Dekal CPT-400 Cable & Plug Test Box — 115/200V AC 400Hz | Aviation GPU Cable Testing

Dekal CPT-400 — Cable & Plug Test Box | 115/200V AC 400Hz | Aviation Ground Power Testing

Part Number: CPT-400 Manufacturer: Dekal Load Banks Type: Cable / Plug Test Box — 115/200V AC 400Hz Classification: CE Marking, DIN, VDE, IEC | IP21

The Dekal CPT-400 is a specifically designed, rugged cable and plug test box built for the testing and servicing of 115/200V AC 400Hz power cables and aircraft/GPU plugs on the airport apron, air base, and in maintenance workshops. Part of Dekal's proven CPT (Cable Plug Tester) series, it is trusted by aviation ground support professionals in both civil and military operations worldwide.

The CPT-400 enables technicians to quickly verify AC 400Hz power cable integrity, phase rotation, E&F control circuit function, and operational status — all in a compact, portable unit designed for both trained and non-trained operators. A standout feature is the built-in 28V DC transformer, providing onboard 28V DC control power without requiring a separate DC source. Isolated jack sockets provide a safe connection point for an external digital voltmeter or multimeter when more detailed measurements are needed.

Like all Dekal products, the CPT-400 ships complete in a compact transport carrying case with handle — included as standard in the unit price.

Key Features

• 115/200V AC 400Hz Testing — purpose-built for AC 400Hz power cable and aircraft/GPU plug verification
• Phase Rotation Indication — confirms correct phase sequence of three-phase voltages (right or left rotation)
• E&F Control Circuit Indication — control switch for pilot contact circuit testing
• Built-In 28V DC Transformer — provides onboard 28V DC control power independently, no separate DC source required
• Power Indicator Lights — immediate operational status confirmation
• Plug Test Pins / Isolated Jack Sockets for safe connection of an external measurement device (digital voltmeter/multimeter)
• Simple Operation — suitable for non-trained operators on apron or in workshop
• Civil and Military Certified — MIL-SPEC rated, used worldwide in both commercial and military aviation applications
• Testing Procedure Compliant with ISO 6858, DFS 400, and ARP 5015
• 2-Year Full Warranty with extension option available
• Transport Carrying Case Included as standard — no additional charge
• Color Options Available — Yellow, Red, Black (others on request)

Specifications

• Input Voltage: 115/200V AC ± 10%
• Frequency: 400Hz ± 10%
• Indication: 28V transformer, power indicator lights, phase rotation indication, E&F circuit indication, plug test pins for external measurement device
• Testing Standards: ISO 6858, DFS 400, ARP 5015
• Device Classification: CE marking, DIN, VDE, IEC
• IP Protection Rating: IP21
• Operating Temperature: -20°C to +50°C (-4°F to +122°F)
• Maximum Altitude: 1,000 m without downgrading; max. 2,000 m
• Relative Humidity: 0% – 85% (without condensation)
• Unit Dimensions (L × W × H): 300 × 160 × 170 mm / 11.8" × 6.3" × 6.7"
• Unit Weight: 2.8 kg / 6.2 lbs
• Transport Case Dimensions (L × W × H): 500 × 300 × 220 mm / 19.7" × 9.8" × 8.7"
• Transport Case Weight: 3.6 kg / 8.0 lbs
• Warranty: 2 years full warranty with extension option
• Color Options: Yellow, Red, Black (custom colors on request)

What's Included

• Dekal CPT-400 Cable/Plug Test Box
• Compact transport carrying case with handle

Ideal Applications

The CPT-400 is built for aviation ground support professionals who need a fast, reliable, and portable solution for 400Hz AC power cable and plug verification. It is well-suited for:

• Pre-operation verification of 115/200V AC 400Hz GPU power cables and aircraft plugs
• Three-phase rotation and E&F control circuit testing on commercial and military aircraft
• Airport apron and hangar maintenance operations
• Military air base ground support equipment (GSE) testing
• MRO facilities requiring standardized, compliant GPU cable verification procedures
• Field operations requiring a compact, rugged, carry-on test tool