• IEC 60601-1: (2005) 3rd Edition-compliant
• The ST5540 complies with JIS, IEC, and UL standards governing medical- and general-use electrical devices
• ST5541: A low-cost solution that complies with standards governing general-use electrical devices
• Uninterrupted polarity switching function dramatically reduces cycle time
• Support for rated currents up to 20 A gives the instrument more than adequate capability for testing products designed to comply with new standards
• Touch panel features simple, interactive operation
• Communications functionality and external I/O support allow automatic testing on production lines
• 1-Year warranty

A single, Robust Solution for Leak Current Measurement
The ST5540 and ST5541 feature an improved measuring method and dramatically faster cycle times, thanks to their uninterrupted polarity switching. These new Leak Current Testers support rated currents of up to 20A, making them more than ideal for use with products built to new standards.

Item		ST5540	ST5541
Network	Network A
	Network B1
	Network B2
	Network C
	Network D
	Network E
	Network F
	Network G
Testing leakage current mode	Earth leakage current
	Touch current
	Patient auxiliary current
	Patient leakage current
	Total patient leakage current
	Free current
	Enclosure - Earth leakage current
	Enclosure - Enclosure leakage current
	Enclosure - Line leakage current
	Patient leakage current I
	Patient leakage current II
	Patient leakage current III
Major functions	Power on polarity switching function
	Rated current 20 A
	Function for checking for blown fuses
	Frequency band switching
	110% voltage output terminal (T3 terminal)
	S10, S12, S13, E terminal

For applications involving leak current measurement of medical-use electrical devices, use the ST5540.
The ST5540 does not include an isolation transformer (needed for measuring leak current for medical-use electrical devices).