DITEK DTK-120HW 120VAC Surge Protective Device Type 1 SPD for Electrical Panels

The DITEK DTK-120HW is a high-performance 120VAC surge protective device (SPD) designed to protect electrical panels, fire alarm systems, and dedicated branch circuits from damaging power surges and transients. Its compact, parallel-mount design allows flexible installation in a wide range of industrial and commercial environments.

Built to meet the demanding standards of the life safety industry, the DTK-120HW offers reliable protection for sensitive electronic equipment. It features a NEMA 4X weatherproof enclosure, making it suitable for harsh indoor and outdoor installations.

With a fast response time and high surge-current handling capability, this SPD ensures maximum uptime and protection for mission-critical systems.

Key Features & Benefits

• 120VAC Surge Protection – Designed for electrical panels and branch circuits
• Type 1 SPD (UL1449 Listed) – Suitable for service entrance and downstream protection
• 50,000A Surge Current Capacity – High protection against transient spikes
• Compact Parallel-Mount Design – Flexible installation in tight spaces
• NEMA 4X Weatherproof Enclosure – Ideal for harsh indoor and outdoor environments
• Diagnostic LED Indicator – Confirms protection status and system power
• Fast Response Time (<1ns) – Immediate protection against surges
• 10-Year Warranty – Long-term reliability and protection

Ideal For

• Fire alarm control panels
• Industrial control systems (SCADA, BAS)
• Electrical distribution panels
• Pumps, motors, and HVAC systems
• Security and surveillance systems

Technical Specifications

Compatibility & Installation

• Compatible with 120VAC electrical panels and branch circuits
• Suitable for service entrance or downstream installation
• Designed for hardwired parallel connection

⚠ Installation should be performed by a licensed electrician per NEC guidelines.

Why Buy From Multilink

• ✔ Authorized distributor of power protection products
• ✔ Genuine DITEK products with manufacturer warranty
• ✔ Fast shipping & secure packaging
• ✔ Expert technical support
• ✔ Bulk and project pricing available

Frequently Asked Questions (FAQ)

Q: What does a Type 1 SPD mean?
A: Type 1 SPDs are installed at the service entrance and provide protection from external surges like lightning.

Q: Can this be used outdoors?
A: Yes. The NEMA 4X enclosure allows installation in harsh indoor and outdoor environments.

Q: What systems is this best suited for?
A: It is ideal for fire alarm panels, control systems, and electrical panels.

Q: Does it require maintenance?
A: Minimal — simply monitor the LED indicator for operational status.