ABB ARP43S N 10A 120V DPDTP 8Pins Electrical Relay

The ABB ARP43S‑N is a 120 V AC coil, DPDT 8‑pin alternating relay designed for duplexing two loads in control circuits. Part of the ARP series (originating with ABB/SSAC and later offered by Littelfuse), it uses an 8‑pin cross‑wired DPDT contact arrangement to alternate conduction between two output circuits, enabling equal duty cycling in duplexing applications. The relay is specified for up to 10 A of load current, with common ratings cited as 10 A resistive at higher voltages (240 V AC) and about 7 A inductive at 120 V AC, depending on load type and waveform. A 120 V AC coil provides straightforward integration into standard control panels, and the device is designed for plug‑in sockets to simplify installation and replacement. Typical applications include automation tasks that require switching between two lines—such as signaling, interlocking, or motor‑control circuits—where alternating activation ensures balanced wear among contacts. The ARP43S‑N's compact 8‑pin package and cross‑wired duplexing capability make it a drop‑in choice for legacy ABB SSAC installations or modern Littelfuse deployments that need a proven, mid‑range current relay for 120 V AC control paths.