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G.I. PIPE ELECTRODE

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Description

The core of LES brand earthing electrode consists of the various constructions & designs.

Specification

  • The earthing electrodes are duly filled with a highly conductive and non-corrosive compound which safeguards the secondary electrode getting corrode over a long period of time under the soil
  • The compound ensures the easy distribution of leakage/fault current lands on the electrode
  • Both the ends of the electrode are permanently sealed at both ends with the lead terminal at the top with 2 holes on the terminal for connecting to the load/equipment

DUAL PIPE EARTHING – GALVANIZED IRON

Model / Part Number Length
(mm) 		Outer Dia
(mm) 		Inner Dia
(mm) 		Terminal
(mm) 		Pipe
LS 150D 1000 46-50 23-25 32×10 G.I.
LS 250D 2000 46-50 23-25 32×10 G.I.
LS 350D 3000 46-50 23-25 32×10 G.I.
LS 180D 1000 76-80 40-42 50×10 G.I.
LS 280D 2000 76-80 40-42 50×10 G.I.
LS 380D 3000 76-80 40-42 50×10 G.I.
LS 3100D 3000 110-114 47-50 75×10 G.I.

SINGLE PIPE EARTHING – GALVANIZED IRON

Model / Part Number Length
(mm) 		Outer Dia
(mm) 		Terminal
(mm) 		Pipe
LS 150GS 1000 46-50 32×10 G.I.
LS 250GS 2000 46-50 32×10 G.I.
LS 350GS 3000 46-50 32×10 G.I.
LS 180GS 1000 76-80 50×10 G.I.
LS 280GS 2000 76-80 50×10 G.I.
LS 380GS 3000 76-80 50×10 G.I.
LS 3100GS 3000 110-114 75×10 G.I.

RL * – M3R

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Power Supply System Class III Surge Protector

Product introduction

Summary

RL *-M3R is designed as fine protection for electronic devices

  • For installation at LPZ 1-2or higher, applied in SPD Class III (Class D) for power supply system
  • Designed according to IEC 61643-11

Main character

  • Green light indicates normal and red light indicates fault
  • Single phase protection
  • Remote signaling connector for fault indication

Application

  • RL *-M3R provides fine protection for single phase power of low power supply system; e.g. icebox, air conditioner, photocopy, communication equipment, network equipment and so on

Application environment

  • Temperature: -40℃…+80℃
  • Relative humidity: ≦95% (25°C)
Part Number RL 12-M3R RL 24-M3R RL 48-M3R RL 60-M3R RL120-M3R RL230-M3R
Order No. 931001 931002 931003 931004 931005 931006
Nominal a.c voltage (UN) 12V 24V 48V 60V 120V 230V
Rated voltage (max. continuous a.c voltage)(UC) 14V 30V 60V 75V 150V 320V
Rated voltage (max. continuous d.c voltage)(UC) 17V 30V 60V 75V 150V 320V
Nominal load current (IL) 16A 16A 16A 16A 16A 16A
Nominal discharge current (8/20 µs) (L-N)(In) 0.7A 1kA 1kA 2.5kA 2.5kA 3kA
Nominal discharge current (8/20 µs) (L+N-PE)(In) 2kA 2kA 2kA 5kA 5kA 5kA
Combination wave (L-N)(UOC) 2kV 2kV 2kV 6kV 6kV 6kV
Combination wave (L+N-PE)(UOC) 4kV 4kV 4kV 10kV 10kV 10kV
Voltage protection level (L-N)(UP) ≤0.12kV ≤0.2kV ≤0.35kV ≤0.5kV ≤0.7kV ≤1.15kV
Voltage protection level (L/N-PE)(UP) ≤0.56kV ≤0.85kV ≤0.85kV ≤0.85kV ≤0.85kV ≤0.85kV
Response time(L-N)(TA) ≤25ns ≤25ns ≤25ns ≤25ns ≤25ns ≤25ns
Response time(L/N-PE)(TA) ≤100ns ≤100ns ≤100ns ≤100ns ≤100ns ≤100ns
Max. back up fuse 16A gL/gG 16A gL/gG 16A gL/gG 16A gL/gG 16A gL/gG 16A gL/gG
Short-circuit withstand capability at max. Buckup fuse 6kArms 6kArms 6kArms 6kArms 6kArms 6kArms
Operating temperature range(TU) -40℃…+80℃
Cross-sectional area 0.5mm2～6mm2 solid/4 mm2 flexible
Mounting on 35mm DIN rail
Enclosure material Purple thermoplastic UL94-V0
Dimension 1.5 mods
Type of remote signaling contact Break contact
Switching capacity a.c 250V/0.5A
Switching capacity d.c 250V/0.1A,125V/0.2A,75V/0.5A
Cross-sectional area for remote signaling contact Max. 1.5mm2 solid/flexible
Test standards IEC 61643-11
Certification CE (LVD,EMC)

Installation instruction

According to lightning protection zones concept, for installation at LPZ 0A-2 or higher, this surge protector is usually installed in distribution-box or feeder bus of UPS, protecting devices or equipment downstream. Fuse must be installed at the upsteam of the SPD or the lightning protector to make sure that the protected system has double protection. The value of the fuse used in a SPD system should be
conformed to:

  • The value of FUSE should not be larger than the max. withstand capacity of the SPD’s backup fuse value.
  • Under the status of the max. current in the power supply & close loop circuit available current, the fuse should be able to disconnect when overloaded or short-circuited.
  • Take 1 & 2 into consideration, the fuse should be as large as possible to allow the maximum surge discharge of SPD.

Installation steps

  • Mount the SPD on the 35mm DIN rail.
  • Connect conductors, the cross-sectional area of the cable must be larger than 6mm2. The withstand voltage value of the cable is not smaller than AC500V; ensure wiring reliable.
  • If need remote alarm, it should be connected signal lines to remote signal terminal 1 and 2, or 2 and 3 (when normal, 1 and 2 open, 2 and 3 close; when fault, the state is reversed).
  • After above, switch on the power supply and turn on the circuit breaker, if the SPD’s window indicate green, this indicates the unit is operating normally.

Regularly inspect the operating status, especially after lightning. Once the fuse or circuit breaker upstream break or the SPD’s window indicates red, electrician should check/replace the SPD Installation diagram: