Isolation Transformers and Autotransformers, Step Up, Step Down

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Type	Voltage - Primary	Voltage - Secondary	1st Connector	2nd Connector

170D TRANSFORMR AUTO 115-230VAC 500VA Hammond Manufacturing	571 In Stock	1 : $150.89000 Bulk	170	Bulk	Active	Autotransformer (Non-Isolated)	115V, 230V	115V, 230V	Wire Leads	Wire Leads
171B TRANSFM ISOL 115 TO 115VAC 200VA Hammond Manufacturing	48 In Stock	1 : $199.08000 Bulk	171	Bulk	Active	Isolation	115V	115V	NEMA 5-15P	NEMA 5-15R
171E TRANSFM ISOL 115 TO 115VAC 500VA Hammond Manufacturing	49 In Stock	1 : $274.77000 Bulk	171	Bulk	Active	Isolation	115V	115V	NEMA 5-15P	NEMA 5-15R
176F TRANSFORMER AUTO STEP UP/PLG IN Hammond Manufacturing	31 In Stock	1 : $332.99000 Box	176	Box	Active	Autotransformer (Non-Isolated)	115V	230V	NEMA 5-15P	NEMA 6-15R
176G TRANSFORMER AUTO STEP UP/PLG Hammond Manufacturing	61 In Stock	1 : $416.26000 Box	176	Box	Active	Autotransformer (Non-Isolated)	115V	230V	NEMA 5-15P	NEMA 6-15R
170JE TRANSFORMER AUTO 115-230VAC 2KVA Hammond Manufacturing	26 In Stock	1 : $366.75000 Bulk	170	Bulk	Active	Autotransformer (Non-Isolated)	115V, 230V	115V, 230V	Wire Leads	Wire Leads
MD-1000-U MED GRADE ENC ISOLATION XFORMR Triad Magnetics	39 In Stock	1 : $370.28000 Bulk	MD	Bulk	Active	Isolation, Medical Grade	120V	120V	NEMA 5-15P	NEMA 5-15R (2)
MD-2000-U MED GRADE ENC ISOLATION XFORMR Triad Magnetics	62 In Stock	1 : $669.11000 Bulk	MD	Bulk	Active	Isolation, Medical Grade	120V	120V	NEMA 5-20P	NEMA 5-20R (2)
N-51X TRANSFORMER ISOL Triad Magnetics	101 In Stock	1 : $27.14000 Box	N	Box	Active	Isolation	115V	115V	Wire Leads	Wire Leads
N-2X AUTOTRANSFORMER NON-ISOL 100 VA Triad Magnetics	170 In Stock	1 : $33.89000 Box	N	Box	Active	Autotransformer (Non-Isolated)	230V	115V	Wire Leads	Wire Leads
480:277-250VA-L XFRMR 480/277V 250VA STEP-DOWN Thomas Research Products	104 In Stock	1 : $61.32000 Box	-	Box	Active	Autotransformer (Non-Isolated)	347V, 480V	200V, 277V	Wire Leads	Wire Leads
120-0F XFRMR AUTO 115/230V 200VA Signal Transformer	372 In Stock	1 : $56.29000 Box	0F	Box	Active	Autotransformer (Non-Isolated)	115V, 230V	115V, 230V	Wire Leads	Wire Leads
MD-250-U TRANSFORMER ISOLATION MEDICAL Triad Magnetics	49 In Stock	1 : $231.79000 Bulk	MD	Bulk	Active	Isolation, Medical Grade	120V	120V	NEMA 5-15P	NEMA 5-15R (2)
MD-500-U MED GRADE ENC ISOLATION XFORMR Triad Magnetics	31 In Stock	1 : $255.53000 Bulk	MD	Bulk	Active	Isolation, Medical Grade	120V	120V	NEMA 5-15P	NEMA 5-15R (2)
SU-1/2 XFRMR ISO PWR 1/2KVA 1.15/2.3A Signal Transformer	37 In Stock	1 : $328.66000 Box	SU	Box	Active	Isolation	104V, 110V, 120V, 208V, 220V, 230V, 240V	208V, 220V, 240V, 416V, 440V, 460V, 480V	Screw Terminal	Screw Terminal
N-59MG TRANSFORMER ISOL Triad Magnetics	28 In Stock	1 : $385.57000 Box	N	Box	Active	Isolation	115V	115V	NEMA 5-15P	NEMA 5-15R
N-500MG AUTOTRANSFORMER NON-ISOL 500 VA Triad Magnetics	34 In Stock	1 : $144.79000 Box	N	Box	Active	Autotransformer (Non-Isolated)	115V	230V	NEMA 5-15P	NEMA 6-15P
480:347:277-125VA-IC XFRMR 347/277V 125VA STEP-DOWN Thomas Research Products	472 In Stock	1 : $61.82000 Box	ATX	Box	Discontinued at Digi-Key	Autotransformer (Non-Isolated)	347V, 480V	277V	Wire Leads	Wire Leads
XFC215-347/480-277 TRANSFORMER ISO 347/480V 215VA ERP Power, LLC	123 In Stock	1 : $53.90000 Box	XFC	Box	Obsolete	Autotransformer (Non-Isolated)	347V, 480V	277V	Wire Leads	Wire Leads
298DT TRANSFORMER STEP UP/PLUG IN Hammond Manufacturing	10 In Stock	1 : $474.16000 Box	298	Box	Active	Isolation	120V	240V	NEMA 5-15P	NEMA 6-15R (2)
171G TRANSFORMER PLUG & RECEPTACLE Hammond Manufacturing	19 In Stock	1 : $584.40000 Box	171	Box	Active	Isolation	115V	115V	NEMA 5-15P	NEMA 5-15R
298GT TOROID ISOLATION TRANS 1500VA Hammond Manufacturing	22 In Stock	1 : $820.56000 Bulk	298	Bulk	Active	Isolation	120V	240V	NEMA 5-15P	NEMA 6-15R (2)
170 TRANSFORMER AUTO 115-230VAC 50VA Hammond Manufacturing	48 In Stock	1 : $61.50000 Bulk	EB	Bulk	Active	Autotransformer (Non-Isolated)	115V, 230V	115V, 230V	Wire Leads	Wire Leads
VT57A TRANSFORMER POTENTIAL 480/120 Hammond Manufacturing	11 In Stock	1 : $103.75000 Box	VT	Box	Active	Isolation	480V	120V	Screw Terminal	Screw Terminal
176A TRANSFORMER AUTO STEP UP/PLG Hammond Manufacturing	9 In Stock	1 : $110.82000 Box	176	Box	Active	Autotransformer (Non-Isolated)	115V	230V	NEMA 5-15P	NEMA 6-15R

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Products in this family are used in conjunction with AC utility power, for safety or functional reasons. Isolation transformers are used to transfer electrical power without the use of a galvanic electrical connection, and are commonly used in repair or product development environments to mitigate shock hazards. Autotransformers are used for scaling the voltage of an available source up or down to meet a functional requirement when isolation between input and output is not required.