Siemens 3RT2916-1BE00 SIRIUS Varistor Surge Suppressor 240-400V AC for 3RT2.1 & 3RH2 Contactors, S00 Original Brand New

Overview

The Siemens 3RT2916-1BE00 is a high-performance varistor surge suppressor from the SIRIUS modular system, specifically engineered to provide reliable overvoltage protection for your control circuits. This essential accessory is designed to clip onto Size S00 devices, including 3RT2.1 power contactors and 3RH2 auxiliary contactors and contactor relays. Operating across a wide voltage range of 240-400 V AC at 50/60 Hz, the 3RT2916-1BE00 effectively absorbs voltage spikes, enhancing the lifespan and reliability of your industrial controls.

Key Benefit

• Maximum Equipment Protection: Utilizes reliable varistor technology to absorb transient voltage peaks, shielding sensitive contactor coils from damage and premature failure.
• Wide Application Range: Flexible operation across the common European/Global voltage range of 240-400 V AC (50 Hz and 60 Hz) systems.
• Enhanced System Reliability: By mitigating coil overvoltages, the suppressor prevents unintentional contactor opening and closing, ensuring stable and reliable control operation.
• Simple Installation: Features a clip-on design for quick and easy front-side mounting to the S00 contactors without requiring additional tools or wiring.
• Part of the SIRIUS System: Guarantees seamless compatibility and integration with the world-renowned Siemens SIRIUS modular control components.

Function and Operation

The 3RT2916-1BE00 varistor acts as a voltage-dependent resistor. When a dangerous voltage spike (surge) occurs in the control circuit (often caused by switching off inductive loads), the varistor’s resistance drops sharply, diverting the excess energy and clamping the voltage to a safe level. This protective action is crucial for maintaining the operational integrity of the contactor coils and associated control electronics.

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