GATEKEEPER SURGE DIVERTERS - 1P1M, 1P3M, 3P3M, Rail
(P-phase, M-mode)
Why do I need a power surge diverter? A power surge or electrical surge is a short duration yet intense increase in voltage that can travel through wiring and cables to your devices and appliances. Surges may be caused due to lightning, power outage, malfunction at the power grid or faulty wiring.
A surge diverter protects your devices from high voltage surges. People generally confuse a surge protector or diverter with a power strip; but they are different. A power strip is only an extension cord with multiple outlets. On the other hand, a surge diverter conducts the excess voltage to the ground protecting your connected devices. The good news is it lasts as long as its life expectancy and will not need replacement after a single surge.
Surge protectors and diverters are especially useful for equipment with sensitive electronic circuits which could get damaged from a surge within a fraction of a second.
Home electronics, computers and office equipment have different surge protection needs. While choosing a surge diverter for your equipment including telephone lines, computer networks and coaxial cables.
Gatekeeper Surge Diverters - Parallel Connected
Manufactured by the LDU Group in Western Sydney NSW Australia, the Gatekeeper surge diverter has been designed to provide high energy surge protection ideal for Class I & II applications. These are also known as a surge arrestor or surge protector.
How does the Gatekeeper Surge Diverter Work?
The Gatekeeper continuously monitors the AC sine wave. Once a surge or spike is detected which exceeds the clamping voltage, the metal oxide varistor (MOV) segment reacts, conducting the excess voltage to ground. The MOV segment will continue to do this until it has reached its life expectancy and expires. The indication on the front of the surge diverter continually monitors the MOV segment and once the MOV expires, the state of the indication changes and the LED extinguishes. If this should occur we recommend you consider changing the SPD at the next maintenance cycle or earlier if possible as the diverter now has a reduced capacity. The expiration of the MOV component will also activate the alarm circuit.
Application
The Gatekeeper Surge Diverter is a low voltage surge protection device (SPD) suitable for applications where transient surge voltage protection is required. It provides protection against surge voltages and surge currents caused by lightning.
The electrical surge diverter is suitable for installation at the service entrance of a building or facility, in the main switchboard, or in a sub-mains switchboard or distribution board. The use of multiple surge diverters will provide the best protection and the surge protection devices should be selected to provide co-ordinated protection.
The Gatekeeper Surge Diverter is better suited to the following applications:
- Category B, major sub-mains, short final sub-circuits and load centres.
- Category C1, service entrance, other than Categories C2 & C3.
- Category C2, service entrance, building fed by long over-head power lines, or is in a large industrial or commercial premises.
- Category C3, service entrance, building in a high lightning area, or fitted with a lightning protection system (LPS).
Single Phase
The Gatekeeper surge diverter is available in 3 sizes: 50kA, 100kA and 150kA. A voltage free alarm contact is a standard feature.
A surge diverter protects your devices from high voltage surges. People generally confuse a surge protector or diverter with a power strip; but they are different. A power strip is only an extension cord with multiple outlets. On the other hand, a surge diverter conducts the excess voltage to the ground protecting your connected devices. The good news is it lasts as long as its life expectancy and will not need replacement after a single surge.
Surge protectors and diverters are especially useful for equipment with sensitive electronic circuits which could get damaged from a surge within a fraction of a second.
Home electronics, computers and office equipment have different surge protection needs. While choosing a surge diverter for your equipment including telephone lines, computer networks and coaxial cables.
Gatekeeper Surge Diverters - Parallel Connected
Manufactured by the LDU Group in Western Sydney NSW Australia, the Gatekeeper surge diverter has been designed to provide high energy surge protection ideal for Class I & II applications. These are also known as a surge arrestor or surge protector.
How does the Gatekeeper Surge Diverter Work?
The Gatekeeper continuously monitors the AC sine wave. Once a surge or spike is detected which exceeds the clamping voltage, the metal oxide varistor (MOV) segment reacts, conducting the excess voltage to ground. The MOV segment will continue to do this until it has reached its life expectancy and expires. The indication on the front of the surge diverter continually monitors the MOV segment and once the MOV expires, the state of the indication changes and the LED extinguishes. If this should occur we recommend you consider changing the SPD at the next maintenance cycle or earlier if possible as the diverter now has a reduced capacity. The expiration of the MOV component will also activate the alarm circuit.
Application
The Gatekeeper Surge Diverter is a low voltage surge protection device (SPD) suitable for applications where transient surge voltage protection is required. It provides protection against surge voltages and surge currents caused by lightning.
The electrical surge diverter is suitable for installation at the service entrance of a building or facility, in the main switchboard, or in a sub-mains switchboard or distribution board. The use of multiple surge diverters will provide the best protection and the surge protection devices should be selected to provide co-ordinated protection.
The Gatekeeper Surge Diverter is better suited to the following applications:
- Category B, major sub-mains, short final sub-circuits and load centres.
- Category C1, service entrance, other than Categories C2 & C3.
- Category C2, service entrance, building fed by long over-head power lines, or is in a large industrial or commercial premises.
- Category C3, service entrance, building in a high lightning area, or fitted with a lightning protection system (LPS).
Single Phase
The Gatekeeper surge diverter is available in 3 sizes: 50kA, 100kA and 150kA. A voltage free alarm contact is a standard feature.
Gatekeeper Product Range
Please visit the Store to purchase online.
SINGLE PHASE, SINGLE MODE, Medium Voltage SPD
MEDIUM VOLTAGE SURGE STATIONS - RAIL TRANPORT INDUSTRY
Please visit the Store to purchase online.
SINGLE PHASE, SINGLE MODE, Medium Voltage SPD
- GKSD1-1000V-70: MV Surge Diverter, 1 Phase, 1000V, 70KA
- GKSD1-1000V-100: MV Surge Diverter, 1 Phase, 1000V, 100KA
- GKSD1-1400V-70: MV Surge Diverter, 1 Phase, 1400V, 70KA
- GKSD1-1400V-100: MV Surge Diverter, 1 Phase, 1400V, 100KA
- GKSD1-2000V-70: MV Surge Diverter, 1 Phase, 2000V, 70KA
- GKSD1-2000V-100: MV Surge Diverter, 1 Phase, 2000V, 100KA
- GKSD1-50: A-N, A-E, N-E 50KA, Alarm
- GKSD1-100: A-N, A-E, N-E 100KA, Alarm
- GKSD1-150: A-N, A-E, N-E 150KA, Alarm
- GKSD1-210: A-N, A-E, N-E 210KA, Alarm
- GKSD1-320: A-N, A-E, N-E 320KA, Alarm
- GKSD1-XXX/DP: Polycarbonate Enclosure
- GKSD1-XXX/RP: Polycarbonate Enclosure
- GKSD3-50: A-N, A-E, N-E 50KA, Alarm
- GKSD3-100: A-N, A-E, N-E 100KA, Alarm
- GKSD3-150: A-N, A-E, N-E 150KA, Alarm
- GKSD3-210: A-N, A-E, N-E 210KA, Alarm
- GKSD3-320: A-N, A-E, N-E 320KA, Alarm
- GKSD3-XXX/P 50-150: Polycarbonate Enclosure GKSD3-50 to 150
- GKSD3-XXX/P 210: Polycarbonate Enclosure GKSD3-210
- GKSD3-XXX/P 320: Polycarbonate Enclosure GKSD3-320
MEDIUM VOLTAGE SURGE STATIONS - RAIL TRANPORT INDUSTRY
- GKSDMVR-1500-70: MV Rail Diverter 1 phase 1000V 70KA
- GKSDMVR-1500-100: MV Rail Diverter 1 phase 1500V 100KA
- GKSD3-1000-70: MV Surge Station 3 phase 1000V 70KA
- GKSD3-1000-100: MV Surge Station 3 phase 1000V 100KA
- GKSD3-1400-70: MV Surge Station 3 phase 1400V 70KA
- GKSD3-1400-100: MV Surge Station 3 phase 1400V 100KA
- GKSD3-2000-70: MV Surge Station 3 phase 2000V 70KA
- GKSD3-2000-100: MV Surge Station 3 phase 2000V 100KA
Gatekeeper GKSD1 SPD
Three Phase
The three phase version of the Gatekeeper surge arrestor is operated the same as the single phase version except it has 3 phases. As with the single phase version, each of the MOV segments are monitored and will extinguish once the MOV segment expires. Again, this event will activate the alarm. The Gatekeeper surge arrestor is available in 3 sizes: 50kA, 100kA and 150kA per phase. Voltage free contacts alarm is a standard feature.
The three phase version of the Gatekeeper surge arrestor is operated the same as the single phase version except it has 3 phases. As with the single phase version, each of the MOV segments are monitored and will extinguish once the MOV segment expires. Again, this event will activate the alarm. The Gatekeeper surge arrestor is available in 3 sizes: 50kA, 100kA and 150kA per phase. Voltage free contacts alarm is a standard feature.
Gatekeeper GKSD3 SPD
Heavy Duty: Single and Three Phases
The Gatekeeper surge arrestor 210 and 320 operates on a similar principle as the smaller units; however these SPD's have phase monitoring only with a single LED indicator for each phase. The label is a multifunction label which can be used on either a single phase SPD or a three phase SPD. The indication monitors the state of the MOVs in each phase and when a MOV expires then the indication extinguishes. Once the indication has extinguished we recommend you change the SPD ASAP as the protection for that phase has expired. The expiration of the protection will also change the state of the alarm causing it to activate.
Voltage free alarm contacts are a standard feature.
The Gatekeeper surge arrestor 210 and 320 operates on a similar principle as the smaller units; however these SPD's have phase monitoring only with a single LED indicator for each phase. The label is a multifunction label which can be used on either a single phase SPD or a three phase SPD. The indication monitors the state of the MOVs in each phase and when a MOV expires then the indication extinguishes. Once the indication has extinguished we recommend you change the SPD ASAP as the protection for that phase has expired. The expiration of the protection will also change the state of the alarm causing it to activate.
Voltage free alarm contacts are a standard feature.
Gatekeeper GKSD3-210 SPD
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Gatekeeper GKSD3-320 SPD
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GKSD SURGE DIVERTER (SPD) PRODUCT – DATA SHEET
Description
The Gatekeeper range manufactured by LDU Applied Technologies has been designed to provide high-energy surge protection for single and three phase power circuits. Being full 3 mode or 10 mode devices, the diverters have been designed for mounting at main power switchboards, major distribution boards or sub-boards and should be installed in front of any surge filters or UPS to maximize the protection offered to the load. 10-year manufacturer’s warranty.
The Gatekeeper range manufactured by LDU Applied Technologies has been designed to provide high-energy surge protection for single and three phase power circuits. Being full 3 mode or 10 mode devices, the diverters have been designed for mounting at main power switchboards, major distribution boards or sub-boards and should be installed in front of any surge filters or UPS to maximize the protection offered to the load. 10-year manufacturer’s warranty.
Gatekeeper GKSD1 SPD
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Gatekeeper GKSD3 SPD
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Gatekeeper GKSD3-210 SPD
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Gatekeeper GKSD3-320 SPD
Features:
· Low let-through voltage
· High surge current capabilities per phase
· Internal fusing
· Full status, power, individual segmental & thermal indication
· Multiphase Sine wave Tracking Technology (MSTT)
· Full multimode protection
· Full metal Housing
· Low let-through voltage
· High surge current capabilities per phase
· Internal fusing
· Full status, power, individual segmental & thermal indication
· Multiphase Sine wave Tracking Technology (MSTT)
· Full multimode protection
· Full metal Housing
Data Sheet
