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Description
Larger-frame AVR (service part).
Did you know
- The Stamford AS540 Automatic Voltage Regulator is an analog, 2-phase sensing, self-excited AVR. It is provided as a standard component with Stamford S0 and S1 alternators.
- The AS540 is part of Stamford's AS series of analog AVRs, which also includes the AS440 and AS480. It sits alongside other analog series like the SX (e.g., SX460, SX440) and MX (e.g., MX341, MX321) series, as well as digital AVRs like the DM710 and DM730.
- The AS540 is specifically designed for high-speed diesel generator sets (1500/1800 rpm) and is optimized for fast governor response. It also incorporates an interface for an optional auxiliary winding, which can improve motor starting performance and sustain short-circuit current.
| Model | Excitation Type | Sensing | Voltage Regulation | Power Output Current (Continuous) | Designed For |
|---|---|---|---|---|---|
| AS540 | Self-Excited or Auxiliary Winding | 2-phase | Analogue | 4A | High-speed diesel sets (1500/1800 rpm), Stamford S0 and S1 alternators |
| SX460 | Self-Excited | 1-phase | +/- 1.5% | 4A | General purpose, land-based prime power, rental fleets, telecom shelters, Stamford BCI164, BCI184, UC224 and UC274 series alternators |
| AS440 | Self-Excited | 1-phase | +/- 1.0% | 4A | Compact, lower-cost alternative for 10–100 kVA units, light commercial backup (retail, offices) |
| MX341 | PMG-Excited | 3-phase | Analogue | Not specified | High-end option, marine-grade thermal stability, Class H insulation, Stamford P7 alternators, also available on UC22, UC27, HC4, S4, HC5, S5, HC6 and S6 alternators |
Competitive Models
^ZVCX DSEA106
Original DSEA106 (pre-MKII, legacy service).
^ZVEF SE500
Higher-capacity analog AVR.
^ZVCU DSE0700 MKII
Pocket-size genset control.
^ZVCT DSE8510 MKII
Legacy power management (service).
^ZVBB R438
Larger analog AVR with PMG input, common on bigger LSA frames.
Send enquiry
Send an enquiry to the manufacturer of ^ZVAM AS540. One broadcast per day.
Contribute or correct
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Code map
^Z V A M │ │ │ └── Model: AS540 │ │ └───── Make: Stamford (Newage / Cummins Gen Tech) │ └──────── Equipment: Automatic Voltage Regulator └─────────── System: Automation Spares