DITEK DTK‑120/240CM+ Surge Protective Device

The DITEK DTK-120/240CM+ is a durable and cost-effective surge protective device (SPD) designed to safeguard 120/240VAC split-phase electrical systems from damaging transient voltage surges. The DITEK DTK-120/240CM+ is commonly used to protect HVAC condensers, pool pumps, well pumps, motors, and incoming utility power connections. Therefore, it provides reliable surge protection for both residential and commercial electrical equipment operating on split-phase power systems.

DITEK DTK-120/240CM+ Function

The DITEK DTK-120/240CM+ is designed to divert harmful surge energy away from connected electrical equipment before damage can occur. As a result, it helps extend equipment life, reduce downtime, and minimize costly repairs caused by lightning strikes, utility switching events, and other electrical disturbances. In addition, its parallel connection design allows continuous operation of protected equipment while providing surge suppression.

50,000 Amp Surge Protection Capacity

The DTK-120/240CM+ features a 50,000 Amp total surge current rating, providing robust protection for critical electrical equipment. Consequently, it can withstand repeated surge events while maintaining reliable performance. Moreover, the high surge handling capability helps ensure long-term protection in demanding electrical environments.

Split-Phase 120/240VAC Protection

This surge protective device is specifically engineered for 120/240VAC split-phase electrical systems. Therefore, it is ideal for applications where residential and light commercial split-phase power is utilized. Furthermore, it protects across Line-to-Line (L-L) and Line-to-Ground (L-G) modes for comprehensive electrical system coverage.

Diagnostic LED Status Indicator

The DITEK DTK-120/240CM+ incorporates a diagnostic LED indicator that provides visual confirmation of system power, grounding status, and surge protection functionality. As a result, installers and maintenance personnel can quickly verify operational status without specialized test equipment. Additionally, the visual indicator simplifies routine inspections and troubleshooting.

NEMA 4X Weatherproof Enclosure

The DTK-120/240CM+ is housed within a rugged NEMA 4X weatherproof enclosure designed for indoor and outdoor installations. Consequently, it provides reliable protection in harsh environmental conditions including moisture, dust, and corrosive atmospheres. Moreover, the weather-resistant construction makes it suitable for HVAC equipment, pumps, and other exposed electrical installations.

UL 1449 Type 1 Listed Protection

The DITEK DTK-120/240CM+ is UL 1449 Listed as a Type 1 Surge Protective Device. Therefore, it can be installed on the line side or load side of the service entrance in approved applications. Furthermore, the UL listing confirms compliance with recognized surge protection performance and safety standards.

Protection for Critical Electrical Equipment

The DTK-120/240CM+ is commonly used to protect:

• HVAC condensers
• Air conditioning systems
• Pool pumps
• Well pumps
• Electric motors
• Incoming utility power
• Lighting systems
• Small commercial electrical equipment
• Residential electrical equipment
• Outdoor electrical installations

Consequently, it helps prevent costly equipment failures and service interruptions caused by electrical surge events.

Technical Specifications

• Model: DTK-120/240CM+
• Type: Split-Phase Surge Protective Device
• Voltage Configuration: 120/240VAC Split Phase
• Frequency: 50/60 Hz
• Total Surge Current Rating: 50,000 Amps
• Protection Modes: L-L, L-G
• SPD Type: UL 1449 Type 1
• Enclosure Rating: NEMA 4X Weatherproof
• Indicator: Diagnostic LED
• Connection Type: 3/4-Inch Male Threaded
• Number of Wires: 2 Wires + Ground
• Short Circuit Current Rating: 10kA
• Operating Temperature: -40°C to 85°C (-40°F to 185°F)
• Dimensions: 3.5″ L x 1.89″ W x 3.4″ H
• Application: HVAC Equipment, Pumps, Motors, Utility Power Protection
• Certifications: UL 1449 Listed, cULus Listed, RoHS Compliant
• Warranty: 3-Year $7,500 Residential Connected Equipment Warranty

Applications

The DITEK DTK-120/240CM+ is ideal for:

• HVAC surge protection
• Air conditioning condenser protection
• Pool pump protection
• Well pump protection
• Motor protection
• Incoming utility power protection
• Residential electrical systems
• Small commercial electrical systems
• Outdoor electrical equipment
• Industrial equipment protection
• Parking lot lighting systems
• Highway lighting systems

Reliable Multi-Purpose Surge Protection Solution

The DITEK DTK-120/240CM+ combines 50,000 Amp surge protection, split-phase 120/240VAC compatibility, diagnostic LED monitoring, and a NEMA 4X weatherproof enclosure in a compact and durable design. Overall, it delivers dependable protection for HVAC systems, pumps, motors, and utility power connections while helping reduce equipment downtime and maintenance costs through effective surge suppression.

DTK-120 240CM+ Datasheet