Efficient DC SPD 275V 255V, 20kA In with 40kA Imax Capability

• 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 ultimate sentinels, crafted meticulously to protect your invaluable electronics from the capricious wrath of voltage spikes. When large single surge events occur, such as the imposing lightning strike, they can unleash torrents of volts, posing a severe threat to your equipment. Yet, astonishingly, only 20% of these transients are caused by lightning and utility power anomalies. The remaining 80%, a silent yet potent majority, originate internally. While these may lack the sheer force of lightning, their relentless frequency insidiously wears down delicate electronic systems within your domain.


A power surge is a transitory spike in voltage that poses a significant risk to electrical devices, often leading to their premature failure. The havoc wreaked by surges extends to a spectrum of household essentials, impacting and curtailing the longevity of:

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

NEW 2020 National Electrical Code Requirements
In a groundbreaking mandate, the 2020 National Electrical Code asserts that all newly constructed and renovated homes must be shielded by Listed and Approved Type 1 or Type 2 Surge Protective Devices, ushering in a new era of protection standards.

Type 1:
This is a permanently connected Surge Protective Device, serving as a formidable defense against both external and internal surges. It provides adaptable installation options for the interior or exterior of your residence.

Type 2:
A robust, permanently affixed Surge Protective Device placed strategically within or adjacent to the breaker box, engineered to counteract both internal and external surges.

Type 3:
Augment protection with a point-of-use Surge Protective Device, delivering an additional layer of defense when used in conjunction with Type 1 or Type 2 SPDs, fully aligning with the 2020 code stipulations.

For comprehensive protection, it is recommended to utilize a combination of Type 1, 2, and 3 SPDs, ensuring your residence is safeguarded against any electrical incident.

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 of paramount importance to consider the key characteristics integral to the lightning protection system. This ensures the electrical installation within your building is safeguarded with maximum effectiveness.

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

Other essential characteristics for selecting an SPD are usually predefined for a specific electrical setup, ensuring a tailored and effective protection strategy.

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

This sub-sectionDesign of the Electrical Installation Protection SystemThis section delves deeply into the criteria necessary for selecting a protection system. It considers installation characteristics, the specific equipment needing protection, and the surrounding environmental factors.

Location and Types of SPD:


Connection of SPD:
Ensure SPD connections to loads are minimized in length. This practice effectively reduces the voltage protection level (installed Up) at the equipment terminals, enhancing protection efficiency.

The aggregate length of SPD connections to both the network and the earth terminal block should not exceed 50 cm for optimal performance.

SPD Enclosures: You have the option between SPD in a robust plastic enclosure or SPD in a durable metal enclosure.

 

RED: Replace
When the indicator turns RED, this indicates that the product has reached the end of its effective life and requires immediate replacement to ensure continuous protection.