AB 193-EC2BD

The E3 Plus Overload Relay offers current imbalance trip and

warning settings adjustable from 10…100%. The trip function also

includes a trip delay time with a range of 0.1…25.0 seconds.

Description:

A sudden drop in motor current can signal conditions such as:

Pump cavitation

Tool breakage

Belt breakage

For these instances, rapid fault detection can help minimize damage

and aid in reducing production downtime.

Additionally, monitoring for an underload event can provide

enhanced protection for motors that are coded by the medium

handled (e.g., submersible pumps that pump water). Such motors

can become overheated despite being underloaded. This can result

from an absence or an insufficient amount of the medium (due to

clogged filters, closed valves, etc.).

The E3 Overload Relay offers underload trip and warning settings

adjustable from 10…100% FLA. The trip function also includes a

trip delay time with a range of 0.1…25.0 seconds.

Over-temperature Protection

The E3 Plus Overload Relay provides motor over-temperature

protection with the added provisions for terminating and monitoring

of stator windingembedded positive temperature coefficient (PTC)

thermistors. PTC thermistors are semiconductors that exhibit a large

increase in resistance when the rated response temperature is

exceeded. When the monitored PTC thermistor resistance exceeds

the response level of the E3 Plus Overload Relay (3400 Ω), it can be

set to trip immediately or programmed to set the PTC bit of the

Warning Status word.

Payment: Bank of Chicago, Bank of Singapore

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Service: Professional Sales provides 24 hours /7 days online service

E-mail: alex@fenoux.com

Tel.: +86 13338369201

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