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T28000040

产品描述Industrial Relays Overcurrent Earth Fault Relay
产品类别热门应用    机电/工控/自动化   
文件大小175KB,共1页
制造商Littelfuse
官网地址http://www.littelfuse.com
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T28000040概述

Industrial Relays Overcurrent Earth Fault Relay

T28000040规格参数

参数名称属性值
Product AttributeAttribute Value
制造商
Manufacturer
Littelfuse
产品种类
Product Category
Industrial Relays
Contact TerminationScrew
Contact FormDPST (2 Form A)
Coil TerminationScrew
Coil TypeNon-Latching
Switching Voltage24 VAC, 24 VDC
安装风格
Mounting Style
DIN Rail
系列
Packaging
Bulk
电流额定值
Current Rating
5 A
产品
Product
Industrial
工厂包装数量
Factory Pack Quantity
1

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Protection Relays & Controls
Earth-Fault Protection–Solidly-Grounded Systems
T2800 SERIES
Earth-Fault Relay
Description
The T2800 Earth Fault Relay is part of the T-Line series with
modular units for protection, control and monitoring of
generators. The T2800 detects the magnitude of the current
and, if this exceeds the preset level (0.02-2 x I
N
), the pick-up
LED will indicate and the delay timer will be started. After the
preset time (0.1-10 sec.) has expired the output relay and the
corresponding LED will be activated, provided that the current
level was exceeded for the entire delay time. The T2800 has
a normally energized output relay. The relay is a latching relay
which can be reset or disabled.
Features & Benefits
Simplified Circuit Diagram
FEATURES
Accepts high supply
voltage variation
BENEFITS
Ensures correct operation in spite of voltage
supply fluctuations (fulfils marine class
requirement)
12
13
SEC x 10
15
LATCHING
16
OFF
1
2
3
Visual indication of power,
Provides quick and concise status information
pick-up, and output trip
Direct line-line or line-
neutral voltage supply
(up to 690 Vac)
Wide range of combined
current and delay
settings
Galvanic isolated inputs
DIN-rail or screw- mount
& adjustment by
potentiometers
Simplifies design and installation.
No need for PTs
Enables versatile use as earth fault relay or
standard overcurrent relay. Combining more units
offers economic alternative to relays with inverse
time response.
Protects the unit against high AC voltage and
currents from the installation including spikes
18
I x 10
19
N
7
8
9
10
T2800
(Earth-Fault
Relay)
5
6
Easy installation
Ordering Information
ORDERING NUMBER
TERMINALS
1-3
2-3
I
N
Specifications
Trip Level
Delay
Max. Voltage
Voltage Range
Consumption
T2800.00
T2800.01
T2800.02
T2800.04
T2800.05
T2800.08
230 V
450 V
127 V
24V DC+AC
480 V
230 V
400 V
120 V
415 V
5A
5A
5A
5A
5A
1A
Other combinations and voltages are available on request.
0.02-0.2 x I
N
or 0.2-2 x I
N
0.1-1.0 sec. or 1.0-10 sec.
660 V
60-110%
Voltage 5 VA at U
N
Current 0.3 VA at I
N
Continuous Current
2 x I
N
Frequency Range
45-400 Hz
Output Relay
Normally energized, latching, resetable
Contact Rating
AC: 400 V, 5 A, 2000 VA
DC: 150 V, 5 A, 150 W
Overall Accuracy
±5%
Repeatability
±1%
Operating Temperature
–20°C to + 70°C
Dielectric Test
2500 V
EMC
CE according to EN50081-1, EN50082-1, EN50081-2,
EN50082-2
Approvals
Certified by major marine classification societies
Burn-in
50 hours before final test
Enclosure Material
Polycarbonate. Flame retardant
Weight
0.5 kg
Dimensions
H
70 mm (2.76”);
W
100 mm (3.94”);
D
115 mm (4.52”)
Installation
35 mm DIN rail or 4 mm (
3
/
16
”) screws
© 2014 Littelfuse Protection Relays & Controls
Littelfuse.com/t2800
Rev: 4-A-111014

T28000040相似产品对比

T28000040 T28000050 T28000010
描述 Industrial Relays Overcurrent Earth Fault Relay Industrial Relays Overcurrent Earth Fault Relay Industrial Relays Overcurrent Earth Fault Relay
Product Attribute Attribute Value Attribute Value Attribute Value
制造商
Manufacturer
Littelfuse Littelfuse Littelfuse
产品种类
Product Category
Industrial Relays Industrial Relays Industrial Relays
Contact Termination Screw Screw Screw
Contact Form DPST (2 Form A) DPST (2 Form A) DPST (2 Form A)
Coil Termination Screw Screw Screw
Coil Type Non-Latching Non-Latching Non-Latching
Switching Voltage 24 VAC, 24 VDC 480 VAC 450 VAC
安装风格
Mounting Style
DIN Rail DIN Rail DIN Rail
系列
Packaging
Bulk Bulk Bulk
电流额定值
Current Rating
5 A 5 A 5 A
产品
Product
Industrial Industrial Industrial
工厂包装数量
Factory Pack Quantity
1 1 1
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