| Products |
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| “Authorised Indian Distributor” |
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| Modular Fuse Bases for Cyl. Fuses |
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DF Electric offers a comprehensive range of Series PMF Modular Fuse Holders for IEC Industrial Cylindrical Fuses of sizes: 8 x 31, 10 x 38, 14 x 51, 22 x 58. Its innovative design offers; Easy mounting on DIN / EN Rail; Compact footprint / dimensions; Finger safe connection terminals; Optional light Indicator; Optional Alarm Micro Switch for use with fuses with striker pin; Non-load disconnection; Quick & easy replacement of Cylindrical Fuses. All sizes are available in 1, 2, 3, & 4-pole version, with or without Neutral. The multi-pole configuration of Fuse Holders of sizes: 8 x 31, 10 x 38, 14 x 51 can also be assembled by the End User / OEM by using several single-pole Fuse Holders with optional assembly accessories (pins & handle ties). PMF Fuse holders are made with tough, durable & self-extinguishing material & have silver plated copper contacts. Most models of sizes: 10 x 38, 14 x 51 & 22 x 58 are with UL & CSA approvals. All Products are with CE marking. |
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| For Fuses of Size: 8 x 31 mm (Ø X L) |
| No. of Poles |
No. of 17,5 mm Modules |
Catalogue No. |
Rated Current (A) |
Rated Voltage (Vac) |
Packing Qty. |
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|
Without Indicator |
With Indicator |
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| 1 |
1 |
480020 |
480020 I |
25 |
400 |
12 |
| N |
1 |
480032 N |
- |
32 |
690 |
12 |
| 1+ N |
1 |
480125 |
4801251 |
25 |
400 |
12 |
| 1 + N |
2 |
480120 |
480120 I |
25 |
400 |
6 |
| 2 |
2 |
480220 |
480220 I |
25 |
400 |
6 |
| 3 |
3 |
480320 |
480320 I |
25 |
400 |
4 |
| 3 + N |
3 |
480325 |
480325 I |
25 |
400 |
4 |
| 3 + N |
4 |
480420 |
480420 I |
25 |
400 |
3 |
| 4 |
4 |
480520 |
480520 I |
25 |
400 |
3 |
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| For Fuses of Size: 14 x 51mm (Ø x L) |
| No. of Poles |
No. of 17,5 mm Modules |
Catalogue No. |
Rated Current (A) |
Rated Voltage (Vac) |
Packing Qty. |
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|
Without Indicator |
With Indicator |
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| 1 |
1,5 |
† 480050 |
† 480050 I |
50 |
690 |
6 |
| N |
1,5 |
480050 N |
- |
50 |
690 |
6 |
| 1 + N |
3 |
† 480150 |
† 480150 I |
50 |
690 |
3 |
| 2 |
3 |
† 480250 |
† 480250 I |
50 |
690 |
3 |
| 3 |
4,5 |
† 480350 |
† 480350 I |
50 |
690 |
2 |
| 3 + N |
6 |
† 480450 |
† 480450 I |
50 |
690 |
1 |
| 4 |
6 |
† 480550 |
† 480550 I |
50 |
690 |
1 |
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| † These Holders are UL approved |
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| For Fuses of Size: 10 x 38mm (Ø x L) |
| NO. Of
Poles |
No. of 17,5 mm Modules |
Catalogue No. |
Rated Current
(A) |
Rated Voltage
(Vac) |
Packing Qty. |
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|
Without Indicator |
With Indicator |
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| 1 |
1 |
‡ 480032 |
‡ 480032 I |
32 |
690 |
12 |
| N |
1 |
480032 N |
- |
32 |
690 |
12 |
| 1 + N |
1 |
480135 |
480132 I |
32 |
690 |
12 |
| 1 + N |
2 |
‡ 480132 |
‡ 480135 I |
32 |
690 |
6 |
| 2 |
2 |
‡ 480232 |
‡ 480232 I |
32 |
690 |
6 |
| 3 |
3 |
‡ 480332 |
‡ 480332 I |
32 |
690 |
4 |
| 3 + N |
3 |
480335 |
480335 I |
32 |
690 |
4 |
| 3 + N |
4 |
‡ 480432 |
‡ 480432 I |
32 |
690 |
3 |
| 4 |
4 |
‡ 480532 |
‡ 480532 I |
32 |
690 |
3 |
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| ‡ These Holders are UL & CSA approved |
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| For Fuses of Size: 22 x 58mm (Ø x L) |
| No. Of Poles |
No. of 17,5 mm Modules |
Catalogue No. |
Rated Current
(A) |
Rated Voltage
(Vac) |
Packing Qty. |
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Without Indicator |
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| 1 |
2 |
† 450125 |
*125 |
690 |
6 |
| N |
2 |
450125 N |
*125 |
690 |
6 |
| 1 +N |
4 |
† 451125 |
*125 |
690 |
3 |
| 2 |
4 |
† 452125 |
*125 |
690 |
3 |
| 3 |
6 |
† 453125 |
*125 |
690 |
2 |
| 3 + N |
8 |
† 454125 |
*125 |
690 |
1 |
| 4 |
8 |
† 455125 |
*125 |
690 |
1 |
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† These Holders intermitteare UL approved
* 125A
intermittent use (100A continuous use) |
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| For Fuses of Size: 22 x 58mm (Ø x L) |
| No. of Poles |
Catalogue No. |
Description |
Rated Current
(A) |
Rated Voltage
(Vac) |
Packing Qty. |
| 1 |
480090 |
Prebreaking/Fusing/Presence |
50 |
690 |
6 |
| 3 |
480091 |
Prebreaking/Fusing/Presence |
50 |
690 |
2 |
| 3 + N |
480092 |
Prebreaking/Fusing/Presence |
50 |
690 |
1 |
| 1 |
480050M |
Only Fusing |
50 |
690 |
6 |
| 3 |
480350M |
Only Fusing |
50 |
690 |
2 |
| 3 + N |
480450M |
Only Fusing |
50 |
690 |
1 |
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| For Fuses of Size: 22 x 58mm (Ø x L) |
| No. of Poles |
Catalogue No. |
Description |
Rated Current
(A) |
Rated Voltage
(Vac) |
Packing Qty. |
| 1 |
480090 |
Prebreaking/Fusing/Presence |
*125 |
690 |
6 |
| 3 |
480091 |
Prebreaking/Fusing/Presence |
*125 |
690 |
2 |
| 3 + N |
480092 |
Prebreaking/Fusing/Presence |
*125 |
690 |
1 |
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| * 125A
intermittent use (100A continuous use) |
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Optional accessories such as Assembly Pins and Handle Ties for PMF Modular Fuse Holders are available at extra cost. With these accessories it is possible to assembly multi-pole units using several single-pole fuse holders.
Microswitches for PMF 14 x 51 single phase or three-phase fuse holders are also available at extra cost, for fusing detection when fuses with striker pin are used. Microswitch with NO/NC contacts: 5A - 250Vac.
| For Fuse Holders of Size |
Catalogue No. |
Description |
Packing Qty. |
| 8 x 31 |
10 x 38 |
14 x 51 |
480005 |
Pins For Multipole Assembly |
12 |
| 8 x 31 |
10 x 38 |
-- |
480006 |
Handle Ties For Multipole Assembly |
12 |
| -- |
-- |
14 x 51 |
480007 |
Handle Ties For Multipole Assembly |
12 |
| -- |
-- |
14 x 51 |
480008 |
Microswrtch/Only Fusing |
5 |
| -- |
-- |
14 x 51 |
480009 |
Microswitch/Only Fusing |
2 |
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| PROPERTIES |
INDUSTRIAL MODULAR FUSE HOLDERS "CYLINDRICAL' |
PMF
8 x 31 mm (¢ x L) |
PMF
10 x 38 mm (¢ x L) |
PMF
14 x 51mm (¢ x L) |
PMF
22 x 58mm (¢ X L) |
| MATERIALS |
Body |
Thermoplastic Polyster 30% F.V. |
| Handle |
Thermoplastic Polyster 30% F.V. |
Thermosetting |
| Flammability Index "UL94" |
V0 - 1, 5 mm |
V0 - 1,5 mm |
V0 - 1, 5 mm |
V0 - 1, 5mm |
| Max Function Temperature |
110 - 120°C |
110 - 120°C |
110 - 120°C |
110 - 120°C |
| Contacts |
Silver Plated Copper |
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| ELECTRICAL |
Max. Amperage by U (V) |
400 V |
25 A |
32 A |
50 A |
125A |
| 500 V |
-- |
25 A |
40 A |
100A |
| 690 V |
-- |
-- |
25 A |
80 A |
| Derating Temperature |
20°C |
1 |
1 |
1 |
1 |
| 30°C |
0,95 |
0,95 |
0,95 |
0,95 |
| 40°C |
0,9 |
0,9 |
0,9 |
0,9 |
| 50°C |
0,8 |
0,8 |
0,8 |
0,8 |
| Derating No. of Poles |
1-3 |
1 |
1 |
1 |
1 |
| 4-6 |
0,8 |
0,8 |
0,8 |
0.8 |
| 7-9 |
0,7 |
0,7 |
0,7 |
0.7 |
| >10 |
0,6 |
0,6 |
0,6 |
0,6 |
| Max. Power Disipation |
|
3 W |
3 W |
5 W |
9,5 W |
| Utilization Category |
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AC-22B 400V |
AC-22B 500V
AC-21B 690V |
AC-22B 500V
AC-21B 690V |
AC-21B 690V |
| Degree of Protection |
|
IP-20 |
IP-20 |
IP-20 |
IP-2C |
| USE |
Max. Connecting Wire |
|
1 x 16 mm2 STRANDED
1 x 25 mm2 SOLID |
1 x 25 mm2 STRANDED |
1 x 50mm2 |
1 x 10 mm2 STRANDED (1P + N 1M)
1 x 16mm2 SOLID (1P + N 1M) |
1 x 35 mm2 SOLID |
| Fixing |
Rail DIN/EN |
-- |
-- |
-- |
-- |
| SCREW |
-- |
-- |
-- |
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| Max. Tightening Torque |
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2,5 Nm 2 Nm (1P + N 1M) |
2,5 Nm 2 Nm (1P + N 1M) |
3 Nm |
4 Nm |
| With Indicator Light |
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120/400V |
120/690V |
230/690V |
230/690V |
| With Microswitch 5A - 250Vac |
FUSING |
-- |
-- |
-- |
-- |
PREBREAKING
PRESENCE
FUSING |
-- |
-- |
-- |
-- |
| Onsite assembly of multi-pole configuration with Accessories |
-- |
-- |
-- |
-- |
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Use of Ultra Rapid Fuses in PMF Indl. Modular Fuse Holders |
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The Modular Fuse Holders for cylindrical fuses have a rated power acceptance according to the maximum power dissipations allowed far the general
use Class: gG Fuses and back up fuse links.
These maximum values allowed for the Class: gG/aM Fuses are regulated by standards (IEC/EN60269-2-1). In the same way, this standards specify
the minimum power acceptance for the fuse holders. This power acceptance is the power dissipated by the fuses (converted in heat) that the
fuse holder can accept with an acceptable increase of the temperature (values also regulated by standards).
Ultra Rapid Semiconductor Protection Fuses, have a rated power dissipation (or power loss) higher than the Class: gG or aM Fuses, and
for this reason there are some limitations for the application of these Semiconductor Protection Fuses in closed modular fuse holders
It is necessary to check that the fuse links have a power dissipation not higher than the maximum value admissible for the fuse holder indicated by
the manufacturer.
When it is not possible to use modular fuse holders, the solution is the use an open fuse holder where the heat can be appropriately dissipated.In the following table are indicated the maximum values of power acceptance for DF ELECTRIC fuse holders. These limits should never be exceeded. |
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| Fuse Holder Type |
Rated Power acceptance IEC/EN60269-2-1 |
Max. Power acceptance DF Electric Fuse Holder |
| PMF 10 X 38 |
3W |
4W |
| PMF 14 X 51 |
5W |
6W |
| PMF 22 X 58 |
9, 5 W |
12W |
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| PMF Fuse Holders Assembly |
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For assembling multi-pole IEC Industrial Modular Fuse Holdrs several accessories as under are needed, for example: a double pole holder: 2 assembly pins & 1 handle tie are needed. a triple pole holder: 4 assembly pins & 2 handle ties are needed. |
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| PMF 8 X 31, 10 X 38 Fuse Holder |
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| PMF 14 X 51 Fuse Holders |
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| PMF 22 X 58 Fuse Holders |
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