the compatible switch.
- Compact genuine ABB accessory for industrial switching assemblies.
Key Features
- ABB OTPL40FD fourth pole / neutral accessory.
- Late-break and early-make function.
- Designed for 16–40 A OT applications.
- Suitable for OT16–40FT3 door-mounted switches.
- Mountable on the side of the switch.
- Timed operation relative to the main switch poles.
- Compact 13 mm width.
- ABB product reference 1SCA105716R1001.
Controlled Neutral Switching for ABB OT Switch-Disconnectors
Early-make and late-break neutral poles are used where the neutral conductor needs to be established before the main switched conductors and maintained until after they have disconnected. The timed mechanical relationship between the main poles and fourth pole provides this defined switching sequence.
The ABB OTPL40FD provides this functionality as a dedicated side-mounted accessory for compatible OT16–40FT3 door-mounted switch-disconnectors. It enables a fourth neutral pole to be incorporated without changing the specified main switch platform.
Typical Applications
- ABB OT16–40FT3 door-mounted switch-disconnectors.
- Industrial electrical control panels.
- Low-voltage distribution equipment.
- Machine control cabinets.
- Switchboards requiring switched-neutral operation.
- Installations requiring early-make / late-break neutral switching.
Technical Specifications
| Series | OT Accessories |
|---|---|
| ABB order code | OTPL40FD |
| Product reference | 1SCA105716R1001 |
| Product type | Fourth pole / neutral pole |
| Function | Late-break / early-make |
| Suitable for | OT16–40FT3 |
| Switch type | Door-mounted switch-disconnectors |
| Mounting position | Side of switch |
| Special function | FD |
| Dimensions (H × W × D) | 50 × 13 × 40 mm |
| Net weight | 0.03 kg |
| Quantity | 1 piece |
| ABB product group | 311020-OT/OETL Accessories |
Frequently Asked Questions
What is the ABB OTPL40FD used for?
The ABB OTPL40FD is a fourth neutral pole with late-break and early-make operation for compatible OT16–40FT3 door-mounted switch-disconnectors.
What does late-break / early-make mean on the OTPL40FD?
It means the neutral pole is designed to make before and break after the main switch poles, creating a defined time difference in contact operation.
Which ABB switches are compatible with the OTPL40FD?
The OTPL40FD is designed for compatible ABB OT16–40FT3 door-mounted switch-disconnectors.
Where is the ABB OTPL40FD mounted?
The OTPL40FD is designed to be mounted on the side of the switch.
What is the ABB product reference for OTPL40FD?
The ABB product reference is 1SCA105716R1001.
Trusted ABB Switch-Disconnector Accessories
ABB OT accessories provide purpose-designed components for configuring compatible switch-disconnectors, including specialised neutral-pole arrangements for applications requiring controlled early-make and late-break switching.
