Surge Protection – Power Protection

Plagued by high voltages and power spikes? With a Netshield power solution you can protect your buildings on all levels including distribution boxes and server cabine

It is an unfortunate fact of life that computers, computer related products, process control and data communications equipment can be damaged by high-voltage surges and spikes. Such power surges and spikes are most often caused by lightning strikes but can also be caused by the more commonly induced surge on a buried cable due to power cuts.  Good quality ground connection cannot be emphasized enough. Once a threatening surge is detected, a lightning protection device grounds the incoming signal connection point of the equipment being protected. Thus, redirecting the threatening surge on a path-of-least-resistance (impedance) to ground where it is absorbed. When providing surge protection for a building, the components that need protection are:

  1. The Street Power Distribution Box from Eskom will take the highest spike and therefore one must install the flash/trap. This installation must be executed by a qualified electrician.
  2. Some buildings have only one Distribution Box where others have one on each floor depending on the size of the building. In each and every one of these DB Boxes it is necessary to install an NLFC1S350/NLFC3S350, depending on whether 1-phase or 3-phase power is used. In case of a strike the trip switch will trip and will not be able to be reset again before the blown fuse, indicated by a red LED light, is replaced with a (NLRF350ST/NLRFN350ST). This ensures that no strike will go unnoticed and that the equipment might be left unprotected for only a short period of time, until the fuse in question has been replaced.
  3. In the server room it is necessary to install a Netshield unit.
In Cabinet Surge Protection for Power and Interfaces
NLMAINUNIT-2U-E Equipment stage Surge and Lightning protection with Electrical VAC power measurement, monitoring protection 2U Rack mountable unit. The unit includes integrated type 1 + 2 surge protection with automatic fault/failure detection, On-board LCD status display, • Individual user settable VAC feed power electronic trip on over voltage and current for each PDU, Three prong 15Amp feeding power socket for Telco NTU (networking termination unit), On-board SNMP Management agent, RS485 expansion bus for additional probes, One X21/V11 optical isolation barrier & surge protection (expandable to 3) for one WAN X.21 Interface,  three PDU’s (Power Distribution Unit) with; Dual PDU banks, 32Amp surge and high power feed/trip circuits is delivered onto 2 independently protected and monitored banks of 4 x C19 IEC60320 type power outlets, o One internal 16Amp low power feed/trip circuit is delivered onto 12 x C13 low power IEC60320 type outlets, 4 x 1.8Meter C13 to C14 type and 2 x C20 to C19 power cord supplied with the unit.
NLMAINLITE-2U-E Equipment stage Surge and Lightning protection with Electrical VAC power measurement, monitoring protection 2U Rack mountable unit. The unit includes integrated type 1 + 2 surge protection with automatic fault/failure detection On-board LCD status display,  User settable VAC feed power electronic trip on over/under voltage and current on internal PDU, Three prong 15Amp feeding power socket for Telco NTU (networking termination unit), On-board SNMP Management agent, RS485 expansion bus for additional probes, One X21/V11 optical isolation barrier & surge protection (expandable to 3) for one WAN X.21 Interface, PDU’s (Power Distribution Unit) with 8 x C13 IEC60320 type Low power outlets, 4 x 1.8Meter C13 to C14 type power cord supplied with the unit.
NLPROCHS-2U-E Equipment stage Surge and Lightning protection with Electrical VAC power measurement, monitoring protection 2U Rack mountable unit. The unit includes Integrated type 1 + 2 surge protection with automatic fault/failure detection, On-board LCD status display, Individual user settable VAC feed power electronic trip on over voltage and current for each PDU, Three prong 15Amp feeding power socket for Telco NTU (networking termination unit), On-board SNMP Management agent, RS485 expansion bus for additional probes, Three X21/V11 optical isolation barrier & surge protection slots, three PDU’s (Power Distribution Unit) with, Dual PDU banks, 32Amp surge and high power feed/trip circuits is delivered onto 2 independently protected and monitored banks of 4 x C19 IEC60320 type power outlets, One internal 16Amp low power feed/trip circuit is delivered onto 12 x C13 low power IEC60320 type outlets, 4 x 1.8Meter C13 to C14 type and 2 x C20 to C19 power cord supplied with the unit.
NLPROCLITE-2U-E Equipment stage Surge and Lightning protection with Electrical VAC power measurement, monitoring protection 2U Rack mountable unit. The unit includes integrated type 1 + 2 surge protection with automatic fault/failure detection, On-board LCD status display,
User settable VAC feed power electronic trip on over/under voltage and current on internal PDU, Three prong 15Amp feeding power socket for Telco NTU (networking termination unit), On-board SNMP Management agent, RS485 expansion bus for additional probes, One X21/V11 optical isolation barrier & surge protection (expandable to 3) for one WAN X.21 Interface, PDU’s (Power Distribution Unit) with 8 x C13 IEC60320 type Low power outlets, 4 x 1.8Meter C13 to C14 type power cord supplied with the unit.
NLEDU-PROC32-1U 1U Rack mountable 32Amp Cabinet Class I + II Surge Protection Unit with Protection Failure indicators, Hubble power feeding plug on 3 Meter Cabtyre lead, 32Amp trip switch, power indicator and 1.5 Meter feeding power output lead for hardwiring to UPS. Earthing Stud included.
NLEDU-PROC16-1U 1U Rack mountable 16Amp Cabinet Class I + II Surge Protection Unit with Protection Failure indicators, 3pin SA Plug power feeding plug on 3 Meter Cabtyre lead, 16Amp trip switch, power indicator and C19 power output connector with1.5 meter C19/C20 power lead for hardwiring to UPS. Earthing Stud included.
   
DISTRIBUTION BOARD MOUNTABLE MONITORED SURGE PROTECTION
   
NLFC3S350 Three Phase compact type1 + 2 surge protection units with Remote fault indicator contact management, Impulse discharge current (10/350) µs (N-PE), peak current value Iimp 100 kA, Impulse discharge current (10/350) µs (N-PE), specific energy 2500 kJ/Ω, Impulse discharge current (10/350) µs (N-PE), charge 50 As, Nominal discharge current In (8/20) µs (N-PE) 100 kA, Nominal discharge current In (8/20) µs (L-N), (L-PE) 25 kA, Follow current interrupt rating Ifi (L-N) 25 kA (264 V AC), Follow current interrupt rating Ifi (N-PE) 100 A (350 V AC), Front of wave spark over voltage at 6 kV (1.2/50) µs  (L-N) ≤ 1.5 kV, (L-PE) ≤ 2.2 kV, (N-PE) ≤ 1.5 kV, Response time tA (L-N) ≤ 25 ns, Rated load current IL 125 A (< 55 °C),  Standards IEC 61643-11 2011, EN 61643-11 2012 
NLFC1S350 Single Phase compact type1 + 2 surge protection units with Remote fault indicator contact management, Impulse discharge current (10/350) µs (N-PE), peak current value Iimp 100 kA, Impulse discharge current (10/350) µs (N-PE), specific energy 2500 kJ/Ω, Impulse discharge current (10/350) µs (N-PE), charge 50 As, Nominal discharge current In (8/20) µs (N-PE) 100 kA, Nominal discharge current In (8/20) µs (L-N), (L-PE) 25 kA, Follow current interrupt rating Ifi (L-N) 25 kA (264 V AC), Follow current interrupt rating Ifi (N-PE) 100 A (350 V AC), Front of wave spark over voltage at 6 kV (1.2/50) µs  (L-N) ≤ 1.5 kV, (L-PE) ≤ 2.2 kV, (N-PE) ≤ 1.5 kV, Response time tA (L-N) ≤ 25 ns, Rated load current IL 125 A (< 55 °C), Standards IEC 61643-11 2011, EN 61643-11 2012
NT3-2PES-230AC-FM Type 3 surge protection device, Arrester rated voltage UC 253 V AC, Nominal current IN 26 A (30 °C),
Nominal discharge current In (8/20) µs 3 kA, 3 kA (in acc. with UL 1449), Combination wave UOC 6 kV (L-N (L)), ≤ 600 V (asymmetrical (PE) static), Voltage protection level Up (N-PE) ≤ 1.5 kV, ≤ 600 V asymmetrical (PE) static), Response time tA (L-N) ≤ 25 ns,
   
Compact Class I and II combined
   
NLRF350VAL Replacement Type 1 – plug surge arrester with high-capacity Varistor free of leakage current.
NLRF350ST Replacement thermal spark gap type 1 + 2 unit  for paths L-N and L-PEN(1 in single phase & 3 in three phase)
NLRFN350ST Replacement thermal spark gap and MOV type 1 unit  for path N-PE, can be combined (1 in single phase & 1 in three phase)
NT3-2PES-230AC-RP Type 3 arrester replacement plug (device protection) for 1-phase power supply networks with separate N and PE (3-conductor system: L1, N, PE)
   
DB Mount ISM monitoring Radio
   
NLFCMON-RF1 ISM Radio Frequency Based Transmitter for DB Compact Type 1 and Type 2 Surge Protection Unit for monitoring
   
19 INCH CHASSIS BASED RACK MOUNTABLE SURGE PROTECTION
   
NLMSNMP SNMP (Simple Network Management Protocol) plugging module used in 2U Surge protection System
NLPROV11R2 X.21 Interface Surge Protection / Optical Isolation Module /  Used in 2U Surge Protection Chassis
   
NLPROETH 10/100/1000 Ethernet Surge Protection Interface for Use in 2U Surge Protection Chassis – Gigabit and PoE (Power over Ethernet) ready
NLPROE1 Dual channel E1 interface Surge Protection used in 2U Surge Protection Chassis
NLSP-M20-X21 3U Chassis with 20 slot of mounting of NLPROE1/ X21/ NLPROETH Modules – dual power supplies
NLSP-M20 3U Chassis with 20 slot of mounting of NLPROE1 or NLPROETH Modules
   
WALL-MOUNTABLE SURGE PROTECTION
   
NLSP-ADSL-M Wall-mount Single 2 Wire ADSL/Telephone line and Power surge protection device with protection monitoring
NLSP-E1-M Wall-mount Single 4 Wire E1/ISDN line and Power surge protection device with protection monitoring
NLSP-ETH-M Wall-mount Single 8 Wire10/100/1000BaseT Ethernet and Power surge protection device with protection monitoring; PoE (Power over Ethernet) and Gigabit ready 
   
KRONE BLOCK MOUNTABLE SURGE PROTECTION  
   
NQ-KP1-A Krone Block – 1 Pair Over-voltage & Over-current Surge Arrester
NQ-KP1-B Krone Block – 1 Pair Over-voltage & Over-current Surge Arrester
NQ-KP10-3 Krone Block – Protection Magazine with 3-pole Surge Arrester
NQ-KP10-2 Krone Block – Protection Magazine with 2-pole Surge Arrester
   
Coaxial  
   
NLCOAXPS N type connector Plug to socket surge protection 70VDC/50VAC
NLCUBE BNC Type connector plug to socket surge protection180VDC/130VAC
NLCNUBE N type connector Plug to socket surge protection 180VDC/130VAC