OTDC200GV11 ABB 1SCA161938R1001 DC Switch-disconnector

Model: OTDC200GV11
Brand: ABB
Product Type: DC Switch-Disconnector
Series: OTDC S2.0
Order Code / Product ID: 1SCA161938R1001
EAN / GTIN: 6417019920078
Rated Operational Voltage: 1500 V DC
Rated Operational Current: 200 A under DC-21B
Rated Operational Current: 100 A under DC-PV2
Number of Poles: 2
Number of Circuits: 1
Circuit Configuration: 2a, 2b
Operating Arrangement: Front-operated, mechanism between the poles
Frame Size: S2.0
Protection Rating: IP20
Rated Insulation Voltage (Ui): 1500 V
Impulse Withstand Voltage (Uimp): 12 kV
Conventional Free-Air Thermal Current (Ith): 200 A at 40°C
Short-Time Withstand Current (Icw): 10 kA for 1 second
Mechanical Durability: 10,000 cycles
Mounting: Base mounting
Terminal Type: Lug terminals
Dimensions (H × W × D): 165 × 146 × 120 mm
Net Weight: 1.7 kg
Standards: IEC 60947-1 and IEC 60947-3

The ratings above are for the specified OTDC200GV11 variant. For final equipment selection, use the manufacturer's data for the intended application and utilization category.

 

 

Product Identification

The ABB OTDC200GV11 is a two-pole DC switch-disconnector in ABB's OTDC S2.0 series. Its order code is 1SCA161938R1001, and its EAN is 6417019920078. The model is designed for high-voltage DC installations requiring a manually operated means of switching and isolating a circuit.

 

This is the 200 A version of the front-operated OTDC GV11 configuration. ABB's catalogue lists it for systems up to 1500 V DC, with one circuit and two poles. One distinction is especially important when selecting the device: the 200 A rating applies to DC-21B, while the catalogue gives a 100 A rating for DC-PV2. These ratings describe different utilization categories and should not be treated as interchangeable.

The OTDC200GV11 is intended for DC power circuits where a circuit needs to be switched and isolated using a purpose-designed DC disconnecting device. ABB positions the OTDC 100–250 A range for installations operating at up to 1500 V DC, including applications associated with the expansion of high-voltage DC systems and photovoltaic power installations.

Its two-pole arrangement is a key selection detail. The switch uses a front-operated mechanism positioned between the poles, and the catalogue identifies a single circuit with connections designated 2a and 2b. It is therefore not simply a 200 A AC isolator with a different label: the DC voltage, current category, circuit arrangement and applicable switching requirements all matter.

The IP20 rating describes the device's protection level, not the enclosure in which it should be installed. System designers must account for enclosure protection, clearances, conductor sizing and the applicable DC installation requirements separately.

One ordering detail can also catch buyers out: the handle and shaft are not included with the basic switch-disconnector. Confirm the required operating hardware and mounting arrangement when planning a replacement or a new panel assembly.

These related products are useful when comparing current ratings, pole arrangements or package formats. They belong to the same broader OTDC family, but differences in their configuration mean they should not be substituted without checking the application.

ABB's ordering tables distinguish these models by current rating, number of poles, circuit arrangement and operating mechanism. The GV11 designation identifies the front-operated arrangement with the mechanism between the poles; the GV22 and GV02S configurations differ in their electrical arrangement or operating layout.

Other Related Variants

OTDC200GV11/280 - 1SCA162005R1001: Bulk-package ordering reference for the OTDC200GV11 configuration. Check package quantity and ordering terms with the supplier.

 

OTDC200GV11-ESS - 1SCA161987R1001: An ESS variant designed for higher conditional short-circuit values with coordinated fuse selection. ABB's product listing specifies 1500 V DC and 200 A; it also lists a 50 kA conditional short-circuit rating under the specified coordination conditions. This is a distinct variant, not just a different package of the standard GV11.

 

A replacement decision should begin with the complete code on the existing device, not just its current rating. The OTDC family includes switches that share the same voltage class but differ in pole count, circuit arrangement, operating mechanism and utilization-category ratings.

For the OTDC200GV11, check the following against the existing installation:

• Order code and EAN: 1SCA161938R1001 and 6417019920078.
• Application category: Confirm whether the required operating conditions align with DC-21B or DC-PV2.
• Circuit layout: Verify the two-pole arrangement and terminal connections.
• Operating hardware: Establish whether the required handle and shaft are already available or need to be ordered separately.
• Short-circuit coordination: Confirm the protective device and fuse coordination required for the installation.
• Physical fit: Check the 165 × 146 × 120 mm body dimensions, mounting position and conductor arrangement.

The switch-disconnector provides isolation; it should not be assumed to provide overcurrent protection by itself. The protective arrangement must be selected in accordance with the manufacturer's coordination data and the applicable installation requirements.

Is OTDC200GV11 rated for 1500 V DC at 200 A in every application?

Not under every utilization category. ABB lists 200 A under DC-21B and 100 A under DC-PV2 for this model. The appropriate rating depends on the actual switching duty and application, so the two figures should not be used interchangeably.

Does the OTDC200GV11 come with a handle and shaft?

ABB's OTDC S-series catalogue states that handles, shafts and other hardware are not included with the basic switch. Check the accessory requirements for the intended mounting and operating arrangement before ordering.

What is the difference between OTDC200GV11 and OTDC200GV22?

The GV11 is a two-pole, single-circuit configuration with a front-operated mechanism between the poles. The GV22 uses a four-pole arrangement with two circuits. The order codes are different, and the models should not be treated as direct substitutes simply because both carry the OTDC200 designation.

When would the OTDC200GV11-ESS variant be relevant?

The ESS version is intended for applications requiring higher conditional short-circuit values with the specified fuse coordination. It has its own product code, 1SCA161987R1001. Selection should follow ABB's fuse-coordination tables and the requirements of the actual installation.

How can I verify that I have the correct replacement?

Match the complete model and order code first, then confirm the voltage, current category, pole arrangement, operating mechanism and required accessories. If the existing switch is part of a photovoltaic or other high-voltage DC system, also verify the short-circuit protection and coordination requirements before installation.

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