777-FT数据手册工业自动化与控制的保护继电器系统规格书PDF
技术参数
- 制造商编号
：777-FT
- 生产厂家
：Littelfuse
- Maximum Input Power
：10
- Input AC Line Frequency (Hz)
：50 / 60
- Output Form
：SPDT - Form C
- Output Load Rating (VA)
：Pilot Duty: 480 VA @ 240 VacB300; General Purpose: 10 A @ 240 Vac
- Full Load Amp Range (A)
：2 - 25: 3 phase (looped conductors required); 25 - 90: 3 phase (direct); 80 - 800: 3 phase (external CTs)
- Timing Accuracy (%)
：5% ±1 s
- Rapid Cycle Timer (s)
：0; 2 - 500 s (x0.5 if TC = J100)
- Restart Delay Range
：All faults: 2 - 500 m (x0.5 if TC = J00); # of Restarts: All faults except undercurrent: 0; 1; oc1; 2; oc2; 3; oc3; 4; oc4; A; ocA (Automatic); Undercurrent: 0; 1; 2; 3; 4; A (Automatic)
- Repeat Accuracy (%)
：Voltage: ±0.5% of nominal voltage; Current: ±1% (
- Trip Delay Type
：Overcurrent: (2 - 500) x 0.158 s = (0.32 - 79 s)
- Overvoltage Trip Voltage (%)
：LV setting - 528 V
- Undervoltage Trip Voltage
：170 V - HV setting
- Voltage Unbalance Trip Point (%)
：2 - 15% or 999
- 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; J100 (J100 = Linear)
- Undercurrent Trip Point
：0; 10 - 98 A … MULT or 40 - 100% of CT primary
- Undercurrent Trip Delay (s)
：2 - 60 s
- Current Unbalance Trip Point (%)
：2 - 25% or 999 (disabled)
- Current Unbalance Trip Delay (s)
：% over setpoint / Trip time: 1% / 30s; 2% / 15s; 3% / 10s; 4% / 7.5s; 5% / 6s; 6% / 5s; 10% / 3s; 15% / 2s
- Current Accuracy (%)
：±3% (
- Ground Fault Current Trip Point (A)
：(3 - 20) … MULT or 10 - 30% of primary CT or OFF
- Ground Fault Trip Delay (s)
：% of setpoint / Trip time: 101 - 200% / 8s ± 1s; 30s; 201 - 300% / 4s ± 1s; 301 - 400% / 3s ± 1s; 401%+ / 2s ± 1s
- Ground Fault Accuracy (%)
：±15%
- Sensor Hole Size
：Max conductor size: 0.65 in (with insulation)
- Motor Acceleration Time Operating Point (s)
：(0 to 500) x 0.158s = (0 to 79s)
- Short Circuit (kA)
：10
- 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; or 100 - 800 ratio
- 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
| 供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
|---|---|---|---|---|---|---|---|
LITTELFUSE C&K COMPONENTS |
2450+ |
SOP |
6540 |
只做原厂原装正品终端客户免费申请样品 |
询价 | ||
Keystone Electronics Corp |
2023+ |
原厂封装 |
8700 |
原装现货 |
询价 | ||
Keystone Electronics |
23+ |
原厂封装 |
42831 |
只做原装只有原装现货实报 |
询价 | ||
新 |
105 |
全新原装 货期两周 |
询价 | ||||
AMPH |
23+ |
5000 |
原厂授权代理,海外优势订货渠道。可提供大量库存,详 |
询价 | |||
KEYSTONE |
2447 |
SMD |
100500 |
一级代理专营品牌!原装正品,优势现货,长期排单到货 |
询价 | ||
INTERSIL |
2022 |
SOP16 |
105 |
全新原装现货热卖 |
询价 | ||
IMS |
24+/25+ |
210 |
原装正品现货库存价优 |
询价 | |||
KEYSTONE |
20+ |
连接器 |
2963 |
就找我吧!--邀您体验愉快问购元件! |
询价 | ||
24+ |
N/A |
53000 |
一级代理-主营优势-实惠价格-不悔选择 |
询价 |
