ABB - Installation Products 273ESA-9 - Shielded Surge Arrester, ESA Elbow Surge Arrester, 25kV, MCOV KV RMS is 7.6
ABB - Installation Products

273ESA-9

UPC: 783786857821


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Overview

The ABB 273ESA-9 Shielded Surge Arrester is a 25kV ESA Elbow Surge Arrester designed for medium-voltage distribution systems. With a Maximum Continuous Operating Voltage (MCOV) of 7.6kV RMS, this arrester provides reliable overvoltage protection for critical infrastructure such as substations, transformers, and switchgear. The shielded design ensures enhanced safety and durability in outdoor and indoor applications, reducing the risk of equipment failure due to transient voltage spikes. Compatible with standard 25kV class systems, the 273ESA-9 is ideal for utilities and industrial facilities requiring robust surge protection. The elbow configuration simplifies installation and maintenance, allowing for quick replacement without full system shutdown. This arrester meets industry standards for medium-voltage surge protection, ensuring long-term reliability in harsh environments. The ABB 273ESA-9 is a cost-effective solution for safeguarding sensitive electrical components from lightning-induced surges and switching transients.
  • 25kV rated shielded surge arrester for medium-voltage systems
  • Maximum Continuous Operating Voltage (MCOV) of 7.6kV RMS
  • ESA Elbow design for simplified installation and maintenance
  • Compatible with standard 25kV class systems
  • Enhanced safety and durability in outdoor and indoor applications

Specifications

Amperage Rating
200 A
Application
Underground Medium Voltage Applications
Connection
Push-In
Environmental Conditions
All Weather Conditions, UV Resistant
Insulation
True
Material
Housing - EPDM Molded Rubber
Mounting Type
Elbow
Operating Temperature, Maximum
150 F
Operating Temperature, Maximum
65 C
Operating Temperature, Minimum
-40 F
Operating Temperature, Minimum
-40 C
Series
ESA
Size
Length to Center of Bushing 5.54 in, Width 7.54 in
Standard
ANSI/IEEE Standard 386, IEEE C62.11-2012
Type
Elbow Surge Arrestor
Voltage Rating
25 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
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Frequently Asked Questions

What are the key features of Elastimold shielded surge arresters?

They are fully shielded and fully submersible, providing lightning and switching surge protection for underground medium voltage applications.

What are the benefits of using a bushing arrester?

Bushing arresters increase operability, reduce transformer overcrowding, and require significantly less space compared to an elbow arrester with a feed-through insert.

What type of bushing do PSA and BSA arresters have?

Elastimold PSA and BSA arresters are equipped with a fully rated 200 amp switching and fault-close loadbreak bushing.

What does MCOV mean for surge arresters?

MCOV (maximum continuous operating voltage) is the maximum RMS power-frequency voltage that can be continuously applied between the arrester's terminals.

How is the correct arrester size selected?

Arrester size is selected based on the maximum continuous operating voltage (MCOV) line-to-ground, ensuring it is not exceeded by the system's normal line-to-ground voltage.

What is an advantage of externally mounted bushing arresters?

Externally mounted bushing arresters provide surge protection benefits without the negative factors associated with under-oil arresters.

What is required for installing a bushing arrester?

For installing a bushing arrester, transformers must be specified with bushing wells.

What current and voltage ratings are available for Elastimold arresters?

Elastimold shielded surge arresters are available for 200 amps and 600 amps at 15 kV, 25 kV, and 35 kV.

What are the specifications of the arrester's ground lead?

The #4 AWG flexible copper ground lead is tethered to the jacket and can withstand 10,000 amps for 10 cycles without fusing.

What safety standard do Elastimold arresters conform to?

Elastimold shielded surge arresters fully conform to the safe-failure mode specified by the IEEE C62.11-2012 standard.

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