Download - How to read Circuit Breaker Markings and Symbols low voltage · How to read Circuit Breaker Markings and Symbols x 2 N 1 N 2 4 1 3 x x 1 2 N N x 2 N 1 N 2 4 1 3 Plus: Positive Polarity

ON

Trip (Mid position)

OFF

Current Rating60A - 60 ampere

MCB Symbol(isolation capable)

CurveC3 - Curve 3

Rated Voltage240V - 240 voltFrequency50Hz - 50 hertz

Interrupting Capacity3 kA - 3 kiloampere

Model Code - QAPole type - 1 / singleWidth - 13 mm

Energy Efficiency(QA only)

low voltageHow to read Circuit Breaker

Markings and Symbols

x

2 N

N1

2 4

31x x

1

N2

Nx

N2

1 N

2 4

31

Plus: Positive Polarity

Minus: Negative Polarity

DCDirect Current

ACAlternating Current

CircuitBreaker

Disconnector /Isolator

Double PoleCircuit Breaker

1 Pole + NeutralCircuit Breaker

Double Pole Switch Disconnector

Earth Leakage Type Awith Overload

Earth Leakage Type C without Overload

For further information contact CBI-electric: low voltage:

Tel: +27 11 928 2000 - Email: [email protected] - Website: www.cbi-lowvoltage.com