SolaHD HSP-121A - Three Stage Power Line Protector, Operating Voltage: 120 VAC, Clamping Voltage: 325 VAC, Operating Current: 15 Amps, Peak Surge Current: 13kA / Mode, 26kA / Phase, Operating Frequency 47-63 Hz
SolaHD

HSP-121A

UPC: 630898019428

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Overview

The SolaHD HSP-121A Three Stage Power Line Protector is a compact, industrial-grade surge protection device designed for 120 VAC systems operating at 47-63 Hz. Rated for 15 A continuous current, it safeguards sensitive downstream equipment by clamping transient voltages to a maximum of 325 VAC using a three-stage protection mechanism. With peak surge current ratings of 13 kA per mode and 26 kA per phase, the HSP-121A provides robust defense against lightning-induced surges, switching transients, and other voltage spikes common in industrial environments. Built for reliability in harsh conditions, this protector features high-temperature components and a rugged construction suitable for control panels, motor drives, and critical power distribution points. Its compact design allows for easy integration into existing industrial enclosures without requiring excessive space. The device meets UNSPSC code 43222901, ensuring compatibility with standard industrial procurement systems. Key applications include protecting PLCs, automation systems, variable frequency drives (VFDs), and other sensitive electronics in factories, warehouses, and utility facilities. Unlike basic surge strips, the HSP-121A is engineered for continuous operation in industrial power systems, offering dependable protection without compromising line performance. For facilities where uptime is critical, this protector helps extend equipment lifespan and reduce costly downtime caused by power anomalies.
  • 120 VAC operating voltage for standard industrial systems
  • 15 A continuous current rating with 325 VAC clamping voltage
  • Peak surge current: 13 kA per mode, 26 kA per phase
  • Three-stage protection mechanism for rapid transient suppression
  • Compact design for easy integration into control panels and enclosures

Specifications

Amperage Rating
400 A
Application
Water and Wastewater Industries
Brand Name
SolaHD
Clamping Voltage
325 VAC
Connector
Term blk w/ comp. screws
Current Rating
15 A
Enclosure
Polycarbonate NEMA 4X Enclosure
Frequency
47-63 Hz
Frequency Rating
47-63
Height
3 IN
Length
4.95 IN
Mounting
Encapsulated in Stainles Steel Pipe Nipple
Noise Level
40 dB
Peak Surge Current
13kA / Mode, 26kA / Phase
Power Supply
15
Response Time
< 1 NS
Special Features
Automatic Recovery , Sneak/fault current protection, Resettable fusing, Transient Protection for low-voltage signal lines, Protection for one signal pair
Standard
UL 1449 listed
Style
Three-stage power line protector
Sub Brand
Edco
Type
Surge Suppressor
Voltage Rating
120 VAC
Voltage Rating
28 V
Width
2.95 IN
Package Dimensions (L x W x H)
9.3 IN x 4.5 IN x 3.6 IN
Package Dimensions (L x W x H)
23.622 cm x 11.43 cm x 9.144 cm
Package Weight (Imperial)
1.200 L
Package Weight (Metric)
0.544 kg
Three Stage Power Line Protector, Operating Voltage: 120 VAC, Clamping Voltage: 325 VAC, Operating Current: 15 Amps, Peak Surge Current: 13kA / Mode, 26kA / Phase, Operating Frequency 47-63 Hz

HSP-121BT1RU

Three Stage Power Line Protector, Operating Voltage: 120 VAC, Clamping Voltage: 325 VAC, Operating Current: 15 Amps, Peak Surge Current: 13kA / Mode, 26kA / Phase, Operating Frequency 47-63 Hz
STFV Plus Series Actibe Tracking with Surge Protection, Amps:15.0, Min Wire Size: 14 AWG, Single Phase, 120 Vac, Screw Size: #8, Fuse/Circuit Breaker Ampacity: Suggested - 15 A, Maximum 18.75 A

STFV150-10N

STFV Plus Series Actibe Tracking with Surge Protection, Amps:15.0, Min Wire Size: 14 AWG, Single Phase, 120 Vac, Screw Size: #8, Fuse/Circuit Breaker Ampacity: Suggested - 15 A, Maximum 18.75 A
STFV Plus Series Actibe Tracking with Surge Protection, Amps:15.0, Min Wire Size: 14 AWG, Single Phase, 240 Vac, Screw Size: #8, Fuse/Circuit Breaker Ampacity: Suggested - 15 A, Maximum 18.75 A

STFV150-24L

STFV Plus Series Actibe Tracking with Surge Protection, Amps:15.0, Min Wire Size: 14 AWG, Single Phase, 240 Vac, Screw Size: #8, Fuse/Circuit Breaker Ampacity: Suggested - 15 A, Maximum 18.75 A
STFE Elite Series Active Tracking Filers with Surge Protection, Input Voltage: 120 V (0-150 Vms), Line Frequency: 47-63 Hz, Amps: 10.0, Min Wire Size: 20 AWG

STFE100-10N

STFE Elite Series Active Tracking Filers with Surge Protection, Input Voltage: 120 V (0-150 Vms), Line Frequency: 47-63 Hz, Amps: 10.0, Min Wire Size: 20 AWG
STFE Elite Series Active Tracking Filers with Surge Protection, Input Voltage: 120 V (0-150 Vms), Line Frequency: 47-63 Hz, Amps: 20.0, Min Wire Size: 12 AWG

STFE200-10N

STFE Elite Series Active Tracking Filers with Surge Protection, Input Voltage: 120 V (0-150 Vms), Line Frequency: 47-63 Hz, Amps: 20.0, Min Wire Size: 12 AWG
STFV Plus Series Actibe Tracking with Surge Protection, Amps: 7.5, Min Wire Size: 18 AWG, Single Phase, 120 Vac, Screw Size: #6, Fuse/Circuit Breaker Ampacity: Suggested - 7.5 A, Maximum 6.25 A

STFV075-10N

STFV Plus Series Actibe Tracking with Surge Protection, Amps: 7.5, Min Wire Size: 18 AWG, Single Phase, 120 Vac, Screw Size: #6, Fuse/Circuit Breaker Ampacity: Suggested - 7.5 A, Maximum 6.25 A
STFV Plus Series Actibe Tracking with Surge Protection, Amps: 5.0, Min Wire Size: 22 AWG, Single Phase, 120 Vac, Screw Size: #6, Fuse/Circuit Breaker Ampacity: Suggested - 5 A, Maximum 6.25 A

STFV050-10N

STFV Plus Series Actibe Tracking with Surge Protection, Amps: 5.0, Min Wire Size: 22 AWG, Single Phase, 120 Vac, Screw Size: #6, Fuse/Circuit Breaker Ampacity: Suggested - 5 A, Maximum 6.25 A
STFE Elite Series Active Tracking Filers with Surge Protection, Input Voltage: 240 V (0-275 Vms), Line Frequency: 47-63 Hz, Amps: 5.0, Min Wire Size: 22 AWG

STFE050-24L

STFE Elite Series Active Tracking Filers with Surge Protection, Input Voltage: 240 V (0-275 Vms), Line Frequency: 47-63 Hz, Amps: 5.0, Min Wire Size: 22 AWG
STFE Elite Series Active Tracking Filers with Surge Protection, Input Voltage: 240 V (0-275 Vms), Line Frequency: 47-63 Hz, Amps: 20.0, Min Wire Size: 12 AWG

STFE200-24L

STFE Elite Series Active Tracking Filers with Surge Protection, Input Voltage: 240 V (0-275 Vms), Line Frequency: 47-63 Hz, Amps: 20.0, Min Wire Size: 12 AWG
STFE Elite Series Active Tracking Filers with Surge Protection, Input Voltage: 240 V (0-275 Vms), Line Frequency: 47-63 Hz, Amps: 3.0, Min Wire Size: 24 AWG

STFE030-24L

STFE Elite Series Active Tracking Filers with Surge Protection, Input Voltage: 240 V (0-275 Vms), Line Frequency: 47-63 Hz, Amps: 3.0, Min Wire Size: 24 AWG
STFE Elite Series Active Tracking Filers with Surge Protection, Input Voltage: 120 V (0-150 Vms), Line Frequency: 47-63 Hz, Amps: 5.0, Min Wire Size: 22 AWG

STFE050-10N

STFE Elite Series Active Tracking Filers with Surge Protection, Input Voltage: 120 V (0-150 Vms), Line Frequency: 47-63 Hz, Amps: 5.0, Min Wire Size: 22 AWG
STFE Elite Series Active Tracking Filers with Surge Protection, Input Voltage: 120 V (0-150 Vms), Line Frequency: 47-63 Hz, Amps: 3.0, Min Wire Size: 24 AWG

STFE030-10N

STFE Elite Series Active Tracking Filers with Surge Protection, Input Voltage: 120 V (0-150 Vms), Line Frequency: 47-63 Hz, Amps: 3.0, Min Wire Size: 24 AWG

Frequently Asked Questions about SolaHD

What certifications and standards do SolaHD products comply with?

SolaHD power supplies are UL 508 Listed for Industrial Control Equipment and comply with multiple international standards, including UL 60950, CUL/CSA-C22.2 No. 234-M90, and IECEx certifications. Our products meet EMC and Low Voltage Directives, with extensive hazardous location certifications including Class I Zone 2, ATEX, and IECEx, ensuring reliable performance in industrial environments.

What industries and applications are SolaHD products used for?

SolaHD products are used across a wide range of critical industrial applications, including factory automation, process control, machine control, material handling, building automation, and harsh environment installations. Key industries include manufacturing, process industries, semiconductor fabrication, packaging, conveying equipment, instrumentation, and environments requiring UL508 compliance such as water treatment facilities. The products are specifically designed for challenging industrial settings, with certifications for hazardous locations and extreme temperature ranges.

What technical support does SolaHD offer?

SolaHD offers comprehensive technical support through experienced sales representatives available worldwide. Our support includes expert consultation for selecting the right power quality solutions, with award-winning online tools to help customers make precise product selections. Technical support covers the entire range of our industrial power solutions, from service entrance protection to point-of-use equipment, ensuring customers can optimize their facility's power infrastructure.

What are the main product lines offered by SolaHD?

SolaHD offers a comprehensive range of industrial power quality solutions across five primary product lines: Power Supplies, Surge Protection Devices (SPDs), Transformers, Power Conditioning, and Uninterruptible Power Supplies (UPS). Key product series include SDN Power Supplies, STV/STFV Surge Protective Devices, Industrial Control Transformers, MCR Constant Voltage Conditioners, and SDU UPS systems designed for industrial automation, process control, and critical manufacturing environments.

What are the key features of SolaHD products?

SolaHD products offer comprehensive industrial power quality solutions that convert, clean, and maintain electric current throughout manufacturing facilities. Key features include noise and surge protection, voltage regulation, drive protection, and uninterruptible power supplies (UPS). Their product lines cover everything from service entrance to point-of-use, with compact DIN rail mountable options that provide flexible, space-saving power solutions for sensitive industrial equipment like PLCs, networks, and control systems.

What environmental ratings do SolaHD products have?

SolaHD products feature robust environmental ratings including NEMA Type 1, 2, 3, 4, 4X, 12, and 13 classifications, as well as IP66 protection. These ratings ensure comprehensive protection against dust, water, and corrosion in both indoor and outdoor environments, with operating temperatures ranging from -40°C to 130°C.

What accessories are available for SolaHD products?

SolaHD offers a comprehensive range of accessories across multiple product lines, including surge protective devices (SPD), tracking filters, power supplies, UPS systems, and DIN rail mountable components. Key accessories include the STV100K Surge Protective Device, STFV Plus Series Tracking Filters, SDN and SCP Series Power Supplies, SDU Series UPS, and various DIN rail filters and converters that can be integrated into industrial control panels and power systems.

How are SolaHD products typically installed?

SolaHD products are typically installed on DIN rail mounting systems in industrial control panels, with multiple installation options including panel/wall mounting brackets. Most products feature easy-to-wire screw terminations, making them suitable for critical industrial applications like factory automation, PLCs, robotics, and computer-based control systems. The products are designed for flexible installation across various industrial environments, with wide operating temperature ranges from -20°C to +50°C and compact, rugged industrial designs.