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EHA Load Break Disconnect Switch 400A,630A,800A 500V 3P 4P

Product Benefits

  • Quick and perfect installation every time
  • Base, door or DIN rail mounted
  • Snap-on accessories available.
  • Easy to install
  • High performance
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Description

Load break switches are devices used to open an electrical circuit by isolating the source from the consumer. Whether they are manual, motorised or with a trip function, these devices ensure the on-load making, breaking and safety disconnection of low-voltage electrical circuits. Easy to assemble and easy to use, they are suitable for structures evolving in the industrial sector, public distribution, as well as emergency switching, distribution panels and motor feeders.

Modular device

  • EHD DC load break switches  are devices which are DIN rail or backplate mountable and can be integrated into a modular panel with a 45 mm front cut-out.
  • Patented switching technology
  • EHD DC load break switches with benefit from proven breaking technology based on a system of double break contacts with arc extinguishing chambers.

 

Product Benefits

Easy to install

  • Wiring: Since the switch is non-polarized, all types of wiring and connections are possible.
  • Easy access without tools, and auxiliary contacts can be integrated without tools.
  • The mechanical device can be centered to meet the installation requirements.

 

Safe reliable operation

  • Reliable position indication through visible contacts.
  • The opening and closing of the switch is fully independent from the speed of operation, ensuring safe operation under all conditions.
  • High temperature withstand: no derating up to 55 C(131F),functional from -40 to+122F(-40 to +50°C).

 

Designed for harsh environments

  • Vibration testing (from 13.2 to 100 Hz at 0.7 g).
  • Choc testing (15 g during three cycles).
  • Humid temperature testing (2 cycles, 55C/131F with 95% humidity level).
  • Salt mist testing(3 cycles with humidity storage, 40C/104F, 93% humidity after each cycle).

 

Technical Data

Rated current Ie 160A 250A 315A 315H 400A 630A 800A
Frame size EHD-315 EHD-630
Thermal current (Ith) 160 250 315 400 400 630 800
Rated insulation voltage (Ui) 1500 1500 1500 1500 1500 1500 1500
Rated impulse withstand voltage Uimp (KV) 12 12 12 12 12 12 12
Code Number of poles Rated voltage Utilisation category Ie(A) Ie(A) Ie(A) Ie(A) Ie(A) Ie(A) Ie(A)
EHDN 2P(1P+,1P-) 4P(2P+,2P-) 1000VDC DC-PV1/DC-21B 160 250 315 400 400 630 800
EHDT 2P(1P+,1P-) 4P(2P+,2P-) 1500VDC DC-PV1/DC-21B 100 160 250 315 400 630 800
EHDT 3P(2P+,1P-) 6P(4P+,2P-) 1500VDC DC-PV1/DC-21B 315 400
Number of poles Rated voltage Utilisation category Ie(A) Ie(A) Ie(A) Ie(A) Ie(A) Ie(A) Ie(A)
EHDN 2P(1P+,1P-) 4P(2P+,2P-) 1000VDC DC-PV2 160 250 315 400 630
EHDT 2P(1P+,1P-) 4P(2P+,2P-) 1500VDC DC-PV2 100 160 250 400 630
EHDT 3P(2P+,1P-) 6P(4P+,2P-) 1500VDC DC-PV2 315
The short-circuit capacity is between 1000 and 1500VDC (no protection)
Rated short time withstand current lcw 1s (kAeff)                                                               Icw 5 5 5 5 8 8 8
Rated short-circuit making capacity lcm(kA peak)- 60 ms                                                     Icm 10 10 10 10 10 10 10
Cable
Recommended Cu rigid cable cross section(mm) 70 120 185 185 240 2×185 2×240
Recommended Cu busbar width(mm) 20 20 20 20 25 25 25
Mechanical characteristics
Durability (number of operating cycles) 8000 8000 8000 8000 8000 8000 8000
Number of cycles of operation with current 1000 1000 1000 1000 1000 1000 1000

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