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STR MasterPact Programmers

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Part Number
PRICE
Manufacturer
STR18M
STR18M
Limited Stock
From
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Merlin Gerin
STR28D
STR28D
In Stock
From
$1,262.47
Merlin Gerin
STR28D-LI-1200A
STR28D-LI-1200A
In Stock
From
$1,102.70
Merlin Gerin
STR28D-LI-800A
STR28D-LI-800A
In Stock
From
$1,141.60
Merlin Gerin
STR308ST-LSG-4000A
STR308ST-LSG-4000A
In Stock
From
$2,788.75
Merlin Gerin
STR38S
STR38S
In Stock
From
$1,895.22
Merlin Gerin
STR38S-1600A
STR38S-1600A
Limited Stock
From
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Merlin Gerin
STR38S-LSI-800A
STR38S-LSI-800A
In Stock
From
$289.32
Merlin Gerin
STR58U
STR58U
In Stock
From
$330.22
Merlin Gerin
STR58U-LSI
STR58U-LSI
Limited Stock
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Schneider Electric
STR58U-LSI-1200A
STR58U-LSI-1200A
In Stock
From
$2,573.96
Merlin Gerin
STR58U-LSI-1600A
STR58U-LSI-1600A
In Stock
From
$3,394.72
Merlin Gerin
STR58U-LSI-2000A
STR58U-LSI-2000A
In Stock
From
$293.26
Merlin Gerin
STR58U-LSI-2500A
STR58U-LSI-2500A
In Stock
From
$491.94
Merlin Gerin
STR58U-LSI-3000A
STR58U-LSI-3000A
In Stock
From
$658.86
Merlin Gerin
STR58U-LSI-4000A
STR58U-LSI-4000A
In Stock
From
$1,881.54
Merlin Gerin
STR58U-LSIG-1200A
STR58U-LSIG-1200A
In Stock
From
$1,837.65
Merlin Gerin
STR58U-LSIG-1600A
STR58U-LSIG-1600A
Limited Stock
From
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Merlin Gerin
STR58U-LSIG-3000A
STR58U-LSIG-3000A
In Stock
From
$1,168.37
Merlin Gerin
STR28D-LI-2000A
STR28D-LI-2000A
In Stock
From
$544.86
Merlin Gerin
STR28D-LI-3000A
STR28D-LI-3000A
In Stock
From
$383.50
Merlin Gerin
STR58U-LSI-800A
STR58U-LSI-800A
Limited Stock
From
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Merlin Gerin
STR28D-LI-1600A
STR28D-LI-1600A
Limited Stock
From
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Merlin Gerin
STR38S-1000A
STR38S-1000A
Limited Stock
From
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Merlin Gerin

Merlin Gerin, Square D and Schneider MasterPact Protection
Electrical.com is a leading supplier of Merlin Gerin Compact & MasterPact circuit breakers and circuit breaker parts. We offer the Merlin Gerin and Square D Insulated Case M and MP MasterPact circuit breakers from 800A-6300A. And we offer the Merlin Gerin Molded Case Compact Series frames up to 2500A, including obsolete and late models of NS, NSF, NSJ, CK, CM and much more. Typically when a MasterPact circuit breaker fails, it is the trip unit or programmer that has gone defective. We offer several solid state models including STR18M, STR28D, STR23SP, STR38S and STR58U with a variety of trip unit functions available. The product selection menu below is designed to assist you in finding the exact programmer or trip unit that you require.

  • Solid State Protection
  • Ground Fault Protection
  • Communication Features