SPDs coordination

Prime Power Solutions has a comprehensive line of surge protective devices to meet your needs, regardless of the risk of exposure.

Our innovative, reliable surge protection solutions help reduce costly downtime by protecting sensitive electrical and electronic equipment against the damaging effects of transients. They're also designed and tested in accordance with IEEE and UL® standards1 and built in an ISO 9001 facility.

• IEEE Std 142 Grounding of Industrial and Commercial Power Systems
• IEEE Std 1100 IEEE Recommended Practice for Powering and Grounding Electronic Equipment
• IEEE Std C62.41.1 Guide on the Surge Environment in Low-Voltage (1000 V and less) AC Power Circuits
• ANSI/IEEE Std C62.41.2 Recommended Practice on characterization of Surges in Low-Voltage (1000 V and less) AC Power Circuits
• IEEE Std C62.45 Recommended Practice on Surge Testing for Equipment Connected to Low-Voltage (1000 V and Less) AC Power Circuits
• IEEE Std C62.47 IEEE Guide on Electrostatic Discharge (ESD): Characterization of the ESD Environment
• IEEE Std C62.48 Guide on Interactions Between Power System Disturbances and Surge Protective Devices
• IEEE Std C62.62 Test Specifications for Surge-Protective Devices (SPDs) for Use on the Load Side of the Service Equipment in Low-Voltage (1000 V and Less) AC Power Circuits
• ANSI/IEEE Std C62.72 Guide for the Application of Surge-Protective Devices for Low-Voltage (1000 V or Less) AC Power Circuits
• NFPA 70 (NEC) Article 285
• NFPA 780 Standard for the Installation of Lightning Protection Systems
• ANSI/UL 1449

Prime Power Solutions' SPDs are independently tested and backed by the best engineering and technical support team in the industry. They're tested to meet the latest UL and other agency standards and many have a nominal discharge current of 20 kA, the highest achievable rating for this parameter indicating device robustness.

Cooperation of SPD that can protect against direct lightning

Do I have enough lightning / surge protection if I install an SPD on the power line of an important device that I need to protect?
Absolutely not. You must consider the cooperation of the SPDs.

Although the surge caused by internal surge or indirect lightning can be prevented, the inflow of direct lightning in the integrated grounding environment cannot be prevented by simple SPD installation.
The installer should identify each route through which the lightning strikes and install the necessary SPDs in stages. Installing everything is not perfect. Coordination must be calculated and installed. If cooperation is not taken into account, the direct lightning can cause the small SPD of the end device to run

The best way to prevent downtime due to an electrical surge is to develop and execute a facility-wide cascaded surge protection strategy. This requires understanding the exposure risks across your electrical distribution system per the IEEE® C62.44.1 standard:

• High exposure (Category C) at service entrances
• Medium exposure (Category B) at distribution panels
• Low exposure (Category A) at point-of-use equipment

Installing appropriately rated surge protection at each location throughout your facility provides a layered defense solution and helps ensure complete protection of critical equipment.

Item	Recommended Specification
ANSI/IEEE C62.41	CAT C	CAT B		CAT A		Equipment
IEC61643-11	Type I		Type II		Type III	TPMOV
Direct Lighting Surge Current	limp 6.5 ~ 100kA [10/350㎲]		-		-	-
Indirect Lighting Surge Current	In 6.5 ~ 100kA [8/20㎲]		In 10 ~ 40kA [8/20㎲]		~ 20kV [1.2/50㎲] / 10kA [8/20㎲]
Product series	PS1 series	SB+PS1 series	PS2 series	SB+PS2 series	SB series	PVR series
Mount	Din-rail	Wall-mount	Din-rail	Wall-mount	Din-rail / Wall-mount	Built in
Size : W x D xH mm (inch)	144 x 90 x 68 (2.83 x 3.54 x 2.68)	170 x 240 x 94 (6.77 x 9.45 x 3.7)	72 x 90 x 68 (2.83 x 3.54 x 2.68)	127 x 172 x 83 (5x6.77 x 3.27)	85 x 105 x 45 (3.35 x 4.13 x 1.77)	41 x 17.5 x 41.5 (1.61 x 0.69 x 1.63)

Cooperation of SPD that can protect against direct lightning

Each option can be selected according to the installation environment. Technical review is required. It is not necessary to have all the functions. Have the right options for your installation. It can be equipped with remote monitoring system as needed and it can be upgraded intelligently to build surge protection system with automatic self-diagnosis program. Use an intelligent self-diagnostic surge protection system to monitor. System program can be provided.

Item	Recommended Specification
Product series	PS1 series	SB+PS1 series	PS2 series	SB+PS2 series	SB series	PVR series
Basic	Flag Indicator Internal TPMOV Busbar/Ring-terminal	Wall-mount	Din-rail	Wall-mount	Din-rail / Wall-mount	Built in
Options	Remote contact	Remote contact Surge counter MODBUS & RS485 monitoring Ethernet onitoring End-of-life pre indicator Busbar/Ring-terminal	Remote contact	Remote contact Surge counterMODBUS & RS485 monitoring Ethernet monitoring End-of-life pre indicator Busbar/Ring-terminal	LED indicator Remote contact Internal TPMOV	Flag Indicator Remote contact

The SPD Series offers the most advanced surge protection with many features, options and configurations. There are two installation methods. Electrical panel internal assembly or direct external mounting. There are a few things to consider when installing. It should be installed as short as possible from the protection target, and should be installed as close as possible to the power branch line.

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