84871042 Crouzet USA, 84871042 Datasheet
84871042
Manufacturer Part Number
84871042
Description
Controls & Accessories
Manufacturer
Crouzet USA
Datasheet
1.26852304.pdf
(1 pages)
CONTROLS
5-20
EI SERIES
CURRENT CONTROL RELAY
UL cUL listed
• 3 Product Types for Measurement Accuracy
• Under or Over Current - Selectable
• Space Saving 22.5mm Wide
• DIN-Rail / Surface Mount
Three product types; EIL (2 to 500 mA), EIH (.1 to 10A) and EIT (10 to 100A with
current transformers) provide selectable over or under current control.
AC/DC control without memory.
When the value of the controlled current, either AC or DC, reaches the threshold
displayed on the front face, the output relay change state at the end of time delay T1.
It returns to the initial state instantly when the current drops below the hysteresis
threshold, or when the power supply is disconnected.
AC/DC control with memory.
When the value of the controlled current reaches the displayed threshold, the output relay
changes status at the end of time period T1 and remains locked in this position. To reset
the memory function the auxiliary supply must be disconnected.
Over-current function (UPPER).
The power-on time delay T2 prevents current peaks due to motor starting.
The delay on upward crossing of threshold T1 provides immunity to transients and other
interference, thereby preventing spurious triggering of the output relay.
Under-current function (UNDER).
The power-on delay T2 prevents the occurrence of current troughs. The delay on
downward crossing of threshold T1 provides immunity to random dips, thereby preventing
spurious triggering of the output relay.
Note: In underload function, the absolute value of the hysteresis
cannot be greater than the measurement range maximum.
SPECIFICATIONS:
Input power . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 VDC, 24, 110 to 230 VAC
Power Consumption . . . . . . . . . . . . . . . . . . . . 3 VA
Hysteresis Selection . . . . . . . . . . . . . . . . . . . . 5 to 50% of Displayed Threshold
Threshold Value . . . . . . . . . . . . . . . . . . . . . . . 10 to 100% of Measurement Range
Setting Accuracy-Threshold. . . . . . . . . . . . . . ±10%
Repeat Accuracy. . . . . . . . . . . . . . . . . . . . . . . ±0.1% with constant parameters
Voltage drift. . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.1% (±10% of input voltage)
Temperature drift . . . . . . . . . . . . . . . . . . . . . . ±0.02%
Power up delay T2. . . . . . . . . . . . . . . . . . . . . . 1 s to 20 s, ±30%
Delay on threshold overrun T1 . . . . . . . . . . . . 0.1 s to 3 s, ±20%
Output relay . . . . . . . . . . . . . . . . . . . . . . . . . . SPDT Relay
Contact Material . . . . . . . . . . . . . . . . . . . . . . . AgCdO
Maximum Loading . . . . . . . . . . . . . . . . . . . . . 8A AC resist
Operating temperature . . . . . . . . . . . . . . . . . . to 140°F, -20°C to 60°C
Storage temperature . . . . . . . . . . . . . . . . . . . . -30°C to 70°C
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (140g)
PART NUMBER FOR ORDERING
Note: 24VDC input power version. The input voltage and the measured current must be from separate sources.
The “negative” poles of the auxiliary power supply and the measurement circuit are connected inside the unit
Measurement
range
Type
Measurement
range
Supply voltage
24 VDC
24 VAC
48 VAC
120 VAC
230 VAC
Current transformer
204 Airline Drive, Suite 300, Coppell, Texas 75019 / Tel: (800) 677-5311 / FAX: (800) 677-3865 / www.crouzet-usa.com
Sensitivity
resistance
Types
Inputs
Input
2 to 500 mA
84 871 020
84 871 021
84 871 022
84 871 023
84 871 024
EIL
20 mA 100 mA 500 mA
E1-M
2 to
5 Ω
10 to
E2-M
EIL
1 Ω
0.1 to 10 A
84 871 030
84 871 031
84 871 032
84 871 033
84 871 034
50 to
0.2 Ω
E3 M
EIH
Products and specifications subject to change without notice.
.01 to
±15%, 50/60 Hz
0.1 Ω
E1-M
1 A
Consult factory for application assistance.
0.02 Ω
EIH
E2-M
.5 to
5 A
10 to 100 A
84 871 040
84 871 041
84 871 042
84 871 043
84 871 044
26 852 304
with current
transformer
0.01 Ω
EIT
E3 M
10 A
1 to
100 A
E1-M
10 to
20 Ω
EIT
DIMENSIONS: inches (mm)
UNDER function
UPPER function
UNDER function
UPPER function
Threshold I
Threshold I
Hysteresis
Hysteresis
~
~
Threshold I
Threshold I
Hysteresis
Hysteresis
A1&A2 power supply
WIRING DIAGRAM
Un
Un
EIL
Transformer
ref. 26 852 304
(3.5)
.14˝
A1 11
E1 E2 E3
14 12
T2
T2
AC/DC CONTROL WITH MEMORY
AC/DC CONTROL WITHOUT MEMORY
EIH
3.94˝ (100)
T2
T2
M
A2
2.84˝
T1
T1
12
T1
T1
(72)
11
14
❶
❶
26 852 304
transformer
~
~
.20˝
(5)
T2
T2
A1&A2 power supply
T1
T1
WIRING DIAGRAM
CONTROLS
1.50˝
(38)
(22.5)
2 tag connectors
.89˝
T1
T1
(4.2)
.17˝
EIT
A1 11
E1 E2 E3
14 12
Ø(.13)
T2
.51˝
T2
A2
Unit power-up
Controlled current
Hysteresis
Hysteresis
Controlled current
❶
M
Ø (6.35)
(20)
.78˝
memory
Unit power-up
Controlled current
Hysteresis
Controlled current
Hysteresis
12
11
14
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