3RT2027-1AD20

Siemens 3RT2027-1AD20 Power Contactor 48V Coil 32A
Siemens 3RT2027-1AD20 Power Contactor 48V Coil 32A

The 3RT2027-1AD20 is a Siemens SIRIUS S0 size three-pole power contactor with a 48V AC (50/60Hz) low-voltage control coil, AC-3 rated 32A/15kW, screw terminal design, 690V insulation class, and a mechanical life of 10 million cycles.

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Siemens 3RT2027-1AD20 Power Contactor 48V Coil 32A
Product Positioning

The 3RT2027-1AD20 is a Siemens SIRIUS 3RT2 series S0 size three-pole power contactor. Its 48V AC (50/60Hz) control coil is a low-voltage control coil, suitable for applications with specific safety voltage requirements for the control circuit, or for use with a 48V control transformer output. The main circuit AC-3 is rated at 32A/15kW (400V), and still has a switching capacity of 21A/18.5kW at 690V. The overall structure is the same as the standard version in the same series, and the screw terminal wiring facilitates wiring and maintenance.

Core Product Advantages and Features
48V AC low-voltage control coil
50/60Hz dual-frequency universal, suitable for applications with high requirements for the safety voltage of the control circuit.
AC-3 32A/15kW rated
It can achieve 32A/15kW under 400V/500V loads, and still has 21A/18.5kW switching capacity under 690V.
S0 compact body
The compact design of 45×85×97mm allows for high flexibility in installation within the distribution box.
High mechanical life and international certification
It has a mechanical life of 10 million cycles and is certified by multiple standards including UL, CSA, CCC, KC, and EAC.
project Specification
Model (MLFB) 3RT2027-1AD20
Series/Size SIRIUS 3RT2,S0
Extreme number 3 poles
AC-3 rated (400V/500V) 32A / 15kW
AC-3 rated (690V) 21A / 18.5kW
Control coil voltage 48V AC, 50/60Hz
Terminal type Screw terminals (main circuit 1–10mm², auxiliary circuit 0.5–2.5mm²)
External dimensions (width × height × depth) 45 × 85 × 97 mm
Mechanical life 10 million times
Electrical life (AC-4, 400V, 12A) Approximately 200,000 times
Rated insulation voltage 690V (Pollution Level 3)
IP protection rating (positive) IP20
Operating temperature range -25°C ~ +60°C
Certification UL, CSA, CCC, KC, EAC, and also ship classification certification, RoHS compliant.

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