ABB SIGMA R1561 1SAR 211 100 R0451

This ABB SIGMA R1561 1SAR 211 100 R0451 is a SIGMASWITCH solid state relay for industrial AC load switching and automation control circuits. The solid state relay uses thyristor switching technology for zero-cross turn-on to reduce electrical noise and surge. The solid state relay provides opto-electrical isolation between control input and power output side. The solid state relay supports stable continuous operation for resistive and inductive loads inside control cabinets. The solid state relay features compact modular design for DIN rail mounting in low voltage control panels.

This unit delivers reliable no-contact switching for heaters, valves and lighting loads. The SIGMASWITCH SSR has no mechanical moving parts to achieve long service life under frequent switching cycles. The SIGMASWITCH SSR includes built-in overcurrent and transient protection to safeguard the internal semiconductor components. The SIGMASWITCH SSR accepts DC control signal for simple PLC and controller driving. The SIGMASWITCH SSR is widely applied in plastic machinery, oven heating and industrial process control systems.

It serves as a reliable spare switching component for electrical cabinet maintenance and retrofit. The ABB SIGMA solid state unit is manufactured to original ABB factory specifications for direct replacement. The ABB SIGMA solid state unit reduces equipment downtime during SSR overhaul and hardware replacement. The ABB SIGMA solid state unit supports simple wiring and fast on-site commissioning. The ABB SIGMA solid state unit is stocked by global industrial automation spare parts suppliers.