





Kewtech KT400DL Digital Loop impedance & PSC / PFC Tester Offers LE + LN Testing With Carry Case 0V - 260 V Length: 180mm - Width: 85mm - Depth: 50mm
KT400DL
Digital Loop Impedance & PSC/PFC Tester – LE + LN Testing with Hands-Free Mount & Carry Case
This compact Digital Loop Impedance and PSC/PFC Tester offers accurate and efficient testing for loop impedance and prospective short/earth fault current. Featuring both high and low current loop tests, hands-free operation, and polarity warnings, it’s ideal for verifying supply integrity in domestic and commercial installations. Supplied in a durable carry case with mains lead for immediate use on-site.
- Dual Loop Test Options: Offers low current (no trip) and high current L–E loop impedance testing for flexibility across circuit types.
- PSC/PFC Capability: Measures Prospective Short Circuit and Earth Fault Current to assess supply safety and disconnection times.
- High-Resolution Readings: Provides high accuracy with 0.001Ω resolution in high current mode—ideal for precise verification.
- Polarity & Voltage Indication: Built-in LED alerts for voltage presence and polarity errors help ensure safer test conditions.
- Hands-Free Use: Integrated magnetic hanger allows secure attachment to metal consumer units for easy, stable operation.
Technical Specification
- Voltage Range: 0V – 260V AC
- Loop Testing: Low and high current L–E loop impedance
- PSC/PFC Measurement: Yes, with high accuracy
- Voltage Measurement: VLN, VLE, VNE
- Dimensions: 180mm (L) x 85mm (W) x 50mm (D)
Included Accessories
- Mains Test Lead
- Magnetic Hanger
- Carry Case
✅ Achieve safe and accurate loop and PSC/PFC testing with this feature-packed unit—compact, precise, and built for professional installations!
Measuring Range | 0 to 260V 0 to 500Ohms Loop Impedance |
Measuring Accuracy | 5 % |
Minimum Storage Temperature | -10 Degrees C |
Maximum Storage Temperature | 60 Degrees C |
Maximum Operational Humidity | 80 % |
Ean Code | 5060084082007 |
Product | Tester |
Type | Loop Impedance |
Colour | Grey |
Length | 180 mm |
Unit Weight | 0.45 kg |
Material | Plastic |
Width | 85 mm |
Standards | BE EN 61010-2-030:2010 BS EN 61326-2-2:2013 BS EN 61557-1:2007 BS EN 61557-3:2007 |
Included Accessories | Mains lead Carry case Manual Calibration Certificate |
Volts | 6 V |
Height | 50 mm |
Measuring Frequency | 50|60 Hz |
Measuring Voltage | 195-260 V |
Battery Life Span | 50h |
Minimum Operating Temperature | 0 Degrees C |
Maximum Operating Temperature | 40 Degrees C |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 ex-VAT)
- STANDARD DELIVERY – 2–3 Working Days From Despatch (subject to stock availability) - £4.99 inc-VAT. (£4.16 ex-VAT)
- Orders Over £100 (before VAT): We offer free standard shipping on all orders shipped to UK mainland addresses
- Orders under £100 (before VAT): Our standard delivery fee to UK mainland addresses is £5.90 ex-VAT (£7.08 inc-VAT)
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12 ex-VAT for all orders (Prices subject to change).
Items requiring specialist shipping:
- Orders containing Solar Panels, Batteries and/or Inverters: Up to 50 qty will be dispatched on a pallet and incur a £120 ex-VAT delivery charge**.
**Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £180 ex-VAT (Prices subject to change).
Contact us if you have any further questions.