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Shanghai Hanshi Electric Automation Equipment Co., Ltd

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    1234065@qq.com

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    17749779099

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    2392A, 1st Floor, 199 Shiyi Road, Baoshan District, Shanghai

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Product details sharing of EOCR-3E420 Schneider protector
Date: 2025-10-23Read: 0

EOCR-3E420-4-20 mA analog output type

Built in MCU (microprocessor control)

True RMSAccurate measurement of three-phase current, with an overcurrent accuracy of ± 3%

Main body range: 05 type 0.5-7 A; 80 type 5-80 A;

After connecting to an external CT, the first dose is 10-800 A, and the second dose is 1 A/5 A, which is optional

Protection functions: overload, underload, startup stall, operation stall, phase loss, reverse phase, current imbalance4-20 mA analog output

Action characteristics: timed, inverse time, hot inverse time, 0.5 s-120 s/Class 1-30 fully adjustable

Online parameter viewing (readable during operation)

5Digital display+LED bar chart; Automatic cycle display of R/S/T current

Automatic/Electrical/Manual Reset: 0.5 s -20 minute timed automatic reset

Accumulated motor running time&alarm, fault cause display and historical storage (3 records)

Power outage without losing the last 3 faults and tripping currents

Power down mode N (hold)/R (reset) optional

Self diagnostic settings(Fail-Safe)The function can be started and stopped independently

Single phase/three-phase optional, low-frequency detection supports 20-400 Hz frequency converter system

35 mm DINrail mounting

Penetration and terminal type (T) are optional

protection function

Overcurrent (timed limit: 0.2-120 seconds, inverse time limit: 1... 30 classes)

Low current (0.5... 120 seconds)

Phase loss (0.5-5 seconds)

Reverse (0.1... 0.3 seconds)

Current imbalance (1-10 seconds)

Blocked rotation (after D-Time)

4-20 mA(Real time motor current; load ≤ 500 Ω)

EOCR-3E420Specification Sheet

Basic Information

brand

Schneider Electric

Product Series

EOCR

place of origin

South Korea (Yishan Factory)

Authorized General Agent in China

Shanghai Hanshi Electric Automation Equipment Co., Ltd

Product Name

EOCR-3E420Integrated electronic overcurrent relay

Application of Relay

Three phase/single-phase motor protection

Main functions

Overload, underload, locked rotor (start/run), phase loss, reverse phase, current imbalance4-20 mA analog output

protection type

Overload (In>set value)

Under load (In<set value)

Blocked rotation during startup (In>2-10 × In)
Blocked rotation during operation (In>1.5-5 × In)
Lack of phase

Reverse phase

Current imbalance (5-50%)

Network type/frequency

AC,50 / 60 Hz

Current setting range

05:0.5-7A

80:5-80A

When used in combination with an external CT, the 05 type can protect up to 960 A when the current exceeds 80A

analog output

4-20 mA

Electrical/mechanical characteristics

operating power supply

100~240V AC

Installation Method

Core through type (35 mm DIN rail)

Contact configuration

OLTrip: 1 NC+1 NO (95-96/97-98)
AL alarm: 1 NO (57-58)

Rated working voltage [Ue]

600 V AC, 50-60 Hz (main circuit, UL compliant)

690 V AC, 50-60 Hz (main circuit, compliant with CSA)

690 V AC, 50-60 Hz (main circuit, compliant with IEC 60947-4-1)

Rated impulse withstand voltage [Uimp]

6 kV(Complies with IEC 60947-4-1)

Reset method

Manual/Electrical/Automatic

Time Setting

Overcurrent action time: 0.2-120 seconds (timed)
Start delay: 0-600 s/Off

Inverse time curve: 1-30 Class

display mode

Bar chart+7-segment LED (real-time display of three-phase current and fault codes)

Relay power consumption

5 W

Wiring specifications

Control circuit cable 2 × 1... 1.5 mm ² flexible wire with cold pressed end (M3 screw)

Control circuit cable 2 × 1... 1.5 mm ² flexible wire, without cold pressed end

Tightening torque

Control circuit terminal: 0.8-1.2 N · m (suitable for 4.7 mm cables)

Dimensions (W × H × D)

Penetrating type: 70 × 56.3 × 106 mm

Terminal type: 70 × 91.3 × 106 mm

Product weight

Penetrating type: 0.27 kg

Terminal type: 0.44 kg