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Supco LBK10 Single-Phase HVAC Surge Protective Device - HVAC Equipment External-Mount SPDs
SupcoHVAC Equipment External-Mount SPDs

Supco LBK10 Single-Phase HVAC Surge Protective Device

The SUPCO Surge Protection Device is a single-phase HVAC equipment external-mount SPD with a plastic enclosure. It operates at 120/240V AC with a maximum continuous operating voltage of 150/300 V AC. The device…

SKU 3G-OTH-21429

Also listed as: LBK 10 · LBK-10

Brand
Supco
Item
LBK10 Single-Phase HVAC Surge Protective Device
Category
HVAC Equipment External-Mount SPDs
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Technical Specifications

Supco
Manufacturer Part Number
LBK10
Type
600V (L-G, L-N, N-G)/900V (L-L), Plastic
AC
120/240V
Voltage
120/240V AC
Enclosure Material
Plastic
Voltage Protection Rating
600V (L-G, L-N, N-G)
Max. Continuing Operating Voltage
150/300 V AC

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Supco Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SUPCO Surge Protection Device is a single-phase HVAC equipment external-mount SPD with a plastic enclosure. It operates at 120/240V AC with a maximum continuous operating voltage of 150/300 V AC. The device provides a voltage protection rating of 600V for line-to-ground, line-to-neutral, and neutral-to-ground modes.

Frequently Asked Questions

What is the SUPCO Surge Protection Device used for?

The SUPCO Surge Protection Device protects single-phase HVAC equipment from voltage spikes and transient surges. It is commonly installed on compressors, condensers, and heat pumps to prevent damage from lightning strikes or grid fluctuations, extending equipment life in commercial and residential applications.

What are the specifications of the SUPCO Surge Protection Device LBK10?

The SUPCO LBK10 is a single-phase SPD rated for 120/240V AC with a maximum continuous operating voltage of 150/300V AC. It provides a voltage protection rating of 600V for line-to-ground, line-to-neutral, and neutral-to-ground modes. The enclosure is made of plastic, and the part number is LBK10.

Where to buy the SUPCO Surge Protection Device worldwide?

3G Electric supplies the SUPCO Surge Protection Device LBK10 to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time; we source and deliver this SPD for HVAC applications.

How to install the SUPCO Surge Protection Device?

Install the SUPCO SPD externally on the HVAC unit near the power connection. Disconnect power, mount the device securely, and wire according to the manufacturer's diagram: line, neutral, and ground. Ensure the unit is properly grounded. Always follow local electrical codes and consult a licensed electrician for safe installation.

Used in

Common applications for Supco
Commercial refrigeration display cases — Supco RO82 relay and CSS-25U starter for compressor motor control without run capacitors
Medium-load HVAC systems — Supco SPP 6/SPP 8 hard-start devices to reduce compressor inrush current and extend motor lifespan
Cold-chain pharmaceutical and food storage — SL300TH temperature–humidity data logger for continuous monitoring and regulatory documentation
Refrigerant service operations — Piercing valves and perforator cocks in 1/2" and 5/8" sizes for fast, non-invasive line access
Compressor thermal management — Universal Compressor Door for reducing shell temperature and improving efficiency in hot ambient conditions
Retrofit and field repairs — Supco controls with Quick Connect terminals for rapid installation in legacy refrigeration circuits

Supco Products

3G Electric supplies Supco hvac equipment external-mount spds. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Single-phase surge protective device for residential whole house external-mount applications. Operates at 120/240V AC with a maximum continuous operating voltage of 150V AC. Provides surge protection ratings of 600V (L-N), 1000V (L-L, N-G), and 700V (L-G). Features a plastic enclosure and 40kA nominal discharge current
SQUARE
Single-phase surge protective device for residential whole house external-mount applications. Operates at 120/240V AC with a maximum continuous operating voltage of 150V AC. Provides surge protection ratings of 600V (L-N), 1000V (L-L, N-G), and 700V (L-G). Features a plastic enclosure and 40kA nominal discharge current
Single-phase enclosed external-mount surge protective device for 120/240V AC systems. Steel enclosure, 150kA max surge current per mode (L-G), 1200V L-L voltage protection rating. Includes dry contacts for remote monitoring. Suitable for protecting electrical panels and equipment from transient overvoltages
Siemens
Single-phase enclosed external-mount surge protective device for 120/240V AC systems. Steel enclosure, 150kA max surge current per mode (L-G), 1200V L-L voltage protection rating. Includes dry contacts for remote monitoring. Suitable for protecting electrical panels and equipment from transient overvoltages
Single-phase enclosed external-mount surge protective device for 120/240V AC systems. Steel enclosure, rated for max continuous operating voltage 150V AC, voltage protection rating 1200V L-L and 700V L-G/L-N/N-G, max surge current 100kA per mode (L-G). Includes dry contacts for remote monitoring. Suitable for protecting electrical panels and equipment from transient overvoltages in commercial and industrial installations
Siemens
Single-phase enclosed external-mount surge protective device for 120/240V AC systems. Steel enclosure, rated for max continuous operating voltage 150V AC, voltage protection rating 1200V L-L and 700V L-G/L-N/N-G, max surge current 100kA per mode (L-G). Includes dry contacts for remote monitoring. Suitable for protecting electrical panels and equipment from transient overvoltages in commercial and industrial installations
Single-phase surge protective device for residential whole house external-mount installation. Rated 120/240V AC with 36kA surge current capacity. Clamping voltages: 1000V L-L, 600V L-G/L-N, 800V N-G. Advanced Polymer housing includes four self-tapping screws for mounting
EATON
Single-phase surge protective device for residential whole house external-mount installation. Rated 120/240V AC with 36kA surge current capacity. Clamping voltages: 1000V L-L, 600V L-G/L-N, 800V N-G. Advanced Polymer housing includes four self-tapping screws for mounting
Single-phase external surface-mount surge protective device (SPD) with polycarbonate enclosure. Rated 120V AC, maximum continuous operating voltage 180V AC. Provides voltage protection ratings of 1200V (L-G), 600V (N-G), and 700V (L-N). Includes LED status indicator. Suitable for protecting electrical systems from transient overvoltages in commercial and industrial applications
LITTELFUSE
Single-phase external surface-mount surge protective device (SPD) with polycarbonate enclosure. Rated 120V AC, maximum continuous operating voltage 180V AC. Provides voltage protection ratings of 1200V (L-G), 600V (N-G), and 700V (L-N). Includes LED status indicator. Suitable for protecting electrical systems from transient overvoltages in commercial and industrial applications
Single-phase external surface-mount surge protective device (SPD) for 120V AC systems. Polycarbonate enclosure with LED status indicator. Voltage protection ratings: 1200V (L-G), 600V (N-G), 700V (L-N). Maximum continuous operating voltage: 180V AC. Suitable for installation at service entrance or branch panels in commercial and industrial settings
LITTELFUSE
Single-phase external surface-mount surge protective device (SPD) for 120V AC systems. Polycarbonate enclosure with LED status indicator. Voltage protection ratings: 1200V (L-G), 600V (N-G), 700V (L-N). Maximum continuous operating voltage: 180V AC. Suitable for installation at service entrance or branch panels in commercial and industrial settings

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