PBD / PBS / E14, E18 LV fuse bases and NH fuse links up to 630 A
Country: Poland · Model: PBD / PBS / E14 / E18
PBD, PBS and modular E14/E18 fuse bases hold the fuse link and connect it into the circuit of LV switchgear for currents up to 630 A and voltages up to 690 V. The classic bases are used in cable and utility cabinets, industrial and power switchboards and LV reactive power compensation banks.
- PBD (classic)
- single-pole, NH00/1/2/3, up to 630 A, 690 V; for a mounting panel; M12 clamp and V-shaped clamp, cable up to 240 mm²
- PBS (busbar-type)
- three-pole, for busbars; PBS 00, 00/100 mm, 2, 3; PBS 3: 630 A, 690 V, Ui 1000 V, 100 kA, 60 W, IP20
- E14 / E18
- modular; 400 V AC / 250 V DC; Uimp 6 kV; 50 kA AC / 8 kA DC; V0, GWT 960 °C, CTI 600; IP20
- NH fuse links
- sizes 000–3, 2–630 A, 500 V AC, 120 kA
Technical specifications
| PBD (classic) | single-pole, NH00/1/2/3, up to 630 A, 690 V; for a mounting panel; M12 clamp and V-shaped clamp, cable up to 240 mm² |
|---|---|
| PBS (busbar-type) | three-pole, for busbars; PBS 00, 00/100 mm, 2, 3; PBS 3: 630 A, 690 V, Ui 1000 V, 100 kA, 60 W, IP20 |
| E14 / E18 | modular; 400 V AC / 250 V DC; Uimp 6 kV; 50 kA AC / 8 kA DC; V0, GWT 960 °C, CTI 600; IP20 |
| NH fuse links | sizes 000–3, 2–630 A, 500 V AC, 120 kA |
| Conditions | −25…+55 °C, up to 2000 m; outdoors in an enclosure of at least IP34 |
| Standards | PN-EN 60269-1, PN-HD 60269-2 |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The single-pole PBD bases are fixed to a mounting panel, with copper jaw contacts screwed to a body of non-flammable plastic. In sizes 00, 1 and 2 the contacts are tinned (silver on special order), and in size 3 silver is standard. The PBD 3 is rated for 630 A and 690 V, a cable of up to 240 mm² is led under an M12 clamp or a V-shaped bracket, and busbars can be connected as well. The three-pole busbar-type PBS bases sit directly on the busbars and free up a good deal of space in the switchboard compared with panel-mounted bases, and the range includes PBS 00, PBS 00/100 mm, PBS 2 and PBS 3. For the PBS 3 the thermal current is 630 A, Ui is 1000 V, 50–60 Hz, power dissipation is 60 W, peak withstand current is 100 kA, and the protection is IP20 without fuse links and with fuse links under the covers. The modular E14 and E18 for cylindrical fuse links are mounted on a DIN rail, the V0 class plastic withstands a glow wire of 960 °C at CTI 600, the separators are stainless steel, and the tightening torque is 2.0/2.5 N·m. The bases comply with PN-EN 60269-1 and PN-HD 60269-2.
How to choose
The base type determines the mounting method. PBD is taken for a panel and cable, PBS for busbars, and E14/E18 for a DIN rail. NH fuse links are selected by base size (000–3) and by current from 2 to 630 A, with a voltage of 500 V AC and a breaking capacity of 120 kA. To switch a line under load, an RBK pro fuse switch disconnector for 125–630 A is installed instead of a base.
Request a price and lead time
PBD / PBS / E14, E18 LV fuse bases and NH fuse links up to 630 A. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
Does the current of the PBS 3 base need to be derated in a hot cabinet?
Yes, at +41…+45 °C the current is reduced by 5 %, and at +46…+55 °C by 10 %, so in a tight cabinet without ventilation the rating is taken with a margin.
What cable cross-section is the PBD 3 base designed for?
Up to 240 mm² through an M12 screw clamp or a V-shaped bracket. Busbars can be connected instead of a cable.
Are the modular E14 and E18 bases suitable for DC circuits?
Yes, the operating voltage is 400 V AC or 250 V DC, with Uimp of 6 kV. The rated short-circuit current is 50 kA on AC and 8 kA on DC.
In what conditions can PBD and PBS fuse bases be installed?
In rooms free of dust and aggressive gases at −25…+55 °C and at altitudes up to 2000 m. Outdoors only in an enclosure of at least IP34.
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