Line-side components - Recommended fuses

The fuses specified below are the recommended types for protecting the unit on the low-voltage distribution panel. If option L26 was selected for SINAMICS S150 with rated input currents <800 A, then the semiconductor protection is already integrated in the unit. For units of >800 A, this function is performed by the circuit breaker provided as standard.
In this case, a 3NA fuse can be used in the distribution board. If option L26 has not been selected for units <800 A, we strongly advise that 3NE fuses are used ¹⁾.

Catalog LV 10 contains additional information on the listed fuses.

Type rating at 400 V or 690 V		SINAMICS S150 converter	Cable protection fuse in systems with a fuse switch disconnector			Cable protection fuse (incl. semiconductor protection) in systems without fuse switch disconnector
At I_L, 50 Hz 400 V, 500 V or 690 V	At I_L, 60 Hz 460 V or 575 V			Rated current	Size according to DIN 43620‑1		Rated current	Size according to DIN 43620‑1
kW	hp	6SL3710-...	Article No.	A		Article No.	A
Line voltage 380 ... 480 V 3 AC
110	150	7LE32-1AA3	3NA3252	315	2	3NE1230-2	315	1
132	200	7LE32-6AA3	3NA3254	355	2	3NE1331-2	350	2
160	250	7LE33-1AA3	3NA3365	500	3	3NE1334-2	500	2
200	300	7LE33-8AA3	3NA3365	500	3	3NE1334-2	500	2
250	400	7LE35-0AA3	3NA3372	630	3	3NE1436-2	630	3
315	500	7LE36-1AA3	3NA3475	800	4	3NE1438-2	800	3
400	600	7LE37-5AA3	3NA3475	800	4	3NE1448-2	850	3
450	700	7LE38-4AA3	–	–	–	Circuit breaker included as standard
560	800	7LE41-0AA3	–	–	–	Circuit breaker included as standard
710	1000	7LE41-2AA3	–	–	–	Circuit breaker included as standard
800	1000	7LE41-4AA3	–	–	–	Circuit breaker included as standard
Line voltage 500 ... 690 V 3 AC
75	75	7LG28-5AA3	3NA3132-6	125	1	3NE1022-2	125	00
90	75	7LG31-0AA3	3NA3132-6	125	1	3NE1022-2	125	00
110	100	7LG31-2AA3	3NA3136-6	160	1	3NE1224-2	160	1
132	150	7LG31-5AA3	3NA3240-6	200	2	3NE1225-2	200	1
160	150	7LG31-8AA3	3NA3244-6	250	2	3NE1227-2	250	1
200	200	7LG32-2AA3	3NA3252-6	315	2	3NE1230-2	315	1
250	250	7LG32-6AA3	3NA3354-6	355	3	3NE1331-2	350	2
315	300	7LG33-3AA3	3NA3365-6	500	3	3NE1334-2	500	2
400	400	7LG34-1AA3	3NA3365-6	500	3	3NE1334-2	500	2
450	450	7LG34-7AA3	3NA3352-6	2 × 315	2	3NE1435-2	560	3
560	600	7LG35-8AA3	3NA3354-6	2 × 355	3	3NE1447-2	670	3
710	700	7LG37-4AA3	3NA3365-6	2 × 500	3	3NE1448-2	850	3
800	800	7LG38-1AA3	–	–	–	Circuit breaker included as standard
900	900	7LG38-8AA3	–	–	–	Circuit breaker included as standard
1000	1000	7LG41-0AA3	–	–	–	Circuit breaker included as standard
1200	1250	7LG41-3AA3	–	–	–	Circuit breaker included as standard

¹⁾ The double function fuses (3NE1.) with duty class gS for cable and semiconductor protection are recommended to protect the converter. These fuses are specially adapted to the requirements of the semiconductors in the input rectifier.

- Super fast

- Lower arc voltage

- Improved current limiting (lower let-through values).

Line-side components - Recommended fuses

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