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Hai Nam SSnR Switchboards

SSnR is an outstanding switchboard designed for safety to personnel and equipment, and for reduction of operational expenditure.

SSnR can be upgraded to become smart and connectable.

SSnR has these qualifications:
  • Fully Type Tested and compliant with IEC 61439-1&2 and IEC 61641 certified by ASTA-UK.
  • Maximum busbar of 6300A.
  • Draw-out, fixed ACB and 3 or 4 pole up to 6300A.
  • Rated voltage up to 690V.
  • Short Circuit withstand strength up to 85kA/3s.
  • Internal ARC Classified up to 100kA/0.4s at 415V – Arcingg class C fulfilling 1 – 7 criteria to protect people & assembly.
  • Form up to Form 4B, IK10.
  • Incoming/outgoing access top, bottom, rear, front.
  • Flexible & expandable.
  • Possible to integrate with any communication.
  • Comprehensive Support by design, project & service team.
Rated operational voltage (Ue) 415V / 690V
Rated Frequency 50 / 60 Hz
Rated Current (ln) up to 6300A
Rated Diversity Factor 1
Dielectric properties
Rated insulation voltage (Ui) Up to 1000V
Rated impulse withstand voltage (Uimp) Up to 12kV
Rated short-time withstand current (lcw) 50kA/3s ~ 85kA/3s
Rated peak withstand current

  • 3 phases
  • Phase – Neutral



Rated short-time withstand current 60kA/0.5s
Effective connection between the exposed conductive R < 0.1 Ohm
Part of the assembly and the protective circuit
Clearances & Creepage distances >=14mm; >=16mm pollution degree 3
Degree Protection Up to IP 54
Form as per IEC 61439-1 4b


Safety with IEC 61641-V2 standard (all 7 criteria) compliance (Arcing Class C): up to 100kA/0.4s – 415V

People protection achieved with following criteria fulfilled:

1: correctly secured doors.

2: parts (of the ASSEMBLY), which may cause a hazard, do not fly off.

3: arcing does not cause holes in enclosure.

4: the indicators arranged vertically do not ignite.

5: the equipotential bonding arrangement for accessible parts of the enclosure is still effective.

Assembly protection achieved with following criteria fulfilled:

6: no propagation of the arc to other areas of the assembly.

7: after clearing the fault, emergency operation of the remaining assembly is possible. Verified by a dielectric test 1.5 rated voltage during 1 minute.