Burden Resistor Chart
Magnelab, Inc.
Burden Resistor Chart for Split-Core Current Transformers.
An unburdened SCT will produce 0.333 V output at the rated current using the resistors shown below:
		SCT-0750 Series			SCT-2000 Series
		Rated Current	Resistor		Rated Current	Resistor
		amp	Ohms		amp	Ohms
		5	490		100	24.5
		10	245		200	12.3
		15	163		300	8.17
		20	123		400	6.13
		25	98.1		600	4.09
		30	81.7		800	3.06
		50	49.0		1000	2.45
		60	40.9		1200	2.04
		70	35.0		1500	1.63
		100	24.5
		150	16.3
		200	12.3
		SCT-1250 Series			SCT-3000 Series
		Rated Current	Resistor		Rated Current	Resistor
		amp	Ohms		amp	Ohms
		50	48.9		400	8.67
		70	34.9		600	5.78
		100	24.4		800	4.33
		150	16.3		1000	3.47
		200	12.2		1200	2.89
		250	9.78		1500	2.31
		300	8.15		2000	1.73
		400	6.11		2500	1.39
		600	4.07		3000	1.16