Datasheet > 3B20UR

3B20UR

更新时间： 2023-02-15 00:00:00

品牌	Logo	应用领域
ALTECH		/
页数	文件大小	规格书
8页	2181K
描述
Thermal Magnetic Circuit Breaker,

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数据手册

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3B20UR 数据手册

UR Series

UL1077 Recognized

Supplementary Protector

• DIN Rail Mounted

• 17.5mm width per pole

• Thermal Magnetic

• Current Limiting

• 0.5-60A / 480Y/277V AC,

50/60Hz

• 10kA Short Circuit

Withstand Capacity

• Applications (on the load side

of Branch Circuit Protection)

include: Sensitive Electronics,

Power Supplies, Appliance

circuits, etc.

PENDING

E137915

UR - Series

Voltage Rating

0.5-60A / 480Y/277V AC

0.5 - 10A (RC): 10 kA with no back-up fuse

8 - 63A (RC): 10 kA with UL-listed Class J back-up fuse;

5 kA with no back-up fuse

Short Circuit Withstand Rating

30ºC (86ºF)

Calibration Temperature

Ambient Temperature

Storage Temperature

Terminal Torque (min/max)

Electrical Life

-25ºC to +55ºC (-13ºF to 131ºF )

-40ºC to +70ºC (-40ºF to 158ºF )

2 Nm (17.7 lb.in.) / 2.5Nm (22.2 lb.in)

6000 switching cycles ON/ OFF

10000 switching cycles ON/ OFF

Mechanical Life

> 15g according to DIN EN 60069-2-59 during a load with 1.05 x I

Vibration Resistance

Resistance to mechanical shocks

25g @ 11ms

Short Circuit Withstand Ratings for R-Series Supplementary Protector

Backup Protection

Trip

Amp

UL-Listed

Class J Fuse

up to 10kA

No Backup Fuse

Curve

Range

Required

up to:

All

0.5 - 10A

12 - 60A

70A

10kA

All

4xRC*

5kA

*up to nearest rated current

For the latest on Altech Circuit Breakers specifications please visit www.altechcorp.com/breaker.

12 3 4 5 6 7 8

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