Name: MEAN WELL SPD-20HP series: surge protection device - SPD-20HP-480S
Brand: MEAN WELL
SKU: SPD-20HP-480S
Price: 37.46 USD
Availability: InStock

MEAN WELL SPD-20HP series: surge protection device - SPD-20HP-480S

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Description

SPD-20HP-480S — Surge protection device

MEAN WELL SPD-20HP-480S is a thermally protected, series-connected surge protection device for 347–480 VAC, 50/60 Hz LED-lighting installations. It supports up to 5 A continuous load current and 20 kA maximum discharge current on an 8/20 µs waveform, with line-to-ground and line-to-line protection and a replacement-status LED.

Download MEAN WELL SPD-20HP Datasheet (PDF)

SPD-20HP specifications, connection drawing and installation instructions: combined catalog pages 7–10, dated 2023-06-30.

Electrical and surge ratings

Parameter	Details
Complete model / connection	SPD-20HP-480S; SPD-20HP series; series connection in a TN system.
Operating supply	347–480 VAC, 50/60 Hz.
Maximum continuous operating voltage (MCOV / Uc)	510 VAC RMS. This is the maximum voltage that may be continuously applied; it is distinct from temporary-overvoltage and surge-test values.
Maximum continuous load current	5 A. The connected load must stay within this continuous series-path limit.
Measured limiting voltage (MLV)	L–N: 1,400 V; L–G: 1,560 V; N–G: 1,570 V.
Nominal discharge current In	10 kA with an 8/20 µs waveform; the endurance test uses 15 impulses.
Maximum discharge current Imax	20 kA with an 8/20 µs waveform; single-impulse rating, with possible safe operation of the thermal disconnect.
Surge-voltage capability	20 kV capability is stated in the feature list; it does not extend the continuous operating-voltage limit.

Protection and operating conditions

Parameter	Details
Thermal protection	Thermally protected varistors include a built-in thermal disconnect for end-of-life or sustained overvoltage conditions. A maximum-discharge test can safely open this disconnect; the maximum surge rating does not promise continued operation after that event.
Status indication	Green LED ON: the SPD is functional. Green LED OFF: the SPD needs replacement. Check the indicator after energizing; do not treat an unlit indicator as normal operation.
Surge rating definitions	Nominal discharge current In is an endurance rating based on 15 impulses of the 8/20 µs waveform. Maximum discharge current Imax is a single-impulse capability using the same waveform. These are transient ratings, not continuous load-current limits.
Clamping-voltage definitions	MLV is the UL 1449 measured limiting voltage at nominal discharge current, based on residual-voltage measurements over 15 impulses. Up is the IEC 61643-11 voltage protection level derived from the maximum residual-voltage measurement. Apply the separately listed values to the stated protection path.
Operating temperature	−40°C to +75°C.
Ingress protection	IP66, intended for indoor or outdoor installation as stated in the feature list.
Protective earth and application	The catalog specifies surge protection for LED drivers with Class I insulation. Connect the line, neutral and G/PE paths exactly as shown; double-insulated cable construction is not a statement that the completed installation is Class II.

Repetitive surge capability

Parameter	Details
Pulse-rating reference	For an 8 × 20 µs current pulse: 1 strike at 20,000 A; 2 at 15,000 A; 15 at 10,000 A; 100 at 3,000 A; 1,000 at 1,600 A; 10,000 at 650 A; 100,000 at 400 A; 1,000,000 at 240 A. These are the catalog’s repetitive-pulse table values.
Interpretation	These catalog pulse ratings relate to the specified waveform; they are not a guarantee of service life or of continued operation after every maximum surge. The plotted pulse envelope does not override the separately specified product operating-temperature range.

Dimensions and connections

Parameter	Details
Dimensions	71.6 × 67.7 × 32 mm (L × W × H). Drawing tolerances: ±2 mm on the first two dimensions and ±1.5 mm on height.
Mounting geometry	One Ø6.4 ±0.3 mm mounting-hole callout is shown on the flange. The 58.7 ±2 mm reference runs from the body bottom to that hole center; it is not a two-hole spacing. The 18 ±1.5 mm mounting flange may be omitted, as noted in the drawing; verify the supplied configuration.
Input and output cables	Input and output: UL 2586, 16 AWG × 3C, each 200 ±20 mm. Drawing breakout length 40 ±5 mm; stripped ends 5 ±2 mm. Double-insulated cable construction.
Power connections	Connect the supply L, N and G/PE to the marked input; connect the corresponding marked output L, N and G/PE to the LED driver. Keep input and output orientation as shown in this model’s drawing.
Unit mass	243 g per unit, explicitly stated in the catalog packing data; not the gross mass of a box or carton.
Packing reference	6 pieces per box / 1.73 kg; 5 boxes per carton / 9.3 kg gross.

Installation

Parameter	Details
Connection system	Connect in series with the line of a TN system. Follow the model-specific installation diagram.
Before installation	Measure the service voltage with a voltmeter and verify that the selected SPD is suitable. Do not install it if the measured voltage exceeds its rating. The operating-voltage specification for this model is AC; the voltage-check instruction does not establish a DC operating rating.
Power isolation and wiring	Remove power from the electrical system before installation. Verify every connection before energizing. Apply power and confirm that the LED indicator illuminates; an unlit indicator requires service.

Standards

Parameter	Details
Safety standards	UL 1449, Fourth Edition; EAC TP TC 004 approved.
UL assembly type	Type 4 component assembly.
Intended application	Transient-overvoltage protection in outdoor and commercial LED lighting, including roadway, traffic, signage, wall-wash, parking, flood, tunnel and street-lighting applications. Select supply voltage, surge coordination and earthing to suit the installation.