Multi-Stage Alternator
The MODEL 442 Multi-Stage Alternator, SKU 442-240, provides reliable control for multi-motor/pump systems. Its selectable modes support single, duplex, triplex, and quadraplex configurations, ensuring operational flexibility across diverse applications. The unit features power loss memory, retaining the operational sequence during power interruptions to maintain system integrity and minimize downtime. With an expected relay life of 50 million mechanical operations and 100,000 electrical operations at rated load, it offers sustained performance and durability. Operating within a -20° to +140° F temperature range and tolerating 0-97% humidity without condensation, this alternator is designed for demanding industrial environments. Its 240VAC input and 5A output contact rating facilitate straightforward integration into various control panels, providing a robust solution for sequencing operations.
4Stage Alt W/Stop
Specifications
| Input Voltage | 240VAC +/- 10% 50/60Hz |
|---|---|
| Power Consumption | 6.0 watts |
| Transient Protection | 2500 VRMS for 10ms |
| Delay Between Relay Operations | 5 seconds |
| Output Contact Rating | SPST 5A at 240VAC or 5A at 30VDC resistive |
| Input Contact Requirement | 0.001 amp at 12VDC |
| Expected Relay Life, Mechanical | 50 million operations |
| Expected Relay Life, Electrical | 100,000 ops at rated load |
| Operating Temperature | -20° to +140° F |
| Humidity Tolerance | 0-97% w/o condensation |
| Enclosure Material | ABS plastic |
| Selectable Modes | Single Motor/Pump, Two Motor/Pump (duplex), Three Motor/Pump (triplex), Four Motor/Pump (quadraplex) |
| Power Loss Memory | Unit remembers which motor/pump is next during power loss |
| Operation Mode | Sequence-On, Simultaneous-Off |
| Warranty | One year from date of manufacture |





