NH fuse base, 630A, 630A/500V, 500A/690V, NH3Low-voltage h.b.c. fuse base, rated operational current 630A, max. fuse-link 630A/500V - 500A/690V, frame size NH3
NH fuse base, 630A, 630A/500V, 500A/690V, NH3
Low-voltage h.b.c. fuse base, rated operational current 630A, max. fuse-link 630A/500V - 500A/690V, frame size NH3
| Product range | Fuse Bases |
| Basic function | NH fuse base |
| Number of poles | 3 pole |
| Rated operational current [Ie] | 630 A |
| 500 V | 630 A |
| 690 V | 500 A |
| Frame size | NH3 |
| Standards | IEC/EN 60 269-2-1; VDE0636-201 |
| Climatic proofing | Damp heat, constant, to IEC 60068-2-78 Damp heat, cyclic, to IEC 60068-2-30 |
| Ambient temperature | -20 - +55 °C |
| Ambient temperature | -25 - +55 |
| Altitude | Max. 2000 m |
| Mounting position | Vertical or horizontal |
| Overvoltage category/pollution degree | III/3 |
| Degree of protection, from the front >Operational state |
IP00 |
| Direction of incoming supply | as required |
| Weight | 2.7 kg |
| Rated operational voltage [Ue ] | 690 V AC |
| Rated operational voltage [Ue] | 440 V DC |
| Rated operational current [Ie] | 630 A |
| Rated frequency [f] | 40 - 60 Hz |
| Heat dissipation at Ith AC, without NH-SE | 52 W |
| Heat dissipation at Ith DC, without NH-SE | 34.7 W |
| Rated insulation voltage [Ui] | 750 V AC |
| Rated insulation voltage [Ui ] | 750 V |
| Frame size | NH3 |
| Max. rated current, gL/gG | 630 A |
| Max. admissible heat dissipation NH-SE [Pv] | 48 W |
| Flange connection >Bolt diameter [d] |
M10 mm |
| Flange connection >Cable lug |
1 x 25 - 300 mm2 |
| Flange connection >Flat busbar [max.] |
40 x 10 mm |
| Flange connection >Tightening torque |
30 - 35 Nm |
| Box terminal >Stranded |
25 - 300 mm2 |
| Box terminal >Flat conductor [Lamellenzahl x Breite x Dicke ] |
11 x 21 x 1 mm |
| Box terminal >Tightening torque |
23 Nm |
| Clamp-type terminal >Stranded |
120 - 300 mm2 |
| Clamp-type terminal >Tightening torque |
11 Nm |
| Double clamp-type terminal >Stranded |
2 x 120 … 240 mm2 |
| Double clamp-type terminal >Tightening torque |
11 Nm |
| Operating ambient temperature min. | -25 °C |
| Operating ambient temperature max. | +55 °C |
| Construction size | NH3 |
| Number of poles | 3 |
| Rated current | 630 A |
| Bus-mounting type | No |
| Swivelling mechanism | No |
As Mnelko, we are a reliable partner in industrial automation solutions, offering high-quality and innovative products with a wide product range to meet all the needs of your business. Our product portfolio consists of solutions designed based on the principles of high performance, durability, and efficiency to support modern industrial processes.
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