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- Description
- Download material
- Code map
- Contribute
- Competitive Models
- Manufacturer
- Send enquiry
- Vessels
- Spares
- Vendors
- Did you know
Description
Newer SX440 revision.
Did you know
- The Stamford SX440-N is a half-wave phase-controlled thyristor-type Automatic Voltage Regulator (AVR) that is part of the excitation system for brushless generators. It was eventually replaced by the AS440.
- The SX440 is an older, lower-power variant designed for smaller alternators (up to 63 kVA) compared to the SX460, which supports higher excitation current and wider input voltage. The MX341 and MX321 are higher-end options that utilize a Permanent Magnet Generator (PMG) for excitation power, offering isolation from nonlinear loads and reduced radio frequency interference.
- The SX440 is chosen for its ability to regulate generator voltage, maintain output within specified limits, and compensate for load, speed, temperature, and power factor. It also includes under-speed and sensing loss protection features to ensure reliable control.
| Model | Sensing Input Voltage | Continuous Output Current | Voltage Regulation |
|---|---|---|---|
| SX440-N | 190-264V ac (1 phase, 2 wire) | 2.7A dc | +/- 1% |
| AS440 | 190-264V ac (1 phase, 2 wire) | 4A dc | +/- 1% |
| MX341 | 190-264V ac (2 phase, 2 wire) | N/A (PMG excited) | +/- 1% |
Competitive Models
^ZVCX DSEA106
Original DSEA106 (pre-MKII, legacy service).
^ZVEF SE500
Higher-capacity analog AVR.
^ZVCU DSE0700 MKII
Pocket-size genset control.
^ZVBH R731
Next-generation digital AVR.
^ZVBB R438
Larger analog AVR with PMG input, common on bigger LSA frames.
Send enquiry
Send an enquiry to the manufacturer of ^ZVAT SX440-N. One broadcast per day.
Contribute or correct
Spotted a missing or incorrect entry? Let the maintainers know. Zulu Code is open under CC BY 4.0 — every correction strengthens the standard for the whole industry.
Code map
^Z V A T │ │ │ └── Model: SX440-N │ │ └───── Make: Stamford (Newage / Cummins Gen Tech) │ └──────── Equipment: Automatic Voltage Regulator └─────────── System: Automation Spares