Siemens SIRIUS 3RT2926-5AR61 Magnetic Coil 400V AC (50/60Hz) / 440V AC, 60Hz, for 3RT2 Contactor Size S0 Original Brand New

Overview

The Siemens 3RT2926-5AR61 is an essential replacement or spare part magnetic coil specifically designed for the Siemens SIRIUS 3RT2 series of power contactors, primarily in the Size S0 range. This AC operated coil ensures reliable and consistent switching performance for motor and load control applications in industrial automation and control panels. It is designed to operate seamlessly in systems requiring a control supply voltage of 400V AC at 50/60 Hz or 440V AC at 60 Hz.

Key Technical Specifications

• Product Number (MPN): 3RT2926-5AR61
• Brand: Siemens SIRIUS
• Product Type: Magnetic Coil (Solenoid Coil)
• Control Supply Voltage (Rated):
  • $400\text{ V AC at }50\text{ Hz}$
  • $400\text{ V AC at }60\text{ Hz}$
  • $440\text{ V AC at }60\text{ Hz}$
• Type of Voltage: AC (Alternating Current)
• Compatible Contactor Series: Siemens SIRIUS 3RT2
• Compatibility: Designed for 3-pole contactors including:
  • 3RT2325-.A (e.g., 3RT2325-1AR00)
  • 3RT2.26-.A (e.g., 3RT2026-1AR60, 3RT2026-1AR20)
  • 3RT2.27-.A (e.g., 3RT2027-1AR60)
  • 3RT2028-.A (e.g., 3RT2028-1AR60)
• Power Loss (Typical): $9.8\text{ VA}$ (Apparent Holding Power)
• Contactor Size: Primarily Size S0 (based on compatible models)
• Country of Origin: Germany

Benefit

• Optimal Compatibility: Guaranteed perfect fit and function as an original Siemens spare part for a wide range of Size S0 3RT2 contactors, simplifying maintenance and reducing downtime.
• High Reliability: Engineered to the high standards of the SIRIUS modular system, ensuring robust and consistent performance in demanding industrial environments.
• Dual Frequency Support: Operates reliably across both $50\text{ Hz}$ and $60\text{ Hz}$ networks, offering flexibility for global applications.
• Cost-Effective Maintenance: Extend the service life of your existing contactors by replacing only the essential coil component.

Function

The 3RT2926-5AR61 magnetic coil is the core component responsible for the electrical control of the power contactor. When the rated control voltage ($400/440\text{ V AC}$) is applied, the coil generates an electromagnetic field. This field pulls in the armature, which in turn closes the main power contacts, allowing current to flow to the connected load (such as a motor). De-energizing the coil releases the armature and opens the contacts, safely interrupting the circuit. It is the crucial link for remote and automated switching operations.