POPULACE
Generator Automatic Voltage Regulator Stamford AVR SX460
Model: SX460
Compatible SX460 generator AVR at factory wholesale price. 100% bench-tested, 13-month warranty, in stock. Request wiring diagram, datasheet & quote.
| Warranty | 13 months |
|---|---|
| Place of Origin | Fujian, China |
| Brand Name | POPULACE |
| Model Number | SX460 |
| Overall Size | 175×150×65mm |
| Weight | 0.4kg |
| Certification | CE,ISO9001 |
| Technical Data | 1phase or 3 phase 220V |
| Capacitor Color | Blue Capacitor, Red for option |
| MOQ | 1 pc |
| Lead time | 2-3 days after payment (in stock), 3-7 days for production batches |
Applications
- Standby and prime diesel generator sets fitted with Stamford alternators in telecom, data-centre and hospital backup power
- Commercial and industrial gensets requiring stable output voltage under varying load
- Alternator rewinds and rebuilds where the original AVR is obsolete or damaged
Product Description
Generator Automatic Voltage Regulator Stamford AVR SX460
General Features
 | AVR SX460 SX460 is a half wave phase controlled thyristor type AVR and forms part of the excitation system for a brushless generator. Controls are limited to VOLTS, STABILITY and the factory-sealed UFRO jumper: this model has no droop adjustment, no droop CT input and no analogue input. For those functions the superseding AS440 is required. |
 | Features *jumper selectable120(95-132)VAC, 240(190-264)VAC, single phase 2wire * 50-60Hz nominal *Max 90VDC at 207VAC input * 15 Ω minimum * <±1% RMS with 4% engine governing * Voltage build-up: 4 V dc at the AVR terminals * +/-10% with 1k ohm 1 watt trimmer *<150kw |
| Product Name | Automatic Voltage Regulator 220 volt 1 Phase Generator AVR SX460 | |
| Sensing/Power input | Voltage | 120(95-132Vac)240(190-264Vac),1 phase 2 wire jumper selectable |
| Frequency | 50/60 Hz jumper selectable | |
| Output | Voltage | Max. 90 Vdc @ 207 Vac input |
| Current | Continuous 4A,Intermittent 6A for 10 seconds | |
| Voltage Regulation | < +/-1% (with 4% engine governing) | |
| Excitation current | Continuous 4 A dc; intermittent 6 A for 10 seconds | |
| Field circuit resistance | Minimum 15 Ω | |
| Thermal drift | 0.05 % per °C change in AVR ambient (measured after 10 minutes) | |
| Typical system response | AVR response 20 ms; field current to 90 % in 80 ms; machine volts to 97 % in 300 ms | |
| Under frequency protection | Set point 95 % Hz, factory set and semi-sealed, 50/60 Hz by push-on link; slope 170 % down to 30 Hz. Red LED lights as frequency falls just below nominal: 47 Hz on a 50 Hz machine, 57 Hz on a 60 Hz machine. | |
| Unit power dissipation | 10 W maximum | |
| Terminal links | Terminals 1 and 2 carry a shorting link if no hand trimmer is used (factory default); terminals 3 and 4 are linked only for special low voltage applications. Never earth a hand trimmer terminal — it can sit above earth potential. | |
| Controls | VOLTS: clockwise raises output voltage. STABILITY: prevents voltage hunting, clockwise increases the damping effect. UFRO: clockwise reduces the knee point. | |
| Stability setting method | On no load at nominal frequency, turn STABILITY anti-clockwise until the voltage just becomes unstable, then return it slightly clockwise — that position is optimum. Never leave it at the fully clockwise end. | |
| Environment | Vibration 20-100 Hz 50 mm/sec and 100 Hz-2 kHz 3.3 g; operating -40 to +70 °C; storage -55 to +80 °C; relative humidity 95 % up to 70 °C, non-condensing | |
| Interference protection | Suppression components filter sub-cycle transients from the voltage sensing loop; a low pass filter rejects distortion present on the mains waveform; the reference level detector prevents positive closure of the control devices during momentary overspeed. |
Connection Diagram
There are no reviews yet.
Be the first to review “Generator Automatic Voltage Regulator Stamford AVR SX460”
Your email address will not be published. Required fields are marked *
Related Products
Compatible generator parts & matching system accessories.
Technical Guides & Troubleshooting
Engineering diagnostics, terminal wiring diagrams, and parts replacement procedures.
Stamford SX460 vs MX341 vs AS480: Which AVR Does Your Alternator Really Need? (2026 Engineering Guide)
Selecting between Stamford SX460, MX341, and AS480 AVRs depends on your alternator frame, excitation source (Shunt, PMG, or EBS), and load profile. Here is the full engineering breakdown.
Read Guide → Engineering GuideGenerator AVR Not Producing Voltage: 5 Causes and How to Test Them
A generator that runs but produces no power is most often an excitation or AVR problem. Here are the five causes we see most in the field, the multimeter check for each, and when the regulator itself needs replacing.
Read Guide →FAQ
This POPULACE unit is a compatible replacement for the Stamford AVR SX460. Send a photo of your alternator nameplate (model, voltage, frequency) and our engineers confirm the match against SX460 before dispatch.
Yes. Output voltage, stability adjustment and protection functions are bench-tested on every unit, and the test record travels with your order.
Stamford AVR SX460: overall size 175×150×65mm, shipping weight approx. 0.4kg. Send your panel or packing constraints and we confirm fit.
Stamford AVR SX460 is covered by a 13 months factory warranty. Quality issues within the term are replaced or repaired at our cost.
Stamford AVR SX460 carries CE,ISO9001 certification from our ISO9001-certified Xiamen facility.
Yes. POPULACE Electronic Co., Ltd. manufactures generator parts in Xiamen, Fujian - factory visits are welcome.
Yes. Samples are available for testing; express freight (FedEx, DHL, UPS, TNT, Aramex) typically delivers within 3-7 days.
In-stock items ship 2-3 days after payment; larger batches are produced in 3-7 days. Sea, air or express shipping is arranged to your preference.
T/T, PayPal, Western Union, MoneyGram, Alibaba order link and RMB transfer are all supported.
Yes. Detailed terminal connection wiring diagrams and user manuals for SX460 are available upon request. Contact our technical support with your generator setup to receive the documentation.
The technical datasheet and complete specification sheet for SX460 can be provided directly by our sales team. Contact grace@genpart.cn or submit an inquiry to receive the PDF specification.
20 Years Experience for Genset Parts
POPULACE has 20 years of experience supplying generator parts worldwide — reliable, OEM-compatible, and built for continuous operation.
Get a Quote