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All About the Stamford S4L1D-D41 Alternator

What is the Stamford S4L1D-D41 Alternator?

The S4L1D-D41 is from Stamford's highly efficient S4 series of alternators. The alternators in this range have all been optimised to meet customer demands with impressive power density ratings.

As with the other alternators in the range, the S4L1D-D41 contains the new thermal management system from Stamford which improves the thermal capabilities of the unit as well as its power density.

Where is the Stamford S4L1D-D41 currently manufactured?

As of January 2020, the S4L1D-D41 is currently made in Wuxi (China), Stamford (UK), Craiova (Romania) and Ahmednagar (India).

More information on where Stamford make their products can be found here.

What is the power rating of the Stamford S4L1D-D41 Alternator?

Running this alternator at 50 Hz will generate a maximum standby power output of 340 kVA and a maximum prime power output of 310 kVA. The voltage output range at 50 Hz is 380-440 volts.

Where can I find further information on the Stamford S4L1D-D41 Alternator?

As standard, this alternator ships with a self exciting excitation system. However, the option of a PMG excitation system is also available.

The material insulation class for this 4 pole alternator is H.

The ingress protection rating is IP 23.

How is the quality of the S4L1D-D41 Alternator assured?

The S4L1D-D41 alternator is manufactured to meet the ISO 9001 guidelines. Therefore the production procedures are continually monitored and maintained at a high standard.

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