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Siemens 3RF2150-1AA45 1-Phase Solid State Relay - 50A

Siemens 3RF2150-1AA45 1-Phase Solid State Relay

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ManufacturerSiemens

Part number3RF2150-1AA45

Type Solid State Relay

Phase 1-Phase

Width 22.5 mm

Load Current 50 A

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50A switching capacity 48-600V AC load 4-30V DC control 1200V blocking voltage Compact 22.5mm width Screw terminals Zero-point switching

Product description

The Siemens 3RF2150-1AA45 is a 1-phase solid state relay from the SIRIUS 3RF21 series, designed for demanding industrial applications requiring high current and specific control voltages. It features a compact 22.5 mm width. This relay can handle loads up to 50A at voltages ranging from 48 to 600V AC. The control voltage is a low 4 to 30V DC, and it uses screw terminals for secure connections. It includes a blocking voltage of 1200V and operates with zero-point switching.

This semiconductor relay is ideal for applications where a low-voltage DC control signal is used to switch high-power AC loads. Its high blocking voltage and 50A capacity make it suitable for robust industrial automation, motor control, and power switching applications. The zero-point switching minimizes electrical noise, protecting sensitive control systems.

Stanlo Automation, your veteran-owned source for surplus industrial automation parts, offers the Siemens 3RF2150-1AA45. We pride ourselves on providing reliable, high-quality components. Source your critical parts from Stanlo Automation and benefit from our commitment to service and value.

Technical specifications

Type	Solid State Relay
Phase	1-Phase
Width	22.5 mm
Load Current	50 A
Load Voltage	48-600 V AC
Control Voltage	4-30 V DC
Blocking Voltage	1200 V
Terminals	Screw
Switching	Zero-point

Common applications

High-power AC Load Switching

Industrial Automation

PLC Control

Motor Control

Hazardous Area Applications (with appropriate enclosure)

Compatible systems

Siemens SIRIUS 3RF21 series

Also known as

Siemens 3RF2150-1AA45 SSR SIRIUS 3RF21 Relay Siemens 50A 48-600V 1200V Relay

Replaces / compatible with

Suitable for replacing mechanical contactors in applications requiring a high blocking voltage and low DC control input. Compatible with Siemens SIRIUS 3RF21 series accessories.

Technical note

Expert tip

The high blocking voltage makes this relay suitable for applications where surge protection is a concern.

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Frequently asked questions

What is the blocking voltage of the Siemens 3RF2150-1AA45 solid state relay?

The Siemens 3RF2150-1AA45 solid state relay features a blocking voltage of 1200V. It handles loads of 50A at 48-600V AC and is controlled by a 4-30V DC input.