ABB - Installation Products TB27-20-6-R-S-N - Tru-Break Module, 27 kV/20 kA, 125 KV BIL, 50/60 Hz, MVS3 Compatible, No Electronic Interlock, No Motor, 600 Amp Interfaces, Included: (1) Ground Connector, (1) Ground Cable, (1) Linkage Kit, (1) Mounting Clips Kit, (1) Switch Handle, (3) Basic Insulating Plug with Caps, (3) Studs. Depth 21 inch, Width 20-1/4 inch, Height 28 inch approx. Temperature Range -40 to +65 Decrees C. Construction Submersible, Corrosion Resistant, Fully Shielded. Meets Standards IEEE C37.74, IEEE 386.
ABB - Installation Products

TB27-20-6-R-S-N

UPC: 075114417860


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Overview

The ABB Tru-Break Module (SKU: TB27-20-6-R-S-N) is a medium-voltage switchgear component engineered for reliable operation in utility, industrial, and renewable energy installations. This 27 kV/20 kA module delivers a 125 kV BIL (Basic Impulse Level) rating for transient overvoltage protection, meeting IEEE C37.74 and IEEE 386 standards. It features a 600 Amp interface with fully shielded construction, ensuring safety and durability in submersible and corrosion-resistant applications. The module includes essential accessories: (1) ground connector, (1) ground cable, (1) linkage kit, (1) mounting clips kit, (1) switch handle, (3) basic insulating plugs with caps, and (3) studs. With dimensions of 21" depth, 20.25" width, and 28" height, it fits standard MVS3-compatible switchgear systems. Operating from -40°C to +65°C, this module is ideal for harsh environments requiring robust, maintenance-friendly switching solutions. Key applications include medium-voltage distribution systems, renewable energy integration, and industrial power management. The corrosion-resistant design ensures long-term reliability, while the included mounting hardware and grounding components reduce installation time. The fully shielded construction minimizes electromagnetic interference, making it suitable for sensitive electronic environments. Compatibility with ABB MVS3 systems ensures seamless integration into existing infrastructure.
  • 27 kV/20 kA rating with 125 kV BIL transient protection
  • 600 Amp interface with fully shielded construction
  • Submersible and corrosion-resistant design for harsh environments
  • Includes ground connector, ground cable, linkage kit, mounting clips, switch handle, insulating plugs, and studs
  • Operating temperature range: -40°C to +65°C
  • Dimensions: 21" depth, 20.25" width, 28" height
  • Meets IEEE C37.74 and IEEE 386 standards
  • Compatible with ABB MVS3 switchgear systems

Specifications

Amperage Rating
600 A
Connection Type
600 Amp Interfaces
Current Rating
20 kA
Frequency
50/60 Hz
Material
Corrosion Resistant, Fully Shielded
Mounting Type
Submersible
Operating Temperature
-40 to +65 C
Series
Tru-Break
Size
21 inch (Depth) x 20-1/4 inch (Width) x 28 inch (Height)
Special Features
20kA Rated with 600 Amp Interface
Standard
IEEE C37.74 , IEEE 386
Type
Tru-Break Module
Voltage Rating
27 kV
Package Dimensions (L x W x H)
0.01 IN x 0.01 IN x 0.01 IN
Package Dimensions (L x W x H)
0.0254 cm x 0.0254 cm x 0.0254 cm
Package Weight (Imperial)
1.0000 L
Package Weight (Metric)
0.4540 kg
Tru-Break Interlock Linkage Kit for MVI, Nominal Voltage: 27kV, Withstand Current: 20kA (SYM), Continuous Current: 600 Amps, Handle Position: Right, Mating Device: MVI3, Electrical Interlock : None, Spanish Labels and Instructions

TB27-20-6-R-I-N-S

Tru-Break Interlock Linkage Kit for MVI, Nominal Voltage: 27kV, Withstand Current: 20kA (SYM), Continuous Current: 600 Amps, Handle Position: Right, Mating Device: MVI3, Electrical Interlock : None, Spanish Labels and Instructions
Tru-Break Module, Nominal Voltage: 27 kV, Withstand Current: 20 kA (SYM), Continuous Current: 600 Amps, Handle Position: Right, Mating Device: MVI3, Electrical Interlock: DC

TB27-20-6-R-I-DC

Tru-Break Module, Nominal Voltage: 27 kV, Withstand Current: 20 kA (SYM), Continuous Current: 600 Amps, Handle Position: Right, Mating Device: MVI3, Electrical Interlock: DC
Tru-Break Module, Nominal Voltage: 27 kV, Withstand Current: 20 kA (SYM), Continuous Current: 600 Amps, Handle Position: Right, Mating Device: MVS3, Electrical Interlock: DC

TB27-20-6-R-S-DC

Tru-Break Module, Nominal Voltage: 27 kV, Withstand Current: 20 kA (SYM), Continuous Current: 600 Amps, Handle Position: Right, Mating Device: MVS3, Electrical Interlock: DC
3/4 Inch 316 Stainless Steel Form 8 (LB) Conduit Body, Gasket and Cover with Polished Finish

LB28SST-TB

3/4 Inch 316 Stainless Steel Form 8 (LB) Conduit Body, Gasket and Cover with Polished Finish
3/4 Inch to 1 Inch Male Enlarger, Malleable Iron for Use with Rigid/IMC Conduit

1246-TB

3/4 Inch to 1 Inch Male Enlarger, Malleable Iron for Use with Rigid/IMC Conduit
3/4 IN CONDUIT BODY, ALUM, LL, FM9

LL29SA

3/4 IN CONDUIT BODY, ALUM, LL, FM9
2 IN CONDUIT BODY, ALUM, T, FM9

T69SA

2 IN CONDUIT BODY, ALUM, T, FM9
2 IN CONDUIT BODY, ALUM, LR, FM9

LR69SA

2 IN CONDUIT BODY, ALUM, LR, FM9

Frequently Asked Questions

What are the dimensions of the single-phase module?

The single-phase module is approximately 20 in high, 6.44 in wide, and 11.27 in deep, weighing 25 lb.

What are the voltage and current ratings?

The Tru-Break module is rated for 15–29.3 kV systems, 800 A continuous load current, and 20 kA short circuit withstand current.

What types of systems is the module available for?

The Tru-Break switchgear module is available in both three-phase and single-phase models.

What is the impulse voltage withstand rating?

The module is capable of withstanding a full 125 kV basic insulation level (BIL) impulse voltage.

What environments is the module designed for?

It is submersible and storm-hardened, designed for use in harsh vault and pad-mount environments.

What type of connection interface does it use?

It uses an IEEE 386 600-amp interface bolted connection. ANSI/IEEE standard 600-amp bolted connection points are available.

What Elastimold products are compatible with this option?

It is compatible with 1-phase or 3-phase MVS molded vacuum switches and MVI molded vacuum interrupters at 15 kV and 27 kV.

Does the Tru-Break module require maintenance?

No, it is considered maintenance-free because it contains no oil or gas to monitor or maintain.

What safety features does the module include?

It features dead-front construction, clear visual verification of circuit isolation, and a positive-latching handle.

What are the dimensions of the three-phase module?

The three-phase module is approximately 20 in high, 20.28 in wide, and 16.12 in deep, weighing 97 lb.

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