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Mean Well SPD-20HP-277S Surge Protection Device 120~277VAC 20KV

10/20kA surge protection deviceline to ground and line to line protectedIP66/67 design for indoor and outdoor installations

SKU SPD-20HP-277S

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Overview

SPD-20HP thermally protected Surge Protective Device is a self-protected device which is specially designed to be used in outdoor and commercial LED lighting fixtures for transient overvoltage protection. It is constructed with thermally protected varistor technology. Its built-in thermal disconnect function provides additional protection to prevent catastrophic failure and fire hazard even under the extreme circumstances of varistor end-of-life or sustaining over voltage conditions. The SPD-20HP provides coordinated surge protection with more LED drivers than other SPDs due to its exceptionally low Measured Limiting Voltage (MLV) and Voltage Protection Level (UP). This lower clamping voltage can also help to extend the life-time of the luminaire. It also features a built-in LED indicator that notifies when replacement of the module is needed.

Features

Series connection style
UL1449 type 4 component assemblies
Line to Ground & Line to Line protected
20kA maximum discharge current(Iₘₐₓ), 8/20μs
Low MLV/UP
Thermally protected
Double insulation cable wire
LED status indicator
IP66 design for indoor or outdoor installations
Suitable for LED driver surge protection with classⅠ insulation
20KV surge protection capability

Specifications

SPD-20HP-277SSpecifications from the official datasheet (2023-06-30 edition)

SPECIFICATION

OPERATING VOLTAGE: 120 ~ 277VAC 50/60Hz
MCOV/UC (MAX. CONTINUOUS OPERATING VOLTAGE)^Note.1: 320VAC
CONTINUOUS CURRENT (max.): 5A
MLV (MEASURED LIMITING VOLTAGE)^Note.2: L-N: 810V L-G: 1560V N-G: 1570V
UP (VOLTAGE PROTECTION LEVEL)^Note.3: L-N: 1000V L-G/PE: 3800V N-G/PE: 2900V
In(NOMINAL DISCHARGE CURRENT)^Note.4: 10kA, 8/20μs
Imax. (MAX. DISCHARGE CURRENT)^Note.5: 20kA, 8/20μs
OPERATING TEMPERATURE: -40 ~ +75℃
SAFETY STANDARDS: UL1449(Fourth Edition), BS EN/EN61643-11, EAC TP TC 004 approved
DIMENSION: 71.6*67.7*32 (L*W*H)
PACKING: 0.233Kg/Unit ; 1.67Kg/one box(6pcs); 9Kg/carton(including 5 boxs)

SPECIFICATION for SPD-20HP-277S only

Temporary Overvoltage (V) TOV UT @ tT = 5s: Parameter Standard

403VAC LV System Fault for TN power Grid
Temporary Overvoltage (V) TOV UT @ tT = 120 min.: Parameter Standard

529VAC LV System Fault for TN power Grid
Power grids: TN
Backup fuse (A): Parameter Standard

21A Maximum gG Fuse
End of life indication: Parameter Standard

Yes Optical Light ON: SPD is functional Light OFF: SPD has reached end-of-life
Max earth leakage current at Uc (μA): 50
IEC 61643-11 Test Classification: Test Class II and III
BS EN/EN61643-11 Type Classification: Type 2 and 3
UL 1449 Type: 4CA

Parameter	Standard
403VAC	LV System Fault for TN power Grid

Parameter	Standard
529VAC	LV System Fault for TN power Grid

Parameter	Standard
21A	Maximum gG Fuse

Parameter	Standard
Yes	Optical Light ON: SPD is functional Light OFF: SPD has reached end-of-life

Certifications & ratings

Outdoor: IP66
Marked features: Streetlight

Test conditions and notes5

1. MCOV/UC: Maximum Continuous Operating Voltage - maximum r.m.s. voltage that could be continuously applied to the SPD.
2. MLV: UL1449 Measured limiting voltage; the highest value of residual voltage measurements during the application of impulses of 8/20μs nominal discharge current (In); an average voltage value of 15 impulses.
3. UP : IEC 61643-11 Voltage protection level; the highest value of residual voltage measurements during the application of impulses of 8/20μs nominal discharge current(In); a rounding voltage value of maximum measurement.
4. Nominal Discharge Current In (A): The nominal discharge current is a measure of the SPDs endurance capability; 15 impulses of discharge current uses the 8/20μs current waveform.
5. Maximum Discharge Current Imax (A): The maximum discharge current is a measure of the SPDs maximum capability; single impulse of discharge current uses the 8/20μs current waveform. All Devices pass maximum discharge current with possible, safe opening of thermal disconnect.

Technical drawings

SPD-20HP-277S Installation Diagram — Installation Diagram

SPD-20HP-277S Mechanical Specification — Mechanical Specification

SPD-20HP-277S S P D - 2 0 H P series — S P D - 2 0 H P series

Typical applications

Downloads

Certificates5

Mean Well E353892-UL Certificate PDF Download

Mean Well SPD-20HP-DEKRA Certificate PDF Download

Mean Well SPD-20HP-CE-dec Certificate PDF Download

Mean Well SPD-20HP-UK-dec Certificate PDF Download

Mean Well SPD-20HP-LVD Certificate PDF Download

Catalogues1

Mean Well Catalog (Industrial) PDF Download

FAQ

What does the Mean Well SPD-20HP-277S do?

The SPD-20HP-277S is a surge protection device designed to help protect LED driver applications from electrical surges. This model is rated for 120~277VAC systems and offers up to 20KV surge protection capability.

What surge rating does the SPD-20HP-277S provide?

This model has a maximum discharge current of 20kA (Imax) with an 8/20μs waveform rating. It is also described with 20KV surge protection capability for demanding LED driver protection applications.

Is the SPD-20HP-277S suitable for outdoor environments?

Yes, the SPD-20HP-277S features an IP66 design for indoor or outdoor installations. It is also rated for operation from -40°C to 75°C, which supports use in harsh environments.

How can I tell if the SPD-20HP-277S needs servicing?

This surge protection device includes an LED status indicator. The indicator illuminates when the unit is functional and turns off when the SPD has reached end-of-life and needs replacement.

What applications is the SPD-20HP-277S compatible with?

The SPD-20HP-277S is suitable for LED driver surge protection with Class I insulation. Its 120~277VAC rating makes it relevant for commercial and industrial lighting power environments within that voltage range.

What safety and construction features distinguish the SPD-20HP-277S?

This model is listed as a UL1449 type 4 component assembly and includes thermal protection. It also features double insulation cable wire construction, which supports durability in protected lighting system applications.

Payment & Security

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Model	Current	Connection
Mean Well SPD-20HP-480S Surge Protection Device 347~480VAC 20KV	—	Series	View

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