Product: NXZ125/4A 4P Automatic Transfer Switch Color: 100A Available ratings: 100A, 250A, 300A Type: Dual power Automatic Transfer Switch for single three phase systems Keyswitches to improve conversion rates Key benefits Secure and controlled transfer between two power sources. Automatic switching ensures continuous power while the integrated keyswitch provides secure manual control and prevents unauthorized or accidental switching. Clear compatibility with single three phase installations. 4P design supports all three phases plus neutral for balanced and reliable transfer. Multiple current ratings for the right fit. Choose 100A, 250A, or 300A ratings to match load requirements without oversizing. Simplified operation and maintenance. Keyswitch operation makes intentional manual transfers faster and reduces the chance of operator error. Robust, applicationoriented design. Built for integration into electrical distribution systems where dependable source changeover is required. Important attributes Function: Dual power automatic transfer switch with manual keyswitch control and automatic transfer logic for switching between primary and secondary power sources. Pole configuration: 4P suitable for single three phase systems with neutral. Ratings: Available in 100A, 250A, 300A to suit a range of load capacities. Control: Keyswitch provides lockable manual selection and secure override of automatic operation. Performance: Designed to manage transfer sequences for continuous supply needs and to minimize interruption during source changeover. Construction: Engineered for electrical distribution environments; durable build suitable for panel or switchgear integration. Typical use scenarios Commercial building backup power: Automatically transfer building loads from utility to generator during an outage, with keyswitch control for maintenance or testing. Industrial equipment and machinery: Provide reliable source changeover for production lines or critical motors, allowing secure manual intervention when needed. Standby systems for small data centers or telecom closets: Maintain continuous power to sensitive equipment by switching between primary supply and backup generator. Compatibility and selection notes Intended for single three phase systems requiring a 4P transfer arrangement. Select the ampere rating that matches installed load and conductor capacity. Installation and wiring should be performed by a qualified electrician to ensure correct integration with existing distribution equipment and protective devices. This NXZ125/4A 4P Automatic Transfer Switch offers a straightforward solution for controlled, secure transfer between two power sources while providing keyswitch functionality to improve manual conversion operations.