The ABB OTPS40FPN1 is a genuine left-hand fourth pole (neutral) accessory designed for compatible ABB OT16F, OT25F and OT40F switch disconnectors. It adds an additional simultaneously operated fourth pole to a three-pole switch, making it ideal for applications requiring neutral switching in commercial and industrial power distribution systems.
Designed as an original ABB accessory, the OTPS40FPN1 mounts directly to the left-hand side of the switch and operates simultaneously with the main poles, ensuring reliable switching performance without increasing installation complexity. Its compact design maintains the small footprint of ABB's OT switch disconnector range while providing dependable electrical isolation.
Suitable for industrial control panels, OEM machinery, switchboards and commercial electrical installations, the ABB OTPS40FPN1 delivers the quality, compatibility and long-term reliability expected from genuine ABB low-voltage switchgear accessories.
Key Advantages
Genuine ABB fourth pole accessory.
Adds a simultaneously operated neutral/fourth pole.
Left-hand mounting (N1 configuration).
Designed specifically for ABB OT16F, OT25F and OT40F switch disconnectors.
Compact snap-on installation.
Reliable long-term mechanical and electrical performance.
Key Features
Fourth pole / neutral accessory.
Left-side installation.
Simultaneous operation with the main contacts.
Suitable for DIN rail and base-mounted switches.
Rated up to 40 A.
Original ABB accessory for guaranteed compatibility.
Compact lightweight construction.
Designed for industrial and commercial switchgear.
Explanatory Section
Many three-pole switch disconnectors require an additional neutral or fourth pole to meet installation requirements. The ABB OTPS40FPN1 provides this functionality by adding a fourth pole that operates simultaneously with the three main switching poles, ensuring dependable switching and isolation without modifying the main switch mechanism.
Its left-hand (N1) mounting configuration enables straightforward installation on compatible ABB OT16F, OT25F and OT40F switch disconnectors. As an original ABB accessory, it delivers precise fitment, reliable operation and long service life in demanding industrial environments.
Typical Applications
Industrial switchboards.
Commercial electrical distribution.
OEM machinery.
Motor control centres.
Control panel manufacturing.
Building services electrical installations.
Technical Specifications
Manufacturer
ABB
Model
OTPS40FPN1
Product ID
1SCA105001R1001
EAN
6417019391328
Product type
Fourth pole / Neutral accessory
Accessory subtype
Fourth Pole
Mounting position
Left-hand side (N1)
Function
Simultaneous operation with main poles
Current rating
Up to 40 A
Suitable for
ABB OT16F_C, OT25F_C and OT40F_C switch disconnectors
Installation
DIN rail and base-mounted switches
Dimensions
Approx. 50 × 13 × 40 mm
Net weight
Approx. 0.03 kg
Country of origin
Finland
HS Code
85389099
Country of Manufacture
Finland
FAQs
What is the ABB OTPS40FPN1?
The ABB OTPS40FPN1 is a left-hand fourth pole (neutral) accessory for compatible ABB OT16F, OT25F and OT40F switch disconnectors.
Which ABB switches is the OTPS40FPN1 compatible with?
It is designed for ABB OT16F_C, OT25F_C and OT40F_C switch disconnectors.
Does the fourth pole operate independently?
No. The fourth pole operates simultaneously with the main poles to provide coordinated switching.
What does N1 mean?
N1 indicates that the accessory mounts on the left-hand side of the compatible switch disconnector.
Is the OTPS40FPN1 a genuine ABB accessory?
Yes. It is an original ABB accessory with product ID 1SCA105001R1001 and EAN 6417019391328.
Trusted by...
ABB switch disconnector accessories are trusted worldwide by panel builders, electrical contractors and OEM manufacturers for their dependable compatibility, precision engineering and long-term reliability in low-voltage power distribution systems.
Manufacturer
ABB
Model
OTPS40FPN1
Product ID
1SCA105001R1001
EAN
6417019391328
Product type
Fourth pole / Neutral accessory
Accessory subtype
Fourth Pole
Mounting position
Left-hand side (N1)
Function
Simultaneous operation with main poles
Current rating
Up to 40 A
Suitable for
ABB OT16F_C, OT25F_C and OT40F_C switch disconnectors
Installation
DIN rail and base-mounted switches
Dimensions
Approx. 50 × 13 × 40 mm
Net weight
Approx. 0.03 kg
Country of origin
Finland
HS Code
85389099
Country of Manufacture
Finland
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
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If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...