3WT8121-8KF04-5AB1

Product ID:175511
Updated: 2026/4/22
Siemens 3WT8121-8KF04-5AB1

Key Features

  • 1Comply with international standards for safe, certified operation. 2、Integrate door sealing frame and mechanical reclosing lockout. 3、Replace auxiliary releases or trip units easily for future upgrades. 4、Feature clear ON-OFF and ready-to-close indicators with signaling switches. 5、Configure from 400A to 4000A with IP55 protection and 66kA capacity.
Product Details
3WT8121-8KF04-5AB1
Siemens

Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
Rated Voltage (V)
500
Description
3WT1, 1250A ETU47WT D/3P, 66kA; Electric Closing AC/DC110V; Shunt Trip AC/DC110V; Alarm Contacts; Safety Barrier; Door Frame; 2NO+2NC
Icw(kA)
50
Rated Operating Short-circuit Breaking Capacity Ics(kA)@400V or 415V
66
Control Voltage
AC/DC110V
Number of Poles
3P
Installation Method
D: Drawer Type
Trip Unit
ETU47WT【LSING With LCD Display】
Rated Current In(A)
1250
Rated Ultimate Breaking Capacity Icu(kA)@400V or 415V
66
Breaking Capacity Level
S:66kA
Specifications
3WT1【400-1600A】
Lifecycle
Delivery Release (PM300)
Country of Origin
China
ECCN
N
AL
N
Model Number
3WT8121-8KF04-5AB1

Specifications may be subject to change without notice