Low Voltage Components Catalog
Low Voltage Components Catalog
Low Voltage Components Catalog
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IBS<br />
INTENSITY<br />
TEMPERATURE RISE<br />
NOTE : The tables show the temperature rise (ΔT),<br />
Depending on the current value (I).<br />
• WORKING TEMPERATURE = AMBIENT TEMPERATURE + ΔT<br />
FOR 1 IBS PER PHASE<br />
IBS 25 IBS 50 IBS 120 IBS 185 IBS 240<br />
ΔT (K) I (A) I (A) I (A) I (A) I (A)<br />
30 145 217 310 407 488<br />
40 167 251 358 470 564<br />
50 187 280 400 526 630<br />
60 205 307 439 576 690<br />
70 221 331 474 622 746<br />
FOR 2 IBS PER PHASE<br />
IBS 25 IBS 50 IBS 120 IBS 185 IBS 240<br />
ΔT (K) I (A) I (A) I (A) I (A) I (A)<br />
30 232 347 496 651 781<br />
40 267 401 572 752 901<br />
50 299 448 640 842 1008<br />
60 328 491 701 922 1104<br />
70 354 530 757 995 1192<br />
FOR 3 IBS PER PHASE<br />
IBS 25 IBS 50<br />
ΔT (K) I (A) I (A)<br />
30 290 434<br />
40 334 502<br />
50 374 560<br />
60 410 613<br />
70 442 662<br />
USING 2 OR 3 “IBS” IN PARALLEL<br />
NOTE :<br />
Using 2 or 3 IBS in parallel<br />
multiply the nominal current (I)<br />
of 1 IBS by the factor in the table.<br />
FACTOR<br />
1 1.6 2<br />
* only for IBS 25-50<br />
*<br />
EX :<br />
FOR IBS 25 : ADMISSIBLE CURRENT FOR 2 IBS (ΔT = 50 K) = 187 X 1.6 = 299 A<br />
FOR IBS 25 : ADMISSIBLE CURRENT FOR 3 IBS (ΔT = 50 K) = 187 X 2 = 374 A<br />
FOR IBS 120 : ADMISSIBLE CURRENT FOR 2 IBS (ΔT = 50 K) = 400 X 1,6 = 640 A<br />
“Contact” Washer<br />
φ1<br />
φ<br />
ADDITIONAL INFORMATION<br />
IBS 25 - IBS 50<br />
SPACE BETWEEN 2 OR 3 IBS IN PARALLEL.<br />
A minimum air gap is required:<br />
use FS 24 spacer clamp<br />
IMPORTANT:<br />
ASSEMBLY INSTRUCTIONS<br />
Nut<br />
Flat Washer<br />
IBS 25 - IBS 50<br />
SPACER CLAMP<br />
DESIGNATION Part No. H (mm) L (mm) W (kg)<br />
FS 24 553550 53 30 0,015<br />
IBS 120 - IBS 185 - IBS 240<br />
MINIMUM BENDING RADIUS.<br />
• IBS 120 = 50 mm<br />
• IBS 185 = 57 mm<br />
• IBS 240 = 65 mm<br />
Copper bar<br />
φ2<br />
Ø (mm) Screw<br />
External Flat and Clamping<br />
“Contact” Washers<br />
diameters (mm) Torque (N.m)<br />
IBS 25<br />
ø1 8,5 HM 08 18 30<br />
ø2 10,5 HM 10 20 60<br />
IBS 50<br />
ø1 10,5 HM 10 20 60<br />
ø2 10,5 HM 10 20 60<br />
IBS 120 - IBS 185 - IBS 240<br />
φ<br />
Screw<br />
“Contact” Washer<br />
Flat Washer<br />
Ø (mm) Screw<br />
External Flat and Clamping<br />
“Contact” Washers<br />
diameters (mm) Torque (N.m)<br />
IBS 120 10,5 HM 10 20 60<br />
IBS 185 10,5 HM 10 20 60<br />
IBS 240 12,5<br />
HM 10 20 60<br />
HM 12 24 110<br />
IBS<br />
WITH A CLASS 8.8 ZINC COATED BOLT, USING “CONTACT” WASHERS<br />
TIGHTENED WITH TORQUE WRENCH, WITHOUT LUBRICATION.<br />
OTHER LENGTHS AND HALOGEN FREE IBS AVAILABLE UPON REQUEST<br />
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