PLR120A工业自动化与控制监控器-继电器输出规格书PDF中文资料
PLR120A规格书详情
Description
The PLR Series provides a cost effective means of preventing
3-phase motor startup during adverse voltage conditions. Proper
A-B-C sequence must occur in order for the PLR’s output
contacts to energize. In addition, the relay will not energize
when an undervoltage or phase loss condition is present. The
PLR Series protects a motor against undervoltage operation.
The adjustment knob sets the undervoltage trip point.
Operation
The output relay is energized and the LED glows when all
voltages are acceptable and the phase sequence is correct.
Undervoltage must be sensed for a continuous dropout delay
period before the relay de-energizes. Reset is automatic upon
correction of the fault condition. The output relay will not
energize if a fault condition is sensed as power is applied.
Field Adjustment: Turn the adjustment knob fully
counterclockwise and apply three-phase power. The LED should
be ON. Increase adjustment until the LED goes OFF. Decrease
adjustment until LED glows again. If nuisance tripping occurs,
decrease the adjustment slightly.
NOTE: When properly adjusted and operating in an average system, a voltage unbalance of 10
or more is required for phase loss detection. When a phase is lost while the motor is running, a
voltage will be induced into the open phase nearly equal in magnitude to the normal phase-tophase
voltage. This condition is known as regeneration. When regenerated voltages are present,
the voltage unbalance during single phasing may not exceed 10 for some motors. The PLR
Series may not provide protection under this condition. For systems that require superior phase
loss protection, select the PLMU Series.
FEATURES BENEFITS
Continuous monitoring Prevents 3-phase motor startup when undervoltage
or phase loss condition is present
Industry standard 8-pin
octal plug connection Eliminates need for special connectors
LED indication Quick visual indication of output status and correct
phase sequence
PLR120A属于工业自动化与控制 > 监控器 - 继电器输出。力特公司制造生产的PLR120A监控器 - 继电器输出继电器输出监控器检测工业继电器的异常输出,并触发逻辑输出或触头组。常见的检测类型包括:AC 和 DC 电流或电压、电压不对称、接地故障、温度监控、缺相,以及相位序列或不平衡。这些器件可根据跳闸范围、延迟时间、供电电压、安装类型和开关电路进行选择。
产品属性
- 产品编号:
PLR120A
- 制造商:
Littelfuse Inc.
- 类别:
工业自动化与控制 > 监控器 - 继电器输出
- 系列:
PLR
- 包装:
散装
- 类型:
电压检测 AC
- 跳断状态:
低激励
- 跳断范围:
95 ~ 140V AC
- 延迟时间:
无延迟
- 电压 - 供电:
95 ~ 140VAC
- 输出类型:
继电器
- 电路:
SPDT(1 Form C)
- 不同电压时额定接触电流:
5A @ 240VAC
- 安装类型:
底座安装
- 描述:
3 PHASE LINE MONITOR
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
EVERLIGHT |
20+ |
标准 |
88720 |
红外全新原装主营-可开原型号增税票 |
询价 | ||
EVERLIGHT/亿光 |
24+ |
DIP |
880000 |
明嘉莱只做原装正品现货 |
询价 | ||
EVERLIGHT |
2020+ |
SMD |
4112 |
代理品牌,全新原装现货超低价! |
询价 | ||
EVERLIGH原装 |
22+23+ |
DIP |
32818 |
绝对原装正品全新进口深圳现货 |
询价 | ||
EVERLIGHT |
23+ |
NA |
39960 |
只做进口原装,终端工厂免费送样 |
询价 | ||
EVERLIGH |
2310+ |
DIP |
13410 |
优势代理渠道,原装现货,可全系列订货 |
询价 | ||
EVERLIGHT(台湾亿光) |
2021+ |
9.7x13.5x10 |
499 |
询价 | |||
亿光(EVERLIGHT) |
2308+ |
401702 |
一级代理,原装正品,公司现货! |
询价 | |||
KYOCERAT-亿光 |
24+25+/26+27+ |
车规-LED光电 |
9417 |
一一有问必回一特殊渠道一有长期订货一备货HK仓库 |
询价 | ||
EVERLIGHT/亿光 |
22+ |
DIP |
50000 |
原装正品.假一罚十 |
询价 |