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3RT20281AC24 Tech Specifications

Category Contactors (Electromechanical)
Manufacturer Siemens
Mounting Type Chassis Mount, DIN Rail
Mfr Siemens
Package Box
Product Status Active
Contact Materials -
CoilResistance -
Base Product Number 3RT2028
Dim (W x H x D) 45 x 85 x 141 mm
RoHS-compliant Yes
Connections Screws
No. of pins 3-pin
Number of auxiliary contacts as normally open contact 2auxiliary contacts as normally open contacts
Nominal voltage 690V AC
Number of normally open contacts as main contact 3normally open contacts as main contacts
Rated operation current Ie at AC-4, 400 V 22A
Min. temperature -25°C
Rated operation current Ie at AC-3, 400 V 38A
Content 1pc(s)
Max. temperature +60°C
Rated operation power at AC-3, 400 V 18.5kW
Rated operation current Ie at AC-1, 400 V 50A
Number of auxiliary contacts as normally closed contact 2auxiliary contacts as normally closed contacts
Rated control supply voltage at AC 50 Hz 24 - 24
Type of electrical connection of main circuit Screw connection
Modular version Yes
Rated operation power NEMA 18.387
Rated control supply voltage at AC 60 Hz 24 - 24
Voltage type for actuating AC
Number of normally closed contacts as main contact 0
Rated operation power at AC-4, 400 V 11
Rated control supply voltage at DC 0 - 0
Series SIRIUS
Operating Temperature -25°C ~ 60°C
Type S0
Depth 141mm
Termination Style Screw Terminal
Durability 1000 0000
Contact Form 3PST-NO (3 Form A)
Operate Time 40 ms
Coil Voltage 24VAC
Switching Voltage 690VAC - Max
Release Time 16 ms
Must Operate Voltage 20.4 VAC
Contact Rating (Current) 38 A
Coil Power 79VA
Must Release Voltage -
Features Auxiliary Contacts
Width 45mm
Height 85mm
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