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3NE1 SITOR double protection fuses allow the cable and semiconductor protection to be implemented with just one fuse. This results in significant cost savings and shorter assembly times.

An overview of the fuses required for the armature and field circuits is provided in the following table.

Fuse	Armature circuit				Field circuit
	< 900 A		в‰Ґ 900 A
	Two-quadrant operation	Four-quadrant operation	Two-quadrant operation	Four-quadrant operation
Phase fuse	Required	Required	–	–	Required
Arm fuse	–	–	Integrated in the unit	Integrated in the unit	–
DC fuse	–	Required	–	–	–

For technical specifications, engineering data as well as dimensional drawings for Siemens fuses, please refer to Catalog LV 10.1 "Low-Voltage Power Distribution and Electrical Installation Technology".

In order to ensure UL-compliant protection of units, it is essential that you use UL-listed or UL-recognized fuses.

Fuses for the field circuit

Recommended fuses for the field circuit

Rated DC current for converter unit	Max. field current	2 Siemens fuses		2 Bussmann fuses FWP 700V
		Article No.		Article No.
A	A	per unit	A	per unit	A
15	3	5SD420	16	FWP-5B	5
30	5	5SD420	16	FWP-5B	5
60 вЂ¦ 125	10	5SD420	16	FWP-15B	15
210 вЂ¦ 280	15	5SD440	25	FWP-20B	20
400 вЂ¦ 600	25	5SD440	25	FWP-30B	30
710 вЂ¦ 850	30	5SD480	30	FWP-35B	35
900 вЂ¦ 3000	40	3NE1802вЂ‘0¹⁾	40	FWP-50B	50
1500 вЂ¦ 3000 with option L85	85	3NE8021вЂ‘1¹⁾	100	FWP-100B	100

¹⁾ UL-recognized

Fuses for the armature circuit

Units, two-quadrant operation: 400 V, 575 V, 690 V, 830 V and 950 V

Phase fuses

Unit		3 phase fuses Siemens
Type	I/V	Article No.	I/V
	A/V	per unit	A/V
6RA8025-6DS22-0AA0	60/400	3NE1817-0	50/690
6RA8025-6GS22-0AA0	60/575	3NE1817-0	50/690
6RA8028-6DS22-0AA0	90/400	3NE1820-0	80/690
6RA8031-6DS22-0AA0	125/400	3NE1021-0	100/690
6RA8031-6GS22-0AA0	125/575	3NE1021-0	100/690
6RA8075-6DS22-0AA0	210/400	3NE3227	250/1000
6RA8075-6GS22-0AA0	210/575	3NE3227	250/1000
6RA8078-6DS22-0AA0	280/400	3NE3231	350/1000
6RA8081-6DS22-0AA0	400/400	3NE3233	450/1000
6RA8081-6GS22-0AA0	400/575	3NE3233	450/1000
6RA8085-6DS22-0AA0	600/400	3NE3336	630/1000
6RA8085-6GS22-0AA0	600/575	3NE3336	630/1000
6RA8087-6DS22-0AA0	850/400	3NE3338-8	800/800
6RA8087-6GS22-0AA0	800/575	3NE3338-8	800/800
6RA8086-6KS22-0AA0	720/690	3NE3337-8	710/900

Arm fuses

Note:
The arm fuses are included in the unit. No external semiconductor fuses are required.

Unit		Arm fuses Siemens
Type	I/V	Fuses	Article No.	I/V
	A/V		per unit	A/V
6RA8091-6DS22-0AA0	1200/400	6	3NE3338-8	800/800
6RA8090-6GS22-0AA0	1100/575	6	3NE3338-8	800/800
6RA8090-6KS22-0AA0	1000/690	6	3NE3337-8	710/900
6RA8088-6LS22-0AA0	950/830	6	3NE3337-8	710/900
6RA8093-4DS22-0AA0	1600/400	6	6RY1702-0BA02	1000/660
6RA8093-4GS22-0AA0	1600/575	6	6RY1702-0BA02	1000/660
6RA8093-4KS22-0AA0	1500/690	6	6RY1702-0BA03	1000/1000
6RA8093-4LS22-0AA0	1500/830	6	6RY1702-0BA03	1000/1000
6RA8095-4DS22-0AA0	2000/400	6	6RY1702-0BA01	1250/660
6RA8095-4GS22-0AA0	2000/575	6	6RY1702-0BA01	1250/660
6RA8095-4KS22-0AA0	2000/690	12	6RY1702-0BA04	630/1000
6RA8095-4LS22-0AA0	1900/830	12	6RY1702-0BA04	630/1000
6RA8096-4GS22-0AA0	2200/575	6	6RY1702-0BA05	1500/660
6RA8096-4MS22-0AA0	2200/950	12	3NC3438-6	800/1100
6RA8097-4KS22-0AA0	2600/690	12	3NC3341-6	1000/1000
6RA8097-4GS22-0AA0	2800/575	12	3NC3341-6	1000/1000
6RA8098-4DS22-0AA0	3000/400	12	3NC3341-6	1000/1000

Units, two-quadrant operation: 480 V

Phase fuses

Unit		3 phase fuses Siemens		3 phase fuses Bussmann		3 phase fuses Bussmann¹⁾
Type	I/V	Article No.	I/V	Article No.	I/V	Article No.	I/V
	A/V	per unit	A/V	per unit	A/V	per unit	A/V
6RA8025-6FS22-0AA0	60/480	3NE1817-0	50/690	170M1565	63/660	FWH-60B	60/500
6RA8028-6FS22-0AA0	90/480	3NE1820-0	80/690	170M1567	100/660	FWH-100B	100/500
6RA8031-6FS22-0AA0	125/480	3NE1021-0	100/690	170M1568	125/660	FWH-125B	125/500
6RA8075-6FS22-0AA0	210/480	3NE3227	250/1000	170M3166	250/660	FWH-225A	225/500
6RA8078-6FS22-0AA0	280/480	3NE3231	350/1000	170M3167	315/660	FWH-275A	275/500
6RA8082-6FS22-0AA0	450/480	3NE3233	450/1000	170M3170	450/660	FWH-450A	450/500
6RA8085-6FS22-0AA0	600/480	3NE3336	630/1000	170M4167	700/660	FWH-600A	600/500
6RA8087-6FS22-0AA0	850/480	3NE3338-8	800/800	170M5165	900/660	FWH-800A	800/500

¹⁾ FWH-... fuses are not mechanically compatible with 3NE or 170M fuses.

Arm fuses

Note:
The arm fuses are included in the unit. No external semiconductor fuses are required.

Unit		Arm fuses Siemens
Type	I/V	Fuses	Article No.	I/V
	A/V		per unit	A/V
6RA8091-6FS22-0AA0	1200/480	6	3NE3338-8	800/800

Units, four-quadrant operation: 400 V, 575 V, 690 V, 830 V and 950 V

Phase fuses, DC fuse

Unit		3 phase fuses Siemens		1 DC fuse Siemens
Type	I/V	Article No.	I/V	Article No.	I/V
	A/V	per unit	A/V	per unit	A/V
6RA8013-6DV62-0AA0	15/400	3NE1814-0	20/690	3NE1814-0	20/690
6RA8018-6DV62-0AA0	30/400	3NE8003-1	35/690	3NE4102	40/1000
6RA8025-6DV62-0AA0	60/400	3NE1817-0	50/690	3NE4120	80/1000
6RA8025-6GV62-0AA0	60/575	3NE1817-0	50/690	3NE4120	80/1000
6RA8028-6DV62-0AA0	90/400	3NE1820-0	80/690	3NE4122	125/1000
6RA8031-6DV62-0AA0	125/400	3NE1021-0	100/690	3NE4124	160/1000
6RA8031-6GV62-0AA0	125/575	3NE1021-0	100/690	3NE4124	160/1000
6RA8075-6DV62-0AA0	210/400	3NE3227	250/1000	3NE3227	250/1000
6RA8075-6GV62-0AA0	210/575	3NE3227	250/1000	3NE3227	250/1000
6RA8078-6DV62-0AA0	280/400	3NE3231	350/1000	3NE3231	350/1000
6RA8081-6DV62-0AA0	400/400	3NE3233	450/1000	3NE3233	450/1000
6RA8081-6GV62-0AA0	400/575	3NE3233	450/1000	3NE3233	450/1000
6RA8085-6DV62-0AA0	600/400	3NE3336	630/1000	3NE3336	630/1000
6RA8085-6GV62-0AA0	600/575	3NE3336	630/1000	3NE3336	630/1000
6RA8087-6DV62-0AA0	850/400	3NE3338-8	800/800	3NE3334-0B¹⁾	500/1000
6RA8087-6GV62-0AA0	850/575	3NE3338-8	800/800	3NE3334-0B¹⁾	500/1000
6RA8086-6KV62-0AA0	760/690	3NE3337-8	710/900	3NE3334-0B¹⁾	500/1000

¹⁾Two fuses connected in parallel.

Arm fuses

Note:
The arm fuses are included in the unit. No external semiconductor fuses are required.

Unit		Arm fuses Siemens
Type	I/V	Fuses	Article No.	I/V
	A/V		per unit	A/V
6RA8091-6DV62-0AA0	1200/400	6	3NE3338-8	800/800
6RA8090-6GV62-0AA0	1100/575	6	3NE3338-8	800/800
6RA8090-6KV62-0AA0	1000/690	6	3NE3337-8	710/900
6RA8088-6LV62-0AA0	950/830	6	3NE3337-8	710/900
6RA8093-4DV62-0AA0	1600/400	6	6RY1702-0BA02	1000/660
6RA8093-4GV62-0AA0	1600/575	6	6RY1702-0BA02	1000/660
6RA8093-4KV62-0AA0	1500/690	6	6RY1702-0BA03	1000/1000
6RA8093-4LV62-0AA0	1500/830	6	6RY1702-0BA03	1000/1000
6RA8095-4DV62-0AA0	2000/400	6	6RY1702-0BA01	1250/660
6RA8095-4GV62-0AA0	2000/575	6	6RY1702-0BA01	1250/660
6RA8095-4KV62-0AA0	2000/690	12	6RY1702-0BA04	630/1000
6RA8095-4LV62-0AA0	1900/830	12	6RY1702-0BA04	630/1000
6RA8096-4GV62-0AA0	2200/575	6	6RY1702-0BA05	1500/660
6RA8096-4MV62-0AA0	2200/950	12	3NC3438-6	800/1100
6RA8097-4KV62-0AA0	2600/690	12	3NC3341-6	1000/1000
6RA8097-4GV62-0AA0	2800/575	12	3NC3341-6	1000/1000
6RA8098-4DV62-0AA0	3000/400	12	3NC3341-6	1000/1000

Units, four-quadrant operation: 480 V

Phase fuses

Unit		3 phase fuses Siemens		3 phase fuses Bussmann		3 phase fuses Bussmann²⁾
Type	I/V	Article No.	I/V	Article No.	I/V	Article No.	I/V
	A/V	per unit	A/V	per unit	A/V	per unit	A/V
6RA8013-6FV62-0AA0	15/480	3NE1814-0	20/690	170M1562	32/660	FWH-35B	35/500
6RA8018-6FV62-0AA0	30/480	3NE1815-0	25/690	170M1562	32/660	FWH-35B	35/500
6RA8025-6FV62-0AA0	60/480	3NE1817-0	50/690	170M1565	63/660	FWH-60B	60/500
6RA8028-6FV62-0AA0	90/480	3NE1820-0	80/690	170M1567	100/660	FWH-100B	100/500
6RA8031-6FV62-0AA0	125/480	3NE1021-0	100/690	170M1568	125/660	FWH-125B	125/500
6RA8075-6FV62-0AA0	210/480	3NE3227	250/1000	170M3166	250/660	FWH-225A	225/500
6RA8078-6FV62-0AA0	280/480	3NE3231	350/1000	170M3167	315/660	FWH-275A	275/500
6RA8082-6FV62-0AA0	450/480	3NE3233	450/1000	170M3170	450/660	FWH-450A	450/500
6RA8085-6FV62-0AA0	600/480	3NE3336	630/1000	170M4167	700/660	FWH-600A	600/500
6RA8087-6FV62-0AA0	850/480	3NE3338-8	800/800	170M5165	900/660	FWH-800A	800/500

²⁾FWH-... and FWP-... fuses are not mechanically compatible with 3NE or 170M fuses.

DC fuse

		1 DC fuse Siemens		1 DC fuse Bussmann²⁾
Type	I/V	Article No.	I/V	Article No.	I/V
	A/V	per unit	A/V	per unit	A/V
6RA8013-6FV62-0AA0	15/480	3NE1814-0	20/690	FWP-35B	35/660
6RA8018-6FV62-0AA0	30/480	3NE4102	40/1000	FWP-35B	35/660
6RA8025-6FV62-0AA0	60/480	3NE4120	80/1000	FWP-70B	70/660
6RA8028-6FV62-0AA0	90/480	3NE4122	125/1000	FWP-125A	125/660
6RA8031-6FV62-0AA0	125/480	3NE4124	160/1000	FWP-150A	150/660
6RA8075-6FV62-0AA0	210/480	3NE3227	250/1000	FWP-250A	250/660
6RA8078-6FV62-0AA0	280/480	3NE3231	350/1000	FWP-350A	350/660
6RA8082-6FV62-0AA0	450/480	3NE3334-0B	500/1000	FWP-500A	500/660
6RA8085-6FV62-0AA0	600/480	3NE3336	630/1000	FWP-700A	700/660
6RA8087-6FV62-0AA0	850/480	3NE3334-0B¹⁾	500/1000	FWP-1000A	1000/660

¹⁾Two fuses connected in parallel.

²⁾FWH-... and FWP-... fuses are not mechanically compatible with 3NE or 170M fuses.

Arm fuses

Note:
The arm fuses are included in the unit. No external semiconductor fuses are required.

Unit		Arm fuses Siemens
Type	I/V	Fuses	Article No.	I/V
	A/V		per unit	A/V
6RA8091-6FV62-0AA0	1200/480	6	3NE3338-8	800/800

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