DC SPD Surge Protector 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: 7.80cm * 8.00cm * 5.90cm
• Package Gross Weight: 0.200kg

Product Description

Product Description

SPD Surge Protective Devices are meticulously engineered to shield your valuable assets from transient surge conditions. These devices stand as your first line of defense against devastating surge events such as lightning, which can unleash voltages in the hundreds of thousands, potentially causing immediate or sporadic equipment malfunctions. While lightning and utility power irregularities account for just 20% of transient surges, the majority, a staggering 80%, originate internally. Though these internally generated surges may exhibit lower magnitudes, their frequent occurrence poses a significant threat, progressively compromising the integrity of sensitive electronics throughout your facility.


A power surge is a fleeting overvoltage incident capable of inflicting severe damage to electrical devices, often leading to electrical equipment failures. Such surges can inflict harm and diminish the operational lifespan of the following:

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

NEW 2020 National Electrical Code Requirements
In accordance with the 2020 National Electrical Code, all newly constructed and renovated homes must incorporate Listed and Approved Type 1 or Type 2 Surge Protective Devices to ensure comprehensive surge protection.

Type 1:
This type features a permanently connected Surge Protective Device, designed to safeguard against both external and internal surges. Versatile in its deployment, it can be installed either inside or outside the home.

Type 2:
A permanently connected Surge Protective Device, positioned in or adjacent to the breaker box, offering protection against both internal and external surges.

Type 3:
Providing extra protection, this Point-of-use Surge Protective Device is essential for full compliance with 2020 code requirements when used in conjunction with Type 1 or Type 2 SPDs.

For the ultimate protection, utilize a combination of Type 1, Type 2, and Type 3 SPDs, ensuring a robust defense against any surge-related threats.

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:
For an effective power distribution system, the primary factors that define the lightning protection system and guide the selection of a superior SPD to safeguard electrical installations within a building include:

• SPD
  • Quantity of SPD required
  • Type of SPD
  • The level of exposure which determines the SPD's maximum discharge current, known as Imax.
• Short Circuit Protection Device
  • The maximum discharge current, Imax;
  • The short-circuit current, Isc, at the specific point of installation.

Additional selection characteristics for a SPD are predetermined for any electrical installation.

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

This Sub-section Designing the Electrical Installation Protection System This section delves deeper into the crucial criteria for selecting a protection system in alignment with installation characteristics, equipment to be safeguarded, and environmental conditions.


Connection of SPD:
SPD connections to the loads should be as brief as possible to minimize the voltage protection level value (installed Up) at the terminals of the protected equipment.

Ensure the total length of SPD connections to both the network and earth terminal block does not surpass 50 cm.

SPD in Plastic Enclosure SPD in Metal Enclosure

 

RED: Replace
If the indicator displays RED, it signifies the product must be replaced immediately.

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