Mersen's Surge-Trap Type 1 STXR series, with its compact design and line or load installation flexibility, is the perfect fit for branch panel and/or individual equipment protection. The one-piece device requires no assembly and can be used at the machine or the main panel to protect equipment from downtime and/or damage from power spikes and surges. Available in 120-600VAC models and a 200kA short-circuit current rating, these devices are ideal for use in ANSI/UL SPD installations such as AC distribution, power supplies, drive protection, fire alarms and control panels. The NEMA 4X enclosure is suitable for outdoor or indoor use. The mounting hub fits a 3/4" knockout and an optional surface mounting bracket is available. An LED indicator displays status (Good/Replace). Starting at $98.00, the STXR series is UL and CSA approved.