DC SPD Surge Protection Device, 275V/255V, 20kA In, 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 stand as the ultimate guardians against transient surge conditions, designed with precision to shield your valuable electronics from the unpredictable fury of voltage spikes. Large single surge events, such as the formidable lightning strike, can unleash hundreds of thousands of volts, potentially wreaking havoc on equipment. Yet, remarkably, lightning and utility power anomalies make up only 20% of transient surges. The silent majority, a staggering 80%, originate internally. These may not possess the might of a lightning bolt, but their frequency and persistence gradually erode sensitive electronic equipment within your facility.


A power surge is a fleeting overload of voltage that poses a substantial threat to electrical devices, often leading to their untimely demise. The devastation caused by surges extends across a range of household essentials, impacting and shortening the lifespan of:

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

NEW 2020 National Electrical Code Requirements
According to the groundbreaking 2020 National Electrical Code, all new and renovated homes must be safeguarded by Listed and Approved Type 1 or Type 2 Surge Protective Devices, ensuring a new standard of protection.

Type 1:
Permanently connected Surge Protective Device, a robust shield against both external and internal surges. Offers versatile installation options for either the interior or exterior of your home.

Type 2:
This is a powerful, permanently connected Surge Protective Device strategically placed within or adjacent to the breaker box, designed to combat both internal and external surges.

Type 3:
Enhanced protection with point-of-use Surge Protective Device, offering an extra layer of defense when paired with Type 1 or Type 2 SPDs, in full compliance with the 2020 code requirements.

For unparalleled protection, employ a combination of Type 1, 2, and 3 SPDs to ensure your home is fortified against any electrical anomaly.

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:
When selecting a Surge Protection Device (SPD) for your power distribution system, it is crucial to consider key characteristics that define the lightning protection system. This ensures that the electrical installation within a building is effectively safeguarded.

• SPD
  • Quantity of SPD
  • Type
  • Assessing the level of exposure to determine the SPD's maximum discharge current, known as Imax, is a critical factor.
• Short Circuit Protection Device
  • Maximum discharge current, or Imax;
  • Short-circuit current, or Isc, at the installation point.

Other essential characteristics for selecting an SPD are usually predefined for a specific electrical installation.

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

This sub-section Design of the Electrical Installation Protection System This section provides an in-depth exploration of the criteria for selecting a protection system. It takes into account the installation characteristics, the equipment that requires protection, and the surrounding environment.

Location and Types of SPD:


Connection of SPD:
Ensure that SPD connections to loads are kept as short as possible. This minimizes the voltage protection level (installed Up) at the terminals of the equipment being protected.

The total length of SPD connections to both the network and the earth terminal block should remain under 50 cm.

SPD Enclosures: Options include SPD in a plastic enclosure or SPD in a metal enclosure.

 

RED: Replace
When the indicator turns RED, it signifies that the product has reached its limit and must be replaced immediately for continued protection.