Skip to content
To take full advantage of this site, please enable your browser's JavaScript feature.
Learn how
My Cart
SPBBreakers
Menu
Search store
Submit search
About Us
Services
Warranty
Contact
Pow-R Breaker
Identify SPB Breaker
SPB 50 (SPBSR) - OBSOLETE
SPB 65 (SPBSR) - OBSOLETE
SPB 100 (SPBR)
SPB 150 (SPBHR) - OBSOLETE
Non-Automatic Switch (SPBN)
Non-Automatic Switch (SPBNH)
Renewal Parts and Accessories
Key Interlock Provisions
Breaker Cover
Cover Assemblies
Cover Accesories
Deadfront Shields
Door Escutcheons
Trip Unit Cover Plate Assemblies
Electrical Attachments
CT Ground Faults (Secondary Current Transformer)
CT Secondary (Dual Current Transformer Arrangement)
Secondary Connectors
Plate Assemblies
Pin Housing Assembly
Secondary Contact Assembly
Auxilliary Switches
Electrical Operator Kits
Gear - Motors
Handles - Hub
Charging Handles
Charging Hub Assemblies
Spring Release Kits
With Antipump Relay
400-3150 A Breakers
Fixed
Through-the-Door
4000 or 5000 A Breakers
Fixed
Through-the-Door
Without Antipump Relay
400-3150 A Breakers
Fixed
Through-the-Door
4000 or 5000 A Breakers
Fixed
Through-the-Door
Shunt Trip Kits
Shunt Trip Assembly Kits (400-5000 A Breakers) Through-the-Door
Shunt Trip Assembly Kits (400-5000 A Breakers) Behind-the-Door and Fixed
Capacitor Trip Devices (For Use with DC Shunt Trips)
Trip Units - Rating Plugs
Digitrip 510
Digitrip 910
Rating Plugs
Digitrip Rating Plugs for 510, 610, 810, 910
Terminals - Drawout Stabs
Primary Drawout Stabs
Pressure Terminals for Fixed, Front Connected Breakers (SPB-50 and SPB-60 Only)
T-Connectors for Fixed Mounted Rear Connected Breakers
Undervoltage Release
UVR Kits
Remote Time Delays for Undervoltage Releases
Nav Menu 4
Nav Menu 5
Nav Menu 6
Nav Menu 7
Nav Menu 8
Home
>
Shunt Trip Kits
>
Shunt Trip Assembly Kits (400-5000 A Breakers) Behind-the-Door and Fixed
>
Shunt Trip Assembly Kit For 400-3150a Breakers, Operating Voltage 125vdc. Behind The Door And Fixed Style #1221C21G12 CAT #SPBST125D
1221C21G12 SPB Shunt Trip Assembly by Eaton
Product Code:
1221C21G12
Request for Quote
Description
SPB BREAKER SHUNT TRIP ASSEMBLY KIT FOR 400-3150A BREAKERS, OPERATING VOLTAGE 125VDC. BEHIND THE DOOR AND FIXED STYLE #1221C21G12 CAT #SPBST125D
Related Items
Shunt Trip Assembly Kit For 400-3150a Breakers, Operating Voltage 48vdc. Behind The Door And Fixed Style #1221C21G10 CAT #SPBST048D
Shunt Trip Assembly Kit For 4000/5000a Breakers, Operating Voltage 24vac 50/60hz. Behind The Door And Fixed Style #1221C21G13
Shunt Trip Assembly Kit For 4000/5000a Breakers, Operating Voltage 480vac 50/60hz. Behind The Door And Fixed Style #1221C21G18
Shunt Trip Assembly Kit For 400-3150a Breakers, Operating Voltage 600vac 50/60hz. Behind The Door And Fixed Style #1221C21G07 CAT #SPBST600A
Shunt Trip Assembly Kit For 4000/5000a Breakers, Operating Voltage 240vac 50/60hz. Behind The Door And Fixed Style #1221C21G17
Shunt Trip Assembly Kit For 400-3150a Breakers, Operating Voltage 240vac 50/60hz. Behind The Door And Fixed Style #1221C21G05 CAT #SPBST240A
Shunt Trip Assembly Kit For 4000/5000a Breakers, Operating Voltage 48vac 50/60hz. Behind The Door And Fixed Style #1221C21G14
Shunt Trip Assembly Kit For 4000/5000a Breakers, Operating Voltage 24vdc. Behind The Door And Fixed Style #1221C21G20 CAT#SPBST024D4