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  13. IEC Magnetic Contactor, 1NC/1NO, 24V DC, 3 P, Non-Reversing, Screw
Siemens IEC Magnetic Contactor, 1NC/1NO, 24V DC, 3 P, Non-Reversing, Screw 3RT20281BB40 - main

IEC Magnetic Contactor, 1NC/1NO, 24V DC, 3 P, Non-Reversing, Screw

  • Mfr # 3RT20281BB40

  • Zoro # G4320845

product price: $324.31
/ea
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Key Features

Auxiliary Contact Form
1NC/1NO
Coil Voltage
24V DC
Number of Poles
3
Reversing Capability
Non-Reversing
Terminal Connection Type
Screw
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Specifications

Product Information

MFR #
3RT20281BB40
Zoro #
G4320845
UPC #
662643918045
Country of Origin
Germany

Dimensions

Overall Height
3.6 in
Overall Depth
4.1 in
Mounting Hole Diameter
0.19 in
Frame Size
S0
Mounting Hole Distance - Width
1.38 in
Mounting Hole Distance - Height
2.36 in
Overall Width
1.7 in

Details

Item
IEC Magnetic Contactor
Auxiliary Contact Form
1NC/1NO
Coil Voltage
24V DC
Number of Poles
3
Reversing Capability
Non-Reversing
Terminal Connection Type
Screw
Number of Auxillary Contacts
2
Standards
REACH Art 33, WEEE (2012/19/EU)
HP @ 1 Phase - 230V
5
Reversing
No
Enclosure NEMA Rating
No Enclosure
HP @ 3 Phase - 575V
25 hp
Frame / Series / Class / Code
S0
Series
SIRIUS 3RT20
Max. Operating Watts
19 kW (at 400V, AC-3), 28 kW (at 400V, AC-1)
IP Rating
IP20
Watts Loss
3.2W (Current Dependent); 5.9W (Current Independent)
Full Load Current - Resistive
50 A
Horsepower @ Three Phase - 240V AC
10 hp
Mechanical Operating Durability
10,000,000
Horsepower @ Single Phase - 240V AC
5 hp
Mounting Style
DIN Rail, Surface
Number of Normally Open Main Contacts
3
Full Load Current - Inductive
38 A
NEMA Enclosure Rating
No Enclosure
Horsepower @ Three Phase - 480V AC
25 hp
Horsepower @ Single Phase - 120V AC
3 hp
Maximum Voltage Rating
690V AC
Response Time
10 to 17 msec (AC Operation Closing Delay Operation Opening Delay Operating Times for 1.0 x Us1), 15 to 17.5 msec (DC Operation Opening Delay Operating Times For 0.8 ... 1.1 X Us1), 16 to 17 msec (DC Operation Opening Delay Operating Times for 1.0 x Us), 4 to 16 msec (AC Operation Opening Delay Operating Times for 0.8 ... 1.1 X Us1), 4 to 16 msec (AC Operation Opening Delay Operating Times for 1.0 x Us), 50 to 170 msec (DC Operation Closing Delay Operating Times for 0.8 ... 1.1 X Us1), 55 to 80 msec (DC Operation Closing Delay Operating Times for 1.0 x Us), 8 to 40 msec (AC Operation Closing Delay)
Mounting Postion
Vertical
Minimum Operating Temperature
-13 Degrees F
Maximum Operating Temperature
140 Degrees F
Phase
Three
Includes Auxiliary Contacts
Yes
Horsepower @ Three Phase - 208V AC
10 hp
Contactor Style
IEC
Embedded Surge Suppressor
No
Horsepower @ Three Phase - 600V AC
25 hp

Description

The Siemens IEC Magnetic Contactor is a 3-pole, non-reversing, electrically operated switch rated for operation within IEC-standard system parameters. It operates with a 24 V DC coil as specified and is equipped with auxiliary contacts of the specified configuration. The device uses screw terminals for connections and is part of the SIRIUS 3RT20 family, with a compact, modular IEC design compatible with standard control panel configurations based on specifications.

Coil Voltage: 24 V DC

  • Action / Reversing: Non-Reversing (Reversing: No)
  • Poles / Main Contacts: 3 poles; 3 normally open main contacts
  • Auxiliary Contacts: Yes; 2 auxiliary contacts total (1NO/1NC)
  • Auxiliary Contact Form / Configuration: 1NC/1NO (1NO/1NC)
  • Frame Size / Series: S0; SIRIUS 3RT20
  • Contactor Style: IEC
  • Electrical Connection: Screws
  • Embedded Surge Suppressor: No
  • Enclosure / IP Rating: No Enclosure; IP20
  • Dimensions: Depth 4.21 in; Height 3.6 in; Width 1.77 in
  • Voltage / Phase: 690V AC; Three-phase
  • Max Operating Watts: 19 kW (at 400V, AC-3); 28 kW (at 400V, AC-1)
  • Mechanical Durability: 10,000,000 cycles
  • Operating Temperature: -13 °F to 140 °F
  • Mounting: DIN Rail, Surface; Mounting Hole Diameter 0.19 in; Hole Distance (Height) 2.36 in; Hole Distance (Width) 1.38 in; Mounting Position: Vertical
  • Standards: REACH Art 33, WEEE (2012/19/EU)
  • Item: IEC Magnetic Contactor
  • Includes Auxiliary Contacts: Yes
  • Response Time: Various ranges; AC/DC operation with opening/closing delays; approximately 4 to 170 ms depending on mode

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