Back to top

Fuses - Operation in CE Regions

Valid for EN60204 region.

Power Supply

Device Fuse class Voltage rating /
Interrupting rating
Max.
Ampere rating
Example class gRL
SIBA
AKD-x00306 gRL, gL 500VAC / 200kArms 10A (Time-Delay) 10A gRL(gS) 600VAC/200kA 10x38mm
AKD-x00606 gRL, gL 500VAC / 200kArms 16A (Time-Delay) 16A gRL(gS) 600VAC/200kA 10x38mm
AKD-x01206 gRL, gL 500VAC / 200kArms 16A (Time-Delay) 16A gRL(gS) 600VAC/200kA 10x38mm
AKD-x02406 gRL, gL 500VAC / 200kArms 30A (Time-Delay) 30A gRL(gS) 600VAC/200kA 10x38mm
AKD-x00307 gRL, gL 500VAC / 200kArms 6A (Time-Delay) 6A gRL(gS) 600VAC/200kA 10x38mm
AKD-x00607 gRL, gL 500VAC / 200kArms 10A (Time-Delay) 10A gRL(gS) 600VAC/200kA 10x38mm
AKD-x01207 gRL, gL 500VAC / 200kArms 16A (Time-Delay) 16A gRL(gS) 600VAC/200kA 10x38mm
AKD-x02407 gRL, gL 500VAC / 200kArms 30A (Time-Delay) 30A gRL(gS) 600VAC/200kA 10x38mm
S303 gS, gG 400VAC / 200kArms 6A (Time-Delay) 6A gRL(gS) 600VAC/200kA 10x38mm
S306 gS, gG 400VAC / 200kArms 10A (Time-Delay) 10A gRL(gS) 600VAC/200kA 10x38mm
S310 gS, gG 400VAC / 200kArms 10A (Time-Delay) 10A gRL(gS) 600VAC/200kA 10x38mm
S341 gS, gG 500VAC / 200kArms 6A (Time-Delay) 6A gRL(gS) 600VAC/200kA 10x38mm
S343 gS, gG 500VAC / 200kArms 6A (Time-Delay) 6A gRL(gS) 600VAC/200kA 10x38mm
S346 gS, gG 500VAC / 200kArms 10A (Time-Delay) 10A gRL(gS) 600VAC/200kA 10x38mm
S403M gS, gG 400VAC / 200kArms 16A (Time-Delay) 16A gRL(gS) 600VAC/200kA 10x38mm
S406M gS, gG 400VAC / 200kArms 16A (Time-Delay) 16A gRL(gS) 600VAC/200kA 10x38mm
S443M gS, gG 500VAC / 200kArms 16A (Time-Delay) 16A gRL(gS) 600VAC/200kA 10x38mm
S446M gS, gG 500VAC / 200kArms 16A (Time-Delay) 16A gRL(gS) 600VAC/200kA 10x38mm
S601 gS, gG 500VAC / 200kArms 6A (Time-Delay) 6A gRL(gS) 600VAC/200kA 10x38mm
S603 gS, gG 500VAC / 200kArms 6A (Time-Delay) 6A gRL(gS) 600VAC/200kA 10x38mm
S606 gS, gG 500VAC / 200kArms 10A (Time-Delay) 10A gRL(gS) 600VAC/200kA 10x38mm
S610 gS, gG 500VAC / 200kArms 10A (Time-Delay) 10A gRL(gS) 600VAC/200kA 10x38mm
S614 gS, gG 500VAC / 200kArms 20A (Time-Delay) 20A gRL(gS) 600VAC/200kA 10x38mm
S620 gS, gG 500VAC / 200kArms 20A (Time-Delay) 20A gRL(gS) 600VAC/200kA 10x38mm
S640 gS, gG 500VAC / 200kArms 50A (Time-Delay) 50A gRL(gS) 600VAC/200kA 10x38mm
S670 gS, gG 500VAC / 200kArms 80A (Time-Delay) 80A gRL(gS) 600VAC/200kA 10x38mm
S701 gS, gG 500VAC / 200kArms 6A (Time-Delay) 6A gRL(gS) 600VAC/200kA 10x38mm
S703 gS, gG 500VAC / 200kArms 6A (Time-Delay) 6A gRL(gS) 600VAC/200kA 10x38mm
S706 gS, gG 500VAC / 200kArms 10A (Time-Delay) 10A gRL(gS) 600VAC/200kA 10x38mm
S712 gS, gG 500VAC / 200kArms 16A (Time-Delay) 16A gRL(gS) 600VAC/200kA 10x38mm
S724 gS, gG 500VAC / 200kArms 30A (Time-Delay) 30A gRL(gS) 600VAC/200kA 10x38mm
S748 gS, gG 500VAC / 200kArms 60A (Time-Delay) 60A gRL(gS) 600VAC/200kA 10x38mm
S772 gS, gG 500VAC / 200kArms 80A (Time-Delay) 80A gRL(gS) 600VAC/200kA 10x38mm

Fuse Type

In Europe you must use fuses of the standardized classes gS (device and line protection) or gG (general protection) according to the supply voltage with voltage ratings of 400VAC or 500VAC.

Fuse Holder

in addition to the standard fuse blocks there are finger safe fuse holder according to IEC 60529.

Examples:
Siba: ZS modules, fuse size 10x38mm, 0 to 30A, 3 poles: 51 063 04.3

24V Supply

The description below delivers just examples for 24V fuse applications. It shows some possible applications only.

The required current values and the allowed wire cross sections for 24Vdc supply are described in the servo amplifier's instructions manuals. The 24V supply inputs are secures internally with 4A fuses. Therefore the external fuses only protect the lines.

Fuses

Micro fuse 5x20mm
Fuse holders integrated to series terminal blocks (35 mm standard rail),
e.g. from company Phoenix Contact: 4ST-HESI (5x20)

Automatic Circuit Brakers

For 35mm standard rail, e.g. from company ABB: S201-B... series
the single phase variant only is approved for min. 12Vdc to max. 60Vdc!

Important: observe the manufacturer's application notes sales information!!!
If switching power supplies are used for the 24V supply, you must consider, that these power supplies with short circuit limitation may be react as fast to a short circuit (typical <100ms), that fuses and automatic circuit brakers may not react and therefore a selectively protection isn't ensured any more.

ABB delivers special automatic circuit brakers for 60Vdc according to UL489 for Branch Circuit Protection:
Families S201 DC-k and S201 DC-Z with or without integrated auxiliary contact. These automatic circuit brakers for Branch Circuit Protection are developed especially for switching power supplies with short circuit limitation for selectively protection.

Over current protection

Electronic over current protection devices for 24Vdc supply voltage are developed especially for selectively protection for use with switching power supplies with short circuit limitation.
Examples are:
Electronic over current protection ESX10-T from company E-T-A
and the SITOP-select series of SIEMENS AG.

Brake Resistor

Minimum wire cross section of the connection between servo amplifier, fuse and external brake resistor must be ensured, see table below:

Rated voltage
mains supply
Voltage rating
of the DC fuse
Ampere Rating of the DC Fuse
S303 - S310 S341 - S346 S403M - S406M S443M - S446M S601 - S603 S606 - S620 S640 S670 S701 - S712 S724 S748 S772
110/115V min. DC 250VDC 6A - 6A - - - - - 10A 15A - -
230V min. DC 250VDC 6A 6A 6A 6A 6A 10A 16A 20A 20A 30A/32A 100A 100A
400V min. DC 440VDC - 6A - 6A 6A 10A 16A 20A 40A 50A 100A 100A
480V 600VDC – 1000VDC - 6A - 6A 6A 10A 16A 20A 40A 50A 100A 100A
cross section - 1.5mm2 1.5mm2 1.5mm2 1.5mm2 1.5mm2 1.5-4mm2 10mm2 10mm2 1.5-4mm2 1.5-4mm2 35mm2 35mm2

Fuse type

  • with VBUSBAL 0, 1, 2 (110V - 400V):
    e.g. fuse type class gRL (gS) from Siba, Size 22x58mm AC 690/700V and DC 440V, 30kA
  • with VBUSBAL 2 and 3 (400 - 480V):
    e.g. fuse type class aR from Siba; Size 14x51mm DC 700V, 30/50kA

The fuses do not protect the brake resistor from thermal overload. this supervision is done by the amplifier's software, if the parameterizing is correct. The fuses shall protect from short circuit and earth short circuit!

Fuse Holder

Two pole fuse holder, type „finger-save":

  • 14x51mm: Siba; Part.-No: 51 058 04.2
  • 22x58mm: Siba; Part.-No: 51 060 04.2

Intermediate Circuit (DC Bus)

Fuse type

  • with VBUSBAL 0, 1, 2 (110V - 400V):
    e.g. fuse type class gRL 50A (gS) from Siba, Size 22x58mm AC 690/700V and DC 440V, 30kA
  • with VBUSBAL 2 and 3 (400 - 480V):
    e.g. fuse type class aR 50A from Siba; Size 14x51mm DC 700V, 30/50kA

Fuse Holder

Two pole fuse holder, type „finger-save":

  • 14x51mm: Siba; Part.-No: 51 058 04.2
  • 22x58mm: Siba; Part.-No: 51 060 04.2