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POBT Series

Transformer Bushing

  • for outdoor service
  • air to oil environment
  • up to 46kV/250kV BIL
  • up to 5000 amps
  • 4.00"- 6.00" below flange diameter
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Voltage (kV)
BIL (kV)
Current (Amps)
No. of Mounting Holes
Shield Length (Inches)
Drawing Purchase
165-130A-01 - 15 110 1200 4 7.38 Request Quote Cart
165-135A-01 - 15 110 1200 6 7.38 Request Quote Cart
165-150A-01 - 15 110 2000 4 7.38 Request Quote Cart
165-155A-01 - 15 110 2000 6 7.38 Request Quote Cart
165-430A-01 - 25 150 1200 4 7.38 Request Quote Cart
165-435A-01 - 25 150 1200 6 7.38 Request Quote Cart
165-450A-01 - 25 150 2000 4 7.38 Request Quote Cart
165-455A-01 - 25 150 2000 6 7.38 Request Quote Cart
165-730A-01 - 35 200 1200 4 7.38 Request Quote Cart
165-735A-01 - 35 200 1200 6 10 Request Quote Cart
Voltage (kV)
BIL (kV)
Current (Amps)
No. of Mounting Holes
Shield Length (Inches)
Drawing Purchase
165-130A-01 - 15 110 1200 4 7.38 Request Quote Cart
165-135A-01 - 15 110 1200 6 7.38 Request Quote Cart
165-150A-01 - 15 110 2000 4 7.38 Request Quote Cart
165-155A-01 - 15 110 2000 6 7.38 Request Quote Cart
165-430A-01 - 25 150 1200 4 7.38 Request Quote Cart
165-435A-01 - 25 150 1200 6 7.38 Request Quote Cart
165-450A-01 - 25 150 2000 4 7.38 Request Quote Cart
165-455A-01 - 25 150 2000 6 7.38 Request Quote Cart
165-730A-01 - 35 200 1200 4 7.38 Request Quote Cart
165-735A-01 - 35 200 1200 6 10 Request Quote Cart
Voltage (kV)
BIL (kV)
Current (Amps)
No. of Mounting Holes
Shield Length (Inches)
Drawing Purchase
165-130A-01 - 15 110 1200 4 7.38 Request Quote Cart
165-135A-01 - 15 110 1200 6 7.38 Request Quote Cart
165-150A-01 - 15 110 2000 4 7.38 Request Quote Cart
165-155A-01 - 15 110 2000 6 7.38 Request Quote Cart
165-430A-01 - 25 150 1200 4 7.38 Request Quote Cart
165-435A-01 - 25 150 1200 6 7.38 Request Quote Cart
165-450A-01 - 25 150 2000 4 7.38 Request Quote Cart
165-455A-01 - 25 150 2000 6 7.38 Request Quote Cart
165-730A-01 - 35 200 1200 4 7.38 Request Quote Cart
165-735A-01 - 35 200 1200 6 10 Request Quote Cart
Voltage (kV)
BIL (kV)
Current (Amps)
No. of Mounting Holes
Shield Length (Inches)
Drawing Purchase
165-130A-01 - 15 110 1200 4 7.38 Request Quote Cart
165-135A-01 - 15 110 1200 6 7.38 Request Quote Cart
165-150A-01 - 15 110 2000 4 7.38 Request Quote Cart
165-155A-01 - 15 110 2000 6 7.38 Request Quote Cart
165-430A-01 - 25 150 1200 4 7.38 Request Quote Cart
165-435A-01 - 25 150 1200 6 7.38 Request Quote Cart
165-450A-01 - 25 150 2000 4 7.38 Request Quote Cart
165-455A-01 - 25 150 2000 6 7.38 Request Quote Cart
165-730A-01 - 35 200 1200 4 7.38 Request Quote Cart
165-735A-01 - 35 200 1200 6 10 Request Quote Cart

General Description
-Voltage ratings from 8.7kV to 46kV
- Current rating up to 5000A
- Flammability rating, UL 94 V0
- Individual test reports provided
- Designed and tested to meet applicable CSA, IEC, IEEE standards

Applications
The POBT series bushings are designed for outdoor service and UV exposure for ambient temperatures between -50°C and +75°C. Applications include:
- Highly polluted and/or humid applications
- Bushing for liquid filled transformers
- Design options for extreme environmental conditions are available

Construction
- Cast in high dielectric strength Cycloaliphatic grey epoxy
- Capacitance graded condenser type bushings with internal ground shield for control of electric field distribution
- Customized ground shield and bushing lengths are available
- Electrolytic copper studs with threaded terminations are standard.  See options tab for alternatives.
- Four or six hole mounting options available
- Capacitive test tap available for some bushing styles

Conductor Terminations

Threaded, milled flat or spade connections are available for many internal and external terminations.

Plating

Tin plated conductors are standard for transformer bushings. Available alternatives are silver or non-plated conductors.

Accessories: Gaskets and NEMA Pad Connectors

- 1/8" or 1/4" thick nitrile gaskets are available upon request. - 2 to 8 hole NEMA thread-on and clamp-on spade