3WT8121-8UG00-0AA1

Product ID:227193
Updated: 2026/4/3
Siemens 3WT8121-8UG00-0AA1

Key Features

  • 1Deliver robust protection with a high 1250A current rating. 2、Ensure compliance and safety with full CE certification. 3、Maximize uptime with advanced ETU47WT trip unit for precise overload and short-circuit protection. 4、Simplify maintenance with clear trip indicators and signaling switches. 5、Rely on durable construction rated for 66kA breaking capacity.
Product Details
3WT8121-8UG00-0AA1
Siemens

Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
Rated Voltage (V)
500
Description
3WT1, 1250A ETU47WT F/3P, 66kA; Electric Operation for Closing AC/DC220V; Shunt Trip AC/DC220V; Alarm Contacts; Door Frame; 2NO+2NC
Icw(kA)
50
Rated Service Short Circuit Breaking Capacity Ics(kA)@400V or 415V
66
Control Voltage
AC/DC220V
Number of Poles
3P
Installation Method
F: Fixed 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 Class
S:66kA
Specifications
3WT1【400-1600A】
Lifecycle
Delivery Release (PM300)
Country of Origin
China
ECCN
N
AL
N
Model Number
3WT8121-8UG00-0AA1

Specifications may be subject to change without notice