Schneider Electric EM3555 Manual De Usuario

9

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•  Apply appropriate personal protective equipment (PPE) and follow safe 

electrical work practices. See NFPA 70E in the USA or applicable local 

codes.

•  This equipment must only be installed and serviced by qualified electrical 

personnel.

•  Turn off all power supplying equipment before working on or inside the 

equipment.

•  Always use a properly rated voltage sensing device to confirm power is 

off.

•  Read, understand, and follow the instructions before installing this 

product.

 

To avoid distortion, use parallel wires for control power and voltage inputs. 

The following symbols are used in the wiring diagrams on the following pages.

Voltage Disconnect Switch

Fuse (installer is responsible for ensuring compliance 

with local requirements. No fuses are included with 

the meter.)
Earth ground

S2

S1

Current Transducer

Potential Transformer

Protection device containing a voltage disconnect 

switch with a fuse or disconnect circuit breaker. The 

protection device must be rated for the available 

short-circuit current at the connection point.

•  This product is designed only for use with 1V or 0.33V current 

transducers (CTs).

•  DO NOT USE CURRENT OUTPUT (e.g. 5A) CTs ON THIS 

PRODUCT.