^ZVAZ
AS480-N
Description
Newer AS480 revision.
Did you know
- The Stamford AS480-N is a half-wave phase-controlled Automatic Voltage Regulator (AVR) that is part of the excitation system for brushless generators. It is a standard fit for Stamford P0 and P1 series alternators.
- The AS480-N is a self-excited, analog AVR within the Stamford range, positioned as an upgrade to models like the SX460 and AS440 for certain alternators. It is distinct from the MX series (e.g., MX321, MX341) which are designed for Permanent Magnet Generator (PMG) excited alternators.
- The AS480-N's primary strength lies in its compatibility with the optional Excitation Boost System (EBS), which significantly enhances motor starting performance and provides sustained short-circuit current. This feature allows it to handle heavy loads without stalling, offering performance comparable to PMG systems but without the added complexity and cost.
| Model | Sensing & Power Input (VAC, 1 phase) | Continuous Output Current (A) | Voltage Regulation (%) | EBS Compatibility |
|---|---|---|---|---|
| AS480-N | 100-264 | 5 | +/- 1.0 | Yes |
| AS440 | 100-264 | 5 | +/- 1.0 | No |
| MX341 | 170-220 (3-phase) | N/A (PMG excited) | < +/- 1.0 | No (PMG system) |
Competitive Models
^ZVEF SE500
Higher-capacity analog AVR.
^ZVCX DSEA106
Original DSEA106 (pre-MKII, legacy service).
^ZVCB DSEA109 MKII
Higher-power standalone AVR with external voltage trim input.
^ZVBG R448
Common aftermarket replacement AVR.
^ZVBH R731
Next-generation digital AVR.
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Code map
^Z V A Z │ │ │ └── Model: AS480-N │ │ └───── Make: Stamford (Newage / Cummins Gen Tech) │ └──────── Equipment: Automatic Voltage Regulator └─────────── System: Automation Spares