777-HVR-SP - 77C系列

系列: 77C Series - Single-Phase Current & Voltage Monitor
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777-hvr-sp-top
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Littelfuse产品并非为以下用途而设计，也不应被用于这些用途：包括但不限于汽车、航空航天、医疗、救生、维生、核设施、高可靠性应用、用于手术植入体内的装置，或者在产品故障或运行无法达到理想状态的情况下会造成人身伤害、死亡或财产损失的任何其他应用。除非在适用的Littelfuse产品文档中已有明确说明。 如果将产品用于相关Littelfuse文件中未明确说明的任何其他用途，则产品不享受Littelfuse质保。 如果将产品用于相关Littelfuse文件中未明确说明的其他用途，则Littelfuse不会为因此造成的任何索赔或损失承担责任。 除非经Littelfuse另行许可，否则Littelfuse产品的销售和使用应遵守Littelfuse销售条款与条件。 "Littelfuse"包括Littelfuse, Inc.及其所有附属实体。

The 777-HVR-SP single-phase relay provides motor protection with input voltage from 340–480 V ac and motor full load ampere range as follows: 2–25 A (looped conductors required); 26–90 A (direct); 80–800 A (external CTs required).

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参数 （将鼠标移到目标文字上面可显示详情） 数值
Input Voltage (V) 340 - 480 Vac
Maximum Input Power 10
Input AC Line Frequency (Hz) 50 / 60
Output Form SPDT - Form C
Output Load Rating (VA) Pilot Duty: 470 VA @ 600 Vac B600; General Purpose: 10 A @ 240 Vac
Full Load Amp Range (A) 2 - 25 (looped conductors required); 26 - 90 (direct); 80 - 800 (external CTs required)
Timing Accuracy (%) ±0.5 s
Rapid Cycle Timer (s) 0; 2 - 500 s
Restart Delay Range All faults except undercurrent: 2 - 500 m/s; Undercurrent: 2 - 500 m/s A (Automatic); # of Restarts: 0; 1; 2; 3; 4; A (Automatic)
Repeat Accuracy (%) Voltage: ±0.5% of nominal voltage; Current: ±1% (<100 A direct)
Undervoltage Trip Voltage 340 - HV setting
Voltage Accuracy (%) ±1%
Overcurrent Trip Point (20 - 100 A) … MULT of 80 - 120% of CT primary
Overcurrent Trip Class 5; J5; 10; J10; 15; J15; 20; J20; 30; J30; or lin (linear)
Undercurrent Trip Point 0; 10 - 98 A … MULT or 40 - 100% of CT primary
Undercurrent Trip Delay (s) 2 - 60 s
Current Accuracy (%) ±3% (<100 A direct)
Ground Fault Accuracy (%) ±15%
Sensor Hole Size Max conductor size: 0.65 in (with insulation)
Short Circuit (kA) 100
Surge Protection IEC: 61000-4-5 Level 3 2 kV line-to-line; Level 4 4 kV line-to-ground
Protection Class IP20 (finger safe)
Pollution Degree 3
CT Ratio 1 - 10; 100; 150; 200; 300; 400; 500; 600; 700; 800
Address A01 - A99
Termination Type Torque: 7 in-lbs
Mounting Method Surface mount (4 - #8 screws) or DIN rail mount
Operating Temperature -20° to 70°C (-4° to 158°F)
Storage Temperature (F/C) -40° to 80°C (-40° to 176°F)
Humidity 10 - 95% non-condensing per IEC 68-2-3
Dimensions 3.05 H x 3.85 W x 5.05 D in. (77.5 x 97.8 x 128.3 mm)
Weight (lbs/g) 0 Kg
Check Stock Yes

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