The SIEMENS 3RU21261DB0 is a thermal overload relay designed for inverse-time delayed protection of loads with normal starting against excessive temperature rises due to overload or phase failure. It protects three-phase and single-phase AC and DC motors. The relay features screw terminals for the main and auxiliary circuits.
Provides overload and phase failure protection.
Features manual and automatic reset options.
Includes 1 NO and 1 NC auxiliary contacts.
Product Highlights
The SIRIUS 3RU2 modular system offers a simple and efficient solution for motor protection with worldwide approvals and applications in hazardous areas.
Product Information
Standard Information
Brand: SIEMENS
Manufacturer Part Number: 3RU21261DB0
Country of Origin: Germany
Technical Specifications
GTiN
00662643918984
Type
Relay
Brand
SIEMENS
Class
Class 10
Width
1.700 in
Height
4.05 Inch
Length
3.7 Inch
Weight
0.350 lb
Amperage
2.2-3.2 Amp
Sub Brand
Sirius
Product UPC
66264391898
12-Digit UPC
662643918984
Applications
For Protection of Three Phase and Single Phase AC and DC Motors
Terminal Type
Screw
Contact Rating
3 A at 24/110/120/125 VAC, 2 A at 230 VAC, 1 A at 400 VAC, 2 A at 24 VDC, 0.3 A at 60 VDC, 0.22 A at 110/125 VDC, 0.11 A at 220 VDC
Connection Type
Screw Connection
Number of Poles
3 Pole
Country of Origin
Germany
Temperature Rating
-20 to 70 degrees C
Contact Configuration
1 NO, 1 NC
Operating Temperature
-20 degrees C
Environmental Conditions
80 to 50 C
UNSPSC Code
39120000
Current Rating
2.2 to 3.2 A
Dimensions
85 mm H x 45 mm W x 85 mm D
Manufacturer Part Number
3RU21261DB0
Maximum Operating Temperature
70 °C
Minimum Operating Temperature
-40 °C
Mounting Style
Direct To Contactor
Relay Type
Overload
Series
3RU2
Size
S0 in
Special Features
Display of Operating State on Device, RESET Button, STOP Button, TEST Function
Supply Voltage
690 V
Temperature Operating Range
-40 to 70°C °C
Frequency Rating
50 to 60 Hz
Mounting Type
Surface
Contact Form
1NC-1NO
Enclosure Type
IP20
Power Rating
1.1/1.5/2.2 kW
Application
For protection of 3-phase and 1-phase AC and DC motors
Overload Relay, Auxiliary Contact Form 1NO/1NC, Maximum Overload Relay Current Setting 3.2 A, Minimum Overload Relay Current Setting 2.2 A, Trip Class 10, Maximum Voltage Rating 690V AC, NEMA Size Not Applicable, Number of Poles 3, Number of Required Thermals 3, Reset Type Auto, Manual, Includes Thermal Units Yes, Mounting Style Direct To Contactor, Terminal Connection Type Screw Terminals, Compatible with Series SIRIUS, Frame Size S0, Relay Style IEC, Overload Protection Type Thermal
Item Height
4.200
Item Length
4.200
Item Width
2.100
California Prop 65 Warning
N
Coil Voltage
N/A
Power Source
N/A
Number of Batteries
N/A
Battery Size
N/A
Battery Included
No
Motor Type
N/A
Battery Capacity
N/A
Battery Life
N/A
Cable Length
N/A
Compatible Contactor Series
SIRIUS
Compatible Contactors
Frame Size S0
Frame Size
S0
Relay Style
IEC
Overload Protection Type
Thermal
Relay Mounting Style
Direct To Contactor
Thermal Units Required
None (Relay Includes Integrated Bimetallic Elements)
Phase
Three
Auxiliary Contacts Included
1NO/1NC
Maximum Overload Relay Current Setting
3.2 A
Minimum Overload Relay Current Setting
2.2 A
Maximum Voltage Rating
690V AC
Trip Class
10
Phase Loss Sensitivity
No
Reset Type
Auto; Manual
Wire Termination Type
Screw
IP Rating
IP20
Body Depth
2.63 in
Body Height
5.98 in
Body Width
1.77 in
Standards
REACH Art 33 Duty to Inform According to the Current List of Candidates Lead CAS-No. 7439-92-1 > 0, 1 % (w/w); RoHS 07/01/2006; WEEE (2012/19/EU) Take-Back Obligation