Description
The Siemens SIRIUS 3RT2916-1BB00 is a varistor-based surge suppressor designed to protect contactor and relay coils from voltage transients and switching surges. Suitable for both AC (24-48V, 50/60Hz) and DC (24-70V) control circuits, this device effectively suppresses voltage spikes that can damage contactor coils and reduce equipment lifespan. The suppressor is specifically designed for use with SIRIUS 3RT2.1 power contactors and 3RH2 auxiliary contactors, featuring a simple snap-on installation that requires no additional wiring. By absorbing energy from voltage transients, it ensures reliable operation and extends the service life of connected switching devices.
Varistor-based surge suppressor for contactor coils Voltage range: 24-48V AC, 50/60Hz Voltage range: 24-70V DC Compatible with SIRIUS 3RT2.1 contactors Compatible with SIRIUS 3RH2 auxiliary contactors Protects against voltage spikes and transient overvoltages Easy snap-on installation Compact design for space-saving mounting
Warranty & After-Sales
Factory new units: 12 months warranty Technical support for installation and application
Delivery Time
Standard delivery: 3-5 working days Express shipping available upon request
Why Choose Our Store
Genuine Siemens electrical components Global supply network with competitive pricing Expertise in motor control and protection systems
Applications
Surge protection for contactor coils in control circuits Motor starter and control panel applications Relay and contactor longevity enhancement Industrial automation control systems Electrical noise suppression in switching devices





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