3US5540-2A

Product ID:112601
Updated: 2026/4/3
Siemens 3US5540-2A

Key Features

  • 1Ensure reliable protection by detecting overloads in industrial equipment. 2、Apply versatilely for 3TS33/34 AUX contacts in various settings. 3、Integrate easily with a compact 54x92x146 mm design. 4、Achieve high accuracy with 10 A tripping class for precise detection. 5、Meet compliance standards including eClass and ETIM classifications.
Product Details
3US5540-2A
Siemens

Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
Operating Ambient Temperature
-40~+70°C
Operating Altitude
2000m
Rated Voltage
AC400V
Matching Contactor
S1 [3TS33/34]
Mounting Method
Plug-in Installation with Contactor
Specification
S1
Load Class
CLASS 10
Current Setting Range
10-16A
Rated Current (AC-3)
Max S1 size 32A
Product Series
3US5/6 Series
Lifecycle
Delivery Release (PM300)
Country of Origin
China
ECCN
N
AL
N
Model Number
3US5540-2A

Specifications may be subject to change without notice