Advanced DC SPD 275V / 255V, 20kA In, Maximum 40kA Imax

• Customization: Available
• Type: Power Source Arrester
• Structure: Zinc Oxide Arrester
• Model NO.: TMSPD7
• Installation: Tandem Arrester
• Application: AC/DC System
• Size: Small
• Operation Voltage: Low Voltage
• Shape: Cuboid
• Material: PBT Fireproof
• Certification: ROHS, ISO9001, CE
• Brand: Timelec
• Uc: 275V / 255V
• In: 20kA
• Imax: 40kA
• Up: 1.5kV
• IEC: IEC61643-11
• IP: IP20
• Protection: Class II, T2
• Transport Package: Carton Box
• Specification: 18mm
• Trademark: Timelec, OEM / Private Label brands
• Origin: China
• HS Code: 853620
• Production Capacity: 1000000
• Package Size: 4.60cm * 7.80cm * 3.60cm
• Package Gross Weight: 0.190kg

Product Description

Product Description

Our SPD Surge Protective Devices are the pinnacle of safeguarding technology, standing ready to defend your precious electronics from the unpredictable wrath of voltage spikes. Imagine a formidable lightning strike that releases an overwhelming surge of energy, potentially causing extensive damage. However, it's crucial to understand that while such large surge events are dramatic, they only account for 20% of all transient surges. A silent, yet significant 80% arise internally, gradually undermining the integrity of sensitive electronic equipment over time. Protect against this persistent threat with our state-of-the-art solution.


A power surge is a brief but intense overload of voltage that can severely threaten electrical devices, frequently leading to their premature failure. These surges are notorious for causing extensive damage, impacting the functionality and longevity of numerous household essentials, including:

• Heating and Air Conditioning Systems
• Washers and Dryers
• Water Heaters
• Ranges & Refrigerators
• Lighting
• Entertainment Systems

NEW 2020 National Electrical Code Requirements
The innovative 2020 National Electrical Code mandates that all new and remodeled homes must be equipped with Listed and Approved Type 1 or Type 2 Surge Protective Devices. This groundbreaking regulation sets a new benchmark for electrical safety and protection.

Type 1:
A permanently connected Surge Protective Device offering robust defense against both external and internal surges. It provides flexible installation options, suitable for either the interior or exterior of your home, ensuring comprehensive protection.

Type 2:
A formidable, permanently connected Surge Protective Device, designed for strategic placement within or near the breaker box. It effectively mitigates both internal and external surge threats, fortifying your home's electrical system.

Type 3:
Offering enhanced protection, the point-of-use Surge Protective Device provides an added layer of defense, especially when combined with Type 1 or Type 2 SPDs. This ensures full compliance with the 2020 code requirements.

For the ultimate in comprehensive protection, utilize a combination of Type 1, 2, and 3 SPDs, ensuring your home is fortified against any and all electrical anomalies with unwavering reliability.

Product Parameters

Max Continuous Operating Voltage				Ucpv	500VDC	600VDC		1000VDC		1500VDC
Nominal Discharge Current				In	20kA	20kA		20kA		20kA
Max Discharge Current				lmax	40kA	40 kA		40kA		40kA
Protection level				Up	2.8kV	3.0kV		3.5kV		5.5 kV
Rated shortcircuit current				IscCI	100A
lcpv					0.2 mA
Connection mode					paralle
Response Time				tA	25ns
Back up fuse					LT-SSD40
Remotecommunication					With
Remote communication connection					1411:NO,1112:NC
Remote contact rated current					220V/0.5A
Associateddisconnectors
Thermal disconnector					internal
Fuses					Fuses type gG100A
ground fault breaker					None
Mechnicalcharacteristics
Connection					By screw terminals:6-35mm
Terminal Screw Torque					2.5 Nm
RecommendedCable cross Section					≥16mm²
Insertwire length					15mm
Mounting					DIN rail 35mm (EN60715)
Degree of Protection					IP20
Housing					PBT
Flame retardant grade					UL94 V0
Operating temperature					-40ºC~+70ºC
Operatingrelative humidity					5%-95%
Working atmospheric pressure					70kPa~106kPa
Connection					By screw terminals:6-35mm

Installation Instructions

Selection of SPD:
Selecting the right Surge Protection Device (SPD) is an essential step in fortifying your power distribution system. To ensure your building's electrical installation is optimally protected, consider the defining characteristics of the lightning protection system.

• SPD
  • Quantity of SPD
  • Type
  • Evaluating the exposure level is vital to determine the SPD's maximum discharge capacity, referred to as Imax.
• Short Circuit Protection Device
  • Maximum discharge current, or Imax;
  • Short-circuit current, or Isc, at the installation point.

Additional key characteristics for SPD selection are generally predetermined for a specific electrical setup.

• Number of poles in SPD;
• Voltage protection level, Up;
• Operating voltage, Uc.

This sub-sectionDesign of the Electrical Installation Protection SystemThis section delves into the comprehensive criteria required for selecting a protection system. It evaluates installation features, the devices needing protection, and the environmental conditions.

Location and Types of SPD:


Connection of SPD:
To achieve optimal protection levels, ensure SPD connections to loads are as brief as possible. This helps reduce the installed voltage protection level (Up) at the equipment's terminals.

Maintain the total length of SPD connections to both the network and the earth terminal block to under 50 cm for maximum efficiency.

SPD Enclosures: Choose between SPD in a plastic or metal enclosure for your specific needs.

 

RED: Replace
A RED indicator signals that the SPD has reached its operational limit and must be immediately replaced to maintain effective protection.