Discontinued AC power under frequency relays. No direct Murphy equivalent.
Similar to discontinued UFR500 but with 48 - 51 Hz or 325 - 400 Hz adjustment range.
3 phase AC overload (over current) relay, 110 or 240VAC auxiliary power supply. No Murphy equivalent.
Similar to discontinued OFR500 but with 49 - 52 Hz or 400 - 475 Hz adjustment range.
Sales Bulletin (ms5734)