1SCA158194R1001 ABB OTDC400F02 2 Pole 1000VDC 400A Switch Disconnector

Why Choose the ABB OTDC400F02 DC Switch Disconnector

The ABB OTDC400F02 is a two pole DC switch disconnector rated at 400 A for up to 1000 V DC. It delivers dependable on load switching and safe isolation in photovoltaic combiner boxes, inverter inputs and DC distribution where compact size and low losses are critical.

Optimised for 1000 V DC applications, the OTDC M series combines high thermal capacity with a compact footprint, helping reduce enclosure size while maintaining performance. The mechanism is base mounted and front operated via a separate door handle and 12 mm shaft, allowing easy alignment to enclosure depth and layout.

Key Features

• Two pole DC switch disconnector, 400 A up to 1000 V DC.
• Compact M frame to save space in PV string and combiner enclosures.
• Front operated base unit; handle and shaft ordered separately.
• Clear ON or OFF indication with front IP20 protection at the mechanism.
• Suited to PV string, combiner and inverter DC isolation at 1000 V DC.

Technical Specifications

• Manufacturer: ABB
• Series: OTDC DC switch disconnectors
• Model: OTDC400F02
• Product ID: 1SCA158194R1001
• EAN: 6417019872995
• Poles: 2
• Rated operational voltage Ue: 1000 V DC
• Rated operational current Ie: 400 A DC
• Utilisation categories: DC 21B, DC 22B, DC PV1, DC PV2
• Rated insulation voltage Ui: 1500 V
• Impulse withstand Uimp: 12 kV
• Short circuit making Icm: 10 kA at 1000 V DC
• Short time withstand Icw: 10 kA for 1 s
• Degree of protection: Front IP20
• Mounting: Base mounting
• Operation: Front operated via external door handle and 12 mm shaft
• Terminals: Lug terminals, terminal width 30 mm; tightening torque 30 to 40 N·m
• Line terminals: Top in bottom out or bottom in top out
• Dimensions: W 156.5 mm, H 211 mm, D 135 mm; weight 3.6 kg
• Pollution degree: 3
• Standards: IEC 60947 1 and IEC 60947 3
• Notes: Handle and shaft are not included and must be selected to suit enclosure depth.

Certifications

Conforms to IEC or EN 60947 requirements for switch disconnectors. CE declaration, RoHS compliance and additional approvals are available from ABB.

Comparison and Selection Notes

Choose OTDC400F02 where two pole 1000 V DC isolation at 400 A is required. For 1500 V DC systems see OTDC...FV types, and for higher currents within the 1000 V range consider larger OTDC F models. Enclosed IP rated options are available in the OTDCP series.

Frequently Asked Questions

• What is the OTDC400F02 used for
• Is it suitable for 1000 V DC systems
• Which utilisation categories does it meet
• Do I need to order a handle and shaft
• What is the degree of protection

Applications

• PV string and combiner isolation for 1000 V DC systems.
• Inverter DC input isolation in commercial and utility installations.
• General high current DC distribution and maintenance isolation.

Customer Reviews

Overall rating: 5 Star Product

"Solid 1000 V DC isolator with straightforward installation and robust lugs. Ideal for combiner boxes." - A. Patel, Solar Engineer, 5 Star Product

"Good space savings on panel builds and clear operation with front mechanism." - M. Lewis, Panel Builder, 5 Star Product