Neutral Earth Resistors

NER 63.5 ohm 5A 550VAC

• Model: 6230-009
• NER for 550VAC transformer (secondary side)
• PH-N voltage: 317.5VAC (550/√3)
• Resistance: 63.5 ohms
• Fault current: 5A for 10s
• Current transformer: 50/5A
• Rated insulation voltage: 630VAC
• Insulation coordination: IEC 60664-1
• Resistor type: Wire wound
• Enclosure material: Mild steel
• Enclosure finish: Powder-coated
• Colour: Orange
• Lockable door
• Wall mount
• Ingress protection: IP23

NER 4.76 ohm 400A 3.3kV

• Model 6230-010
• NER for 3.3kV transformer (secondary)
• PH-N voltage: 1905V (3.3kV/√3)
• Resistance: 4.76 ohms
• Fault current: 400A for 20s
• Rated insulation voltage: 7.2kV/20kV/60kV BIL
• Insulation coordination: IEC 60071-01
• Resistor type: CrNi grids
• Enclosure material: AISI304 stainless steel
• Ingress protection: IP23
• Cable entry: Glandplate