Siemens EK 726 Series Wartungshandbuch PDF herunterladen (Seite 117)

OPTIONS

MICROMASTER

MICROMASTER Vector

MIDIMASTER Vector

SIEMENS DA 64 – 2002/2003

6/17 Version D

6.6 Recommended protection

We recommend slow-acting line fuses to protect the feeder cable. The rule of thumb "input current (max. continuous current) of

the drive inverter + ~30%" can be used to determine the rated fuse current for fuses, circuit-breakers, motor protection circuit-

breakers, bimetallic protective elements. When using motor protection circuit-breakers it must be ensured that the devices used

are certified for drive inverter operation. We recommend 3RU.... or 3RV.... devices or 3NA... fuses.

MICROMASTER, MICROMASTER Vector

Line supply voltage

Version

MM = MICROMASTER

MMV = MICROMASTER Vector

Recommen-

ded rated fuse

currents

Recommended

fuse

utilization category

gG/gL

Order No.

Recommended circuit-

breaker

Order No. (b)

1-ph. 230 V AC MM12, MMV12, MM25, MMV25, MM37, MMV37 10 3NA3803 5SX2 110 -6

MM55, MMV55, MM75, MMV75 16 3NA3805 5SX2 116 -6

MM110, MMV110, MM150, MMV150, 20 3NA3807 5SX2 120 -6

MM220, MMV220 20 3NA3810 5SX2 125 -6

MM300, MMV300 (a) 32 3NA3812 5SX2 132 -6

1-ph. 230 V AC,

3-ph. 230 V AC

MM12/2, MMV12/2, MM25/2, MMV25/2, MM37/2,

MMV37/2, MM55/2, MMV55/2, MM75/2, MMV75/2

10 3NA3803 5SX2 310 -6

MM110/2, MMV110/2, MM150/2, MMV150/2 16 3NA3805 5SX2 316 -6

MM220/2, MMV220/2 20 3NA3807 5SX2 320 -6

MM300/2, MMV300/2 (a) 25 3NA3810 5SX2 325 -6

Only 3-ph. 230V AC MM400/2, MMV400/2 32 3NA3812 5SX2 332 -6

3-ph. 380 V - 500 V

(c)

MM37/3, MMV37/3, MM55/3, MMV55/3, MM75/3,

MMV75/3, MM110/3, MMV110/3, MM150/3, MMV150/3,

10 3NA3803 5SX2 310 -6

MM220/3, MMV220/3, MM300/3, MMV300/3 16 3NA3805 5SX2 316 -6

MM400/3, MMV400/3, MM550/3, MMV550/3 20 3NA3807 5SX2 320 -6

MM750/3, MMV750/3 25 3NA3810 5SX2 325 -6

Information on the tables: "Recommended fusing for MICROMASTER & MIDIMASTER"

3NA... fuses are not UL certified,

5SX... circuit-breakers with characteristic type B from 6A to 50A & characteristic type C from 0.5A to 50A, are

certified for UL 1077 and CSA 22.2 No. 235 - M 89 and can be used as "supplementary protectors"

- not available

- additional data on 3NA... und 5SX2... fuses are provided in the Catalog for Installation Technology I 2.1 or in the NS

K Catalog

(a) MM(V)300 and MM(V)300/2 require an external reactor for 1-phase voltages (e.g. 4EM4807-8CB) and a 32A line

fuse.

(b) Characteristic type A (fast acting) = 5SX2 ... -5 > cable protection for control systems, limited semiconductor

protection

Characteristic type B (slow-acting) = 5SX2 ... -6 > cable protection for socket outlets

Characteristic type C (slow-acting) = 5SX2 ... -7 > general cable protection, suitable for motors

1 2 ... 112 113 114 115 116 117 118 119 120

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