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1-800-998-1621

Main Breaker Kits

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SIEM MBK100AÿSIEM MBK100A
SIEM MBK100A
Part #SIEM MBK100A 100AMP MAIN BREAKER KIT FOR USE IN ULTIMATE LOADCENTERS 1PHASE Siemens Main Breaker Kit, Type ST Low Voltage Transfer Switch, 120/240 VAC, 100 A, 22 kA Interrupt, EQ Frame, Thermal/Magnetic Trip, 2 Pole, 1 ph, NEMA 1 Enclosure, Bolt-On/P
MFG #MBK100A
15 in Stock. More available 02/10/2025
$107.97 per EA (1) / EA
Regular Price: $676.00 per EA (1), you save $568.03 (84%)
SIEM MBK200ÿSIEM MBK200
SIEM MBK200
Part #SIEM MBK200 200AMP MAIN BREAKER KIT FOR USE IN EQIII LOADCENTERS 1PHASE (OLDER STYLE) LOOKS LIKE A 4POLE Siemens SpeedFax Main Circuit Breaker, Type SL Transfer Switch, Series: MBK, 120/208 VAC, 200 A, 22 kA Interrupt, EQ Frame, Thermal/Magnetic Trip
MFG #MBK200
3 in Stock. More available 02/06/2025 and 02/10/2025
$427.88 per EA (1) / EA
Regular Price: $1884.00 per EA (1), you save $1,456.12 (77%)
SIEM MBK200AÿSIEM MBK200A
SIEM MBK200A
Part #SIEM MBK200A 200AMP MAIN BREAKER KIT FOR USE IN ULTIMATE LOADCENTERS 1PHASE (NEW STYLE) EQ8695 Siemens Molded Case Circuit Breaker, Type EQ, 120/240 VAC, 200 A, 22 kA Interrupt, EQ Frame, LI/Thermal Magnetic Trip, 2 Pole, 1 ph, Bolt-On Connection, 6.
MFG #MBK200A
13 in Stock. More available 02/13/2025
$272.34 per EA (1) / EA
Regular Price: $1705.00 per EA (1), you save $1,432.66 (84%)
SIEM MBK100AÿSIEM MBK100A
SIEM MBK100A
Part #SIEM MBK100A 100AMP MAIN BREAKER KIT FOR USE IN ULTIMATE LOADCENTERS 1PHASE Siemens Main Breaker Kit, Type ST Low Voltage Transfer Switch, 120/240 VAC, 100 A, 22 kA Interrupt, EQ Frame, Thermal/Magnetic Trip, 2 Pole, 1 ph, NEMA 1 Enclosure, Bolt-On/P
MFG #MBK100A
15 in Stock. More available 02/10/2025
$107.97 per EA (1) / EA
Regular Price: $676.00 per EA (1), you save $568.03 (84%)
SIEM MBK200ÿSIEM MBK200
SIEM MBK200
Part #SIEM MBK200 200AMP MAIN BREAKER KIT FOR USE IN EQIII LOADCENTERS 1PHASE (OLDER STYLE) LOOKS LIKE A 4POLE Siemens SpeedFax Main Circuit Breaker, Type SL Transfer Switch, Series: MBK, 120/208 VAC, 200 A, 22 kA Interrupt, EQ Frame, Thermal/Magnetic Trip
MFG #MBK200
3 in Stock. More available 02/06/2025 and 02/10/2025
$427.88 per EA (1) / EA
Regular Price: $1884.00 per EA (1), you save $1,456.12 (77%)
SIEM MBK200AÿSIEM MBK200A
SIEM MBK200A
Part #SIEM MBK200A 200AMP MAIN BREAKER KIT FOR USE IN ULTIMATE LOADCENTERS 1PHASE (NEW STYLE) EQ8695 Siemens Molded Case Circuit Breaker, Type EQ, 120/240 VAC, 200 A, 22 kA Interrupt, EQ Frame, LI/Thermal Magnetic Trip, 2 Pole, 1 ph, Bolt-On Connection, 6.
MFG #MBK200A
13 in Stock. More available 02/13/2025
$272.34 per EA (1) / EA
Regular Price: $1705.00 per EA (1), you save $1,432.66 (84%)