Terasaki - Ar Acb Body Size Ar2 1250A 3P 65Ka W/Ocr21Cl/Sht - ARB2123STD

Features

Super fast clearance of short circuits, minimises the thermal and mechanical stress on busbars during an electrical fault

Unique 'Double Break' contact mechanism provides excellent mechanical and electrical endurance reducing life cycle costs

High short time withstand rating (I) providing superior selectivity and ensuring a reliable power supply

Isolating clusters on body, allow complete ACB circuit to be replaced and maintained without shutting down the switchboard

On-board energy management monitoring which facilitates energy usage reporting

Standards Compliance: IEC 60947-2 EN 60947-2 JIS C 8372 NEMA SG3 ANSI C37.13

Specifications

Component Type ACB: Body

Altitude, Operating (No Derating): 50

In, Rated Current at 40°C: 1250

Ics, Rated Service Short-Circuit Breaking Capacity, AC (IEC 60947): 50

Icu, Rated Ultimate Short-Circuit Breaking Capacity, 440V AC: 65

Rated Frequency: 50 / 60 Hz

Height: 50

Relative Humidity, Max: 50

Relative humidity, min: 50

IP Rating: IP41

Number of Poles: 3

Shock Acceleration (Max.): 50

Operating Temperature, Max: 50

Operating Temperature, Min: 50

Total Breaking Time: 50

Total Making Time: 50

Vibration Acceleration (Max.): 50

Uimp, Impulse Withstand Voltage: 12

Ui, Rated Insulation Voltage: 1000

Un, Nominal Operational Voltage, AC: 690

Automatic Spring Discharge Device: Yes

Control Circuit Safety Shutter: Yes

Ground Fault Trip Characteristic: Yes

Instantaneous Time Delay Trip Characteristic: Yes

Lockable Button Covers: Yes

Long Time Delay Trip Characteristic: Yes

Main Circuit Safety Shutter: Yes

Position Padlock: Yes

Sealable OCR Cover: Yes

Short Time Delay Trip Characteristic: Yes

Withdrawable: Yes

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