Siemens 3RB Solid State Overload Relay 1NO + 1NC, 3 → 12 A F.L.C, 12 A Contact Rating, 5.5 kW, 3P, SIRIUS

Keep your motor running with this solid state overload relay from Siemens. When it's in place, you get peace of mind that your equipment is safe from damage caused by overcurrent, phase failure or imbalance. Two auxiliary contacts let you remotely disconnect the contactor and send a message to operators and control systems when it has tripped. This reliable component has no moving parts, so offers you a long service life in applications ranging from material handling to chemical processing.

• Wide operating temperature range between -25°C and +60°C makes it suitable for use in harsh industrial environments
• Contact voltage rating of 690V AC means you can trust it to protect high-powered motors
• Screw terminals allow you to wire it in quickly and securely

The relay offers a choice of automatic or manual reset, depending on your setup. This feature enables you to get back up and running again quickly once the fault that caused the unit to trip has been located and rectified.

Electronic Overload Relays

The 3RB2 range of Solid State Electronic overloads can be connected directly to Siemens SIRIUS contactors to provide accurate motor overload protection with enhanced single phase sensitivity,Application: Protection of 3 phase AC motors in sinusoidal 50/60Hz network. These relays are not suitable for the protection of single phase or DC loads,Select according to motor full load current and contactor frame size e,g. S00