KYORITSU 4120A

• Custom microprocessor controlled for highest accuracy and reliability. 
• 3 LEDs for checking correct wiring status. 
• 15mA LOOP measurement:
LOOP impedance 2000Ω range measurement is carried out with low test current (15mA). The current will not cause tripping out involved RCD even the one with the lowest nominal differential current (30mA). 
• Model 4120A has the automatic RCD(ELCB)lock device. There is no need to by-pass most passive RCD's at distribution boards when conducting LOOP or PSC tests. 
• Direct reading of Prospective Short Circuit Current (PSC)and earth fault current. 
• Safe voltage measurement function. 
• Large custom digital display readout on all models. 
• Measures low loop resistances(resolution of 0.01Ω) 
• Automatic lock-out if test resister overheats. 
• Large custom digital display readout. 
• Visual indication of reversed phase and neutral wiring at socket. 
• Designed to IP54 Rating 
• Complies with IEC61557 

Loop Impedance Ranges

20/200/2000Ω (20/200Ω D-LOK)

Loop Impedance
Accuracy

|±2%rdg±4dgt

AC Test Current

20Ω 25A   200Ω 2.3A
2000Ω 15mA

AC Test Period

20Ω (20ms)   200Ω (40ms)
2000Ω (280ms)

PSC Ranges

200A(2.3A 40ms)   2000A(25A 20ms) D-LOK
20kA(25A 20ms) D-LOK

PSC Ranges Accuracy

Consider accuracy of Loop impedance

Voltage

110V-260V ±2%rdg±4dgt

Operating Voltage

230V+10% -15%(195V~253V)50Hz

Safety Standard

IEC61010-1 CAT.III 300V
IEC61557-1,-3
IEC61010-2-031 Pollution Degree 2

IP Rating

IEC60529-IP54

Dimensions

185(L) × 167(W) × 89(D)mm

Weight

960g approx.

Accessories

Molded plug test leads
7121(Distribution board test leads)
Pouch for test leads
Shoulder Strap
Instruction Manual













 

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