The Ditek DTK-120/240CM+ is a 1-phase parallel-wired surge protective device (SPD) for 120/240 VAC service. First, it connects in parallel across the panel. Then it diverts transient surges to ground before they reach connected equipment.
Specifically, the DTK-120/240CM+ is rated 120/240 VAC at 20 A, 50/60 Hz. In addition, it offers a 10 kA Short Circuit Current Rating and 50,000 A Peak Surge capacity. Furthermore, Nominal Discharge Current (In) is rated at 10 kA per phase.
Where the Ditek DTK-120/240CM+ fits
The DTK-120/240CM+ is purpose-built for outdoor or wet-location equipment protection. For example, HVAC condensers, well pumps, irrigation pumps, motors, and incoming utility service typically benefit. Also fire alarm and life-safety panels with a dedicated 120/240V branch fit. However, the device is wired in parallel, not in-line — therefore confirm install method with the AHJ.
Construction and physical specs
First, the DTK-120/240CM+ uses a NEMA 4X rated enclosure for outdoor and washdown environments. Then a 3/4-inch NPT parallel-wired terminal mates with standard conduit. Specifically, the device measures 3.5 in. L x 1.89 in. W x 3.4 in. H. As a result, the unit fits in tight panel rooms and outdoor mounting locations.
Warranty and listings
The DTK-120/240CM+ carries Ditek’s 10-year product warranty. In addition, the device is listed under UL 1449 as a Type 1 or Type 2 SPD. However, exact Type designation depends on the install location relative to the service-entrance overcurrent device. Confirm with the latest Ditek datasheet for the project’s listing requirements.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 0.6 lbs |
|---|---|
| Dimensions | 6 × 4.25 × 2.75 in |
| Condition | New |
| Manufacturers | Ditek |
| Part Type | Replacement Part |







