Kewtech KEW4118A / Kyoritsu 4118A, Digital Loop PSC Tester

The Kewtech KEW4118A / Kyoritsu 4118A digital loop impedance, PFC, and prospective short-circuit current (PSC) tester.

Key Features:

Microprocessor‑controlled accuracy ensures high precision and reliability in all measurements. 

Multi‑range LOOP testing:

• 20 Ω range with 25 A test current
• 200 Ω range with 2.3 A
• 2000 Ω range with just 15 mA—low enough not to trip sensitive 30 mA RCDs

Prospective Short‑Circuit Current (PSC):

• Ranges: up to 200 A, 2000 A, and 20 kA
• Values displayed directly, based on loop reading 

Voltage measurement

• 110–260 V AC with ±(2 % + 4 digits) accuracy

Socket wiring check

• Built‑in LEDs detect correct wiring or reversed phase/neutral.

Safety lock‑out

• Automatically disables test current if internal resistor overheats.

Large backlit display

• Ensures visibility even in dim environments .

Durable & weather-resistant

• IP54-rated enclosure suitable for outdoor or dusty conditions .