CCTV & Security Surge Protection
CCTV and security systems are widely used in factories, warehouses, buildings, transportation facilities, energy sites and outdoor areas. Cameras, network cables, power supplies and control equipment are often installed across long distances, making the system vulnerable to lightning-induced surges. A complete protection design should cover camera power supply, network transmission lines, control lines and central monitoring equipment.
Outdoor camera network/PoE lines
Installed in-line near the camera to protect network and PoE ports.
Signal & Data SPD
Uc(V) :
8V
Un(V) :
5V
In (8/20 μs):
10kA
Imax(8/20 μs):
20kA
Reference Standards:
IEC 61643-21OEM/ODM Acceptable
Additional Function:
Thermal Tripping Protection, Status Indicator, and Remote SignalingNetwork ports for pole-mounted cameras/PTZ cameras
Outdoor elevated equipment is more susceptible to induced lightning surges.
CCTV & Security SPD
Uc(V) :
DC40V/AC320V
Un(V) :
DC24V/AC220V
In (8/20 μs):
10kA
Imax(8/20 μs):
20kA
Reference Standards:
IEC61643OEM/ODM Acceptable
Additional Function:
Thermal Tripping Protection, Status Indicator, and Remote SignalingPower input for surveillance cabinets
Protects NVRs, switches, and power modules.
AC Power SPD->Type 2 / Class ll
Uc:
AC385V/420V/440V
In (8/20 μs):
20kA
Imax(8/20 μs):
40kA
Mode of Protection:
L/N-PE; L-N, N-PEReference Standards:
IEC 61643-11OEM/ODM Acceptable
Additional Function:
Thermal Tripping Protection, Status Indicator, and Remote SignalingSignal boxes for access control/perimeter security
Protects 24V/analog signal lines for access control, alarms, and control systems.
Signal & Data SPD
Uc(V) :
15V/30V/60V
Un(V) :
12V/24V/48V
In (8/20 μs):
5kA
Imax(8/20 μs):
10kA
Reference Standards:
IEC 61643-21OEM/ODM Acceptable
Additional Function:
Thermal Tripping Protection, Status Indicator, and Remote SignalingControl boxes for vehicle barriers/auxiliary power supplies
Protects both AC power and control signals.
AC Power SPD->Type 2 / Class ll
Uc:
AC385V/420V/440V
In (8/20 μs):
20kA
Imax(8/20 μs):
40kA
Mode of Protection:
L/N-PE; L-N, N-PEReference Standards:
IEC 61643-11OEM/ODM Acceptable
Additional Function:
Thermal Tripping Protection, Status Indicator, and Remote SignalingSolutions
Different systems require different SPD types, voltage levels, wiring structures and installation positions. Select your application scenario to view the recommended protection strategy.FAQ
Can CRESIN provide SPD for PoE security systems?
Yes. CRESIN can provide Ethernet and PoE surge protective devices for IP cameras, network switches, and security monitoring systems.
Where should CCTV SPD be installed?
SPD should be installed near outdoor cameras, at cable entry points, near network switches, and close to protected monitoring equipment when necessary. When choosing CCTV SPD, both power and signal lightning protection must be taken into consideration simultaneously.
Do analog CCTV systems need different SPD?
Yes. Analog CCTV systems may require video signal SPD, power SPD, or control line SPD depending on the wiring structure.
What type of SPD is used for IP cameras?
IP cameras usually require Ethernet SPD, especially when installed outdoors or connected through long network cables. If PoE is used, the SPD should support PoE transmission.
What devices in CCTV systems need surge protection?
IP cameras, analog cameras, network switches, NVRs, DVRs, power supplies, control systems, and outdoor monitoring equipment may require surge protection.
Why do CCTV and security systems need surge protection?
CCTV and security systems often use outdoor cameras, long network cables, power lines, and control lines. These cables can introduce lightning-induced surges into cameras, recorders, switches, and monitoring equipment.
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The product range includes production technologies for smart capacitors, digital display meters, surge protectors, dedicated backup protection devices for surge protectors, self-resetting over/under-voltage protectors, control and protection switches, and automatic transfer switches for dual power supplies.
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