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Compact grey weatherproof box with diagnostic LED and wiring terminals

DITEK

DITEK DTK-120/240CM+ 120/240V Surge Protector

SKU CH-C69Z-6KZ3E MPN DTK-120/240CM+

Single-phase surge arrester rated for 120/240 V AC with 36,000 A protection, NEMA 4X enclosure, diagnostic LED and automatic reset

  • Supply voltage120 V AC 240 V AC
  • Spec summaryService Voltage: 120 / 240 V AC MCOV: 130 / 260 V Protection
  • Product dimensions2.83 in × 2.93 in × 1.68 in
  • Product weight0.5 lb (0.23 kg)
  • Key featuresNEMA 4X weatherproof enclosure Parallel connection for easy
  • 36,000 A surge rating protects pumps and HVAC equipment
  • NEMA 4X enclosure withstands outdoor and wet environments
  • Diagnostic LED confirms power, ground and protection status
  • Auto-reset handles repeated surge events without replacement
  • Parallel wiring simplifies installation on 120/240 V circuits

Single-phase 120/240 V arrester

The DITEK DTK-120/240CM+ is a single-phase surge protective device rated for 120 V AC and 240 V AC service voltage. It suits installers protecting pumps, motors, HVAC condensers or incoming utility power. A NEMA 4X weatherproof enclosure and parallel connection simplify mounting in outdoor or damp locations. Diagnostic LEDs confirm power, ground presence and active protection at a glance.

Replaces unprotected or degraded service entrance

The unit steps up from no SPD or from a sacrificial device that must be replaced after one event. Its automatic reset handles multiple surge events without intervention. The jump is worth it when continuous uptime matters for motor-driven equipment or when code requires a Type 1 SPD listed to UL 1449 at the service entrance.

Sustains repeated transients without degradation

A 36,000 A per-phase surge current rating and 10,000 A SCCR let the device absorb repeated lightning-induced or utility transients. Voltage protection ratings of 500 V line-to-ground and 900 V line-to-line clamp let-through voltage during prolonged events. MCOV of 130 V and 260 V ensures the protector stays conductive under continuous overvoltage rather than opening the circuit.

How it compares

Measured against everything we stock in Surge Protector Power Strips, at today’s prices. Recalculated every night.

Price $41.99
Pricier than about 56% of the 565 comparable items (median $37.99).

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Specifications

Product
Brand nameDITEK
Model nameDTK-120/240CM+
Power
Supply voltage120 V AC 240 V AC
Size & build
Product dimensions2.83 in × 2.93 in × 1.68 in
Product weight0.5 lb (0.23 kg)
Shipping weight2.27 kg
Package size254 × 254 × 254 mm

Questions about this item

What enclosure rating does the DTK-120/240CM+ need for outdoor mounting?

It uses a NEMA 4X weatherproof enclosure rated for outdoor and wet locations.

Which wiring mistake trips the diagnostic LED during parallel installation?

Reversing line and load conductors prevents the LED from confirming power, ground presence, and surge protection.

When should the DTK-120/240CM+ be replaced after repeated surges?

Replace the unit when the diagnostic LED no longer illuminates, indicating the protection circuitry is exhausted.

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