Siemens 3RT6028-1AN20 SIRIUS 3-Pole Contactor 38 A AC-3, 18.5 kW, 220 V AC Coil Supplier | SIMPLYBUY
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Siemens 3RT6028-1AN20 SIRIUS 3-Pole Contactor 38 A AC-3, 18.5 kW, 220 V AC Coil
Siemens 3RT6028-1AN20 SIRIUS 3-Pole Contactor 38 A AC-3, 18.5 kW, 220 V AC Coil - Image 2

Siemens 3RT6028-1AN20 SIRIUS 3-Pole Contactor 38 A AC-3, 18.5 kW, 220 V AC Coil

Manufacturer: Siemens
Model: 3RT6028-1AN20
Type: SIRIUS Power Contactor
Main Poles: 3
AC-3 Rated Current: 38 A at 400 V
Motor Power: 18.5 kW at 400 V AC-3
Coil Voltage: 220 V AC, 50/60 Hz
Auxiliary Contacts: 1 NO + 1 NC
Application: Motor switching, motor starters, industrial control panels, machinery, and automation systems

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Product Description

The Siemens 3RT6028-1AN20 is a SIRIUS 3RT6 power contactor designed for switching three-phase motors and other industrial loads. It provides an AC-3 operational current rating of 38 A at 400 V and supports motors up to 18.5 kW at 400 V, with a 220 V AC 50/60 Hz control coil. The compact S0 frame includes one normally open and one normally closed auxiliary contact and supports both 35 mm DIN-rail and screw mounting.

Standard Features

  • 38 A AC-3 Motor Switching: Rated for 38 A at 400 V under AC-3 utilization conditions for reliable three-phase motor control.

  • 18.5 kW Motor Capacity: Supports three-phase motors rated up to 18.5 kW at 400 V AC-3.

  • 220 V AC Control Coil: Operates from a 220 V AC control supply at both 50 Hz and 60 Hz.

  • Integrated Auxiliary Contacts: Includes one NO and one NC instantaneous auxiliary contact for control, signaling, and interlocking functions.

  • Compact S0 Construction: The 45 mm wide S0 housing helps reduce panel space while maintaining a 38 A AC-3 switching rating.

  • Flexible Installation: Supports snap-on mounting to a 35 mm DIN rail as well as screw mounting, with screw-type electrical terminals.

  • Long Mechanical Service Life: Siemens specifies a typical mechanical life of 10 million operating cycles.

Technical Specifications

ParameterValue
TypeSIRIUS Power Contactor
Manufacturer Part Number3RT6028-1AN20
Series / SizeSIRIUS 3RT6 / S0
Main Poles3
AC-3 Rated Current38 A at 400 V; 21 A at 690 V
AC-1 Rated Current50 A at 40 °C; 42 A at 60 °C, up to 690 V
AC-3 Motor Power11 kW at 230 V; 18.5 kW at 400 V; 18.5 kW at 690 V
Motor Rating, UL/CSA25 hp at 460/480 V, 3-phase
Control Coil220 V AC, 50/60 Hz
Auxiliary Contacts1 NO + 1 NC instantaneous
Rated Operational VoltageUp to 690 V AC-3
Insulation / Impulse VoltageUi 690 V; Uimp 6 kV
Connection & MountingScrew terminals; 35 mm DIN-rail snap-on or screw mounting
Dimensions45 × 85 × 97 mm (Width × Height × Depth)
Operating Temperature-25 to +60 °C
Front ProtectionIP20; finger-safe from the front
Mechanical Service Life10,000,000 operating cycles, typical
Approvals & ConformityUL, CCC, EAC, RCM, CCS; EU Declaration of Conformity

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