The Siemens 3RT2327-1AP00 is a genuine Siemens SIRIUS 3RT23 four-pole contactor designed for reliable switching of electrical loads in industrial control and automation applications. It is rated for 50 A in AC-1 utilization category at 400 V and 40°C, making it suitable for switching non-inductive or low-inductive loads such as heating equipment, resistive loads and industrial electrical systems.
This 4-pole Siemens contactor features a 230 V AC control voltage at 50 Hz and includes 1 NO + 1 NC auxiliary contacts for control, signaling and interlocking functions. The main circuit uses screw terminals, providing secure and practical electrical connections for industrial control panels. Its compact Size S0 construction makes it suitable for installations where reliable switching performance and efficient panel space utilization are required.
The 3RT2327-1AP00 Siemens contactor has 4 normally open (NO) main contacts, providing four-pole switching capability. The integrated auxiliary contacts can be used for control circuits, electrical interlocking, status signaling and automation functions.
With its 50 A AC-1 rating, 230 V AC coil and four-pole configuration, the Siemens 3RT2327-1AP00 is suitable for resistive load switching, heating systems, HVAC equipment, industrial automation panels, lighting systems, power distribution and machine control applications.
Siemens specifies a rated operational current of 50 A at AC-1, 400 V and 40°C. The contactor has a 690 V rated operating voltage capability, 6 kV surge withstand voltage for the main and auxiliary circuits, and IP20 front and terminal protection.
Genuine Siemens SIRIUS Contactor
Article Number: 3RT2327-1AP00
Product Family: SIRIUS 3RT23
Utilization Category: AC-1
Rated Operational Current: 50 A at 400 V / 40°C
Number of Poles: 4-pole
Main Contacts: 4 NO
Auxiliary Contacts: 1 NO + 1 NC
Control Voltage: 230 V AC
Control Frequency: 50 Hz
Connection Type: Screw Terminal
Contactor Size: S0
Rated Operating Voltage: up to 690 V
Main Circuit Surge Withstand Voltage: 6 kV
Auxiliary Circuit Surge Withstand Voltage: 6 kV
Front Protection: IP20
Terminal Protection: IP20
Integrated auxiliary switch
Suitable for AC-1 load switching
Suitable for industrial automation and electrical control applications
The Siemens 3RT2327-1AP00 AC-1 contactor is suitable for:
Resistive load switching
Industrial heating systems
Heating equipment
HVAC control systems
Industrial automation panels
Lighting control
Power distribution panels
Machine control cabinets
Industrial electrical systems
Manufacturing equipment
OEM control cabinets
Factory automation
AC load switching
Industrial control panels
Electrical switching applications
Reliable 50 A AC-1 switching capacity
Suitable for loads at 400 V AC
Four-pole design provides flexible circuit switching
Integrated 1 NO + 1 NC auxiliary contacts
230 V AC, 50 Hz control coil
Screw terminals provide secure electrical connections
Compact S0-size construction
Suitable for industrial control cabinets
Supports reliable switching of resistive and low-inductive loads
Suitable for automation and machine-control applications
High insulation and surge withstand capability
Genuine Siemens SIRIUS product
Suitable for OEM, panel-building and maintenance applications
The 3RT2327-1AP00 is a Siemens SIRIUS 3RT23 four-pole AC-1 contactor rated at 50 A at 400 V and 40°C, with a 230 V AC, 50 Hz control coil and 1 NO + 1 NC auxiliary contacts.
The contactor is rated for 50 A at AC-1, 400 V and 40°C.
The control coil operates at 230 V AC, 50 Hz.
It is a 4-pole contactor with 4 normally open main contacts.
The contactor includes 1 NO + 1 NC auxiliary contacts for control, signaling and interlocking functions.
The Siemens 3RT2327-1AP00 is a Size S0 contactor.
The contactor uses screw terminals for electrical connections.
The main circuit is specified for operating voltages up to 690 V AC under the applicable conditions.
The specified surge withstand voltage is 6 kV for the main circuit and 6 kV for the auxiliary circuit.
The 3RT2327-1AP00 is primarily an AC-1 contactor and should be selected according to its AC-1 rating and the actual load type. For standard motor switching, an appropriate AC-3-rated contactor should be selected based on the motor current and power.
It can be used in resistive load switching, heating systems, HVAC equipment, lighting control, industrial automation panels, power distribution and machine-control applications.
The front and terminals are specified with IP20 protection.
Yes. Its 50 A AC-1 rating, four-pole configuration, 230 V AC coil, integrated auxiliary contacts and compact S0 design make it suitable for a wide range of industrial control and electrical switching applications.
| Specification | Details |
|---|---|
| Product Name | Power Contactor |
| Brand | Siemens |
| Series | SIRIUS 3RT23 |
| Model Number | 3RT2327-1AP00 |
| SKU | 3RT2327-1AP00 |
| Product Type | Power Contactor |
| Utilization Category | AC-1 |
| Rated Operational Current (AC-1) | 50 A |
| Rated Operational Current (AC-3) | 15.5 A |
| Operating Power (AC-3 at 400V) | 7.5 kW |
| Number of Poles | 4 Pole |
| Main Contacts | 4 NO |
| Auxiliary Contacts | 1 NO + 1 NC |
| Coil Voltage | 230 V AC |
| Frequency | 50 Hz |
| Frame Size | S0 |
| Terminal Type | Screw Terminals |
| Rated Insulation Voltage (Ui) | 690 V |
| Surge Voltage Resistance | 6 kV |
| Mechanical Life | 10 Million Operations |
| Mounting Type | DIN Rail / Panel Mount |
| Operating Temperature | -25°C to +60°C |
| Weight | 0.478 kg |
| Product Family | Siemens SIRIUS Contactors |
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