Why Choose the ABB OTDC25F3 DC Switch Disconnector?
The ABB OTDC25F3 (Part Number 1SCA121458R1001) is a compact and dependable DC switch disconnector engineered for the safe isolation of direct current circuits in photovoltaic systems, battery energy storage installations and industrial DC applications. As part of the trusted ABB OTDC switch disconnector series, it provides reliable manual switching while helping improve safety during maintenance and servicing.
Designed for panel builders, machine manufacturers and renewable energy installers, the OTDC25F3 features a robust three-pole design suitable for base or DIN rail mounting. The switch includes a terminal bolt kit, while the operating handle and shaft are supplied separately, allowing flexible installation to suit individual enclosure requirements.
With a 25 A rated operational current, 1000 V DC operating voltage and a 3-pole single-circuit configuration, the OTDC25F3 is ideally suited for photovoltaic combiner boxes, industrial DC control panels and battery energy storage systems.
Key Advantages
Compact DC switch disconnector for renewable energy and industrial applications.
25 A operational current at up to 1000 V DC.
3-pole single-circuit configuration.
Suitable for base or DIN rail mounting.
Reliable ABB construction for long service life.
Designed for safe isolation of photovoltaic and industrial DC circuits.
Key Features
ABB OTDC Series.
Model OTDC25F3.
25 A rated operational current.
1000 V DC operating voltage.
3-pole switching configuration.
Base or DIN rail mounting.
IP20 protected terminal clamps.
Terminal bolt kit included.
Operating handle and shaft ordered separately.
Reliable DC Isolation for Renewable Energy Systems
The ABB OTDC25F3 is designed to safely isolate direct current circuits used in photovoltaic arrays, battery storage systems and industrial DC installations. Its compact dimensions make it easy to integrate into modern electrical enclosures while providing dependable switching performance throughout its service life.
With ABB's proven engineering and robust mechanical construction, the OTDC25F3 helps improve installation safety and supports reliable maintenance procedures in demanding renewable energy and industrial applications.
Typical Applications
Photovoltaic (PV) systems.
Solar combiner boxes.
Battery energy storage systems.
Industrial DC distribution.
Electrical control panels.
Machine building and automation.
Technical Specifications
Current
32 A
Voltage
000 V
Phase
Three Phase
IP Rating
IP20
Manufacturer
ABB
Series
OTDC Switch Disconnectors
Model
OTDC25F3
Manufacturer Part Number
1SCA121458R1001
Product type
DC switch disconnector
Rated operational current
25 A
Rated operational voltage
1000 V DC
Rated insulation voltage (Ui)
1000 V
Rated impulse withstand voltage (Uimp)
8 kV
Conventional thermal current (Ith)
32 A
Number of poles
3
Number of circuits
Single circuit
Mounting type
Base or DIN rail mounting
Connection type
Screw terminals
Protection rating
IP20
Weight
Approx. 0.20 kg
HS Code
85365080
Country of Manufacture
Estonia
Frequently Asked Questions
What is the ABB OTDC25F3 used for?
The OTDC25F3 safely isolates direct current circuits used in photovoltaic systems, battery storage installations and industrial DC applications.
What current and voltage ratings does the switch support?
The switch is rated at 25 A for applications operating at up to 1000 V DC.
How many poles does the OTDC25F3 have?
The switch features a 3-pole single-circuit configuration.
How is the switch mounted?
The OTDC25F3 supports both base mounting and DIN rail mounting.
Is the operating handle included?
No. The terminal bolt kit is supplied, while the operating handle and shaft must be ordered separately.
Trusted by Renewable Energy Professionals Worldwide
ABB OTDC switch disconnectors are trusted by panel builders, renewable energy installers and industrial engineers for providing reliable DC isolation, compact installation and dependable long-term performance.
Current
32 A
Voltage
000 V
Phase
Three Phase
IP Rating
IP20
Manufacturer
ABB
Series
OTDC Switch Disconnectors
Model
OTDC25F3
Manufacturer Part Number
1SCA121458R1001
Product type
DC switch disconnector
Rated operational current
25 A
Rated operational voltage
1000 V DC
Rated insulation voltage (Ui)
1000 V
Rated impulse withstand voltage (Uimp)
8 kV
Conventional thermal current (Ith)
32 A
Number of poles
3
Number of circuits
Single circuit
Mounting type
Base or DIN rail mounting
Connection type
Screw terminals
Protection rating
IP20
Weight
Approx. 0.20 kg
HS Code
85365080
Country of Manufacture
Estonia
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
Returns
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.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
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Customers supported
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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...