Wheelock MPS non-coded manual pull stations are constructed of high-quality, die-cast metal for long-lasting performance and may be mounted on a single gang backbox.Available in either single or dual action configurations for indoor or outdoor use with SPST contacts and terminal strip connections. The normally open contact will close when the pull station is activated and is rated for 30 VDC @ 1 amp and/or 120 VAC @ 1 amp. The contacts are gold plated to avoid the risk of corrosion.The single-action explosion-proof model MPS-400X is UL Listed and Factory Mutual approved for use in Class I, Division I, Groups B, C and D; Class II, Groups E, F and G; and Class III hazardous environments. It also has a marine rating and is approved for NEMA-4X applications. MPS Pull Stations are NEMA-3R listed when mounted to the MPS-WP weatherproof back box.All models are painted red with raised white lettering and a locking mechanism to prevent unauthorized reset.