CR4340-20 CR Magnetics Inc, CR4340-20 Datasheet - Page 2

• Manufacturer Part Number: CR4340-20
• Description: SENSOR CURRENT 20A 120V BI MOD
• Manufacturer: CR Magnetics Inc
• Series: -r

Specifications of CR4340-20

• Current - Sensing: 20A
• Accuracy: ±0.5%
• Sensitivity: -
• Current - Supply: -
• Sensor Type: Open Loop
• Voltage - Supply: 120V
• Output: 4 ~ 20mA DC
• Frequency: 50/60Hz
• Response Time: 150ms
• Polarization: Unidirectional
• Operating Temperature: -30°C ~ 60°C
• Package / Case: Module
• Other names: CRR4340-20; Q3387659

in (mm)
An external current transformer may be used with the transmitter by
routing the secondary leads through the window opening. Use the
CR4340-5 current transmitter when using 5-Amp secondary instrument
grade current transformer. For additional details on current transformers,
see page 22.
CR Magnetics, Inc. 544 Axminister Dr. Fenton MO USA 63026 V: 636.343.8518 F: 636.343.5119
Web: http://www.crmagnetics.com
#8-32 TERMINALS
4 PLACES
A
C
Case Style 2
A
120 ± 10%
C
4.50
3.50
Vac
I
.44 TYP.
PRIMARY
.50
4.12
.06
4.88
4.68
2.13
DIA.
#6-32 TERMINALS
4 PLACES
AC AC
.94 DIA.
2.68
1.70
Typical Applications
+ -
Case Style 1
Application Notes
I
CONTROL
.23
4.50
1.97
INTERCONNECT
RESISTANCE
2.37
11
RANGE SWITCH
I
CONTROL
I
PRIMARY
FS
The scaling factor may be changed by threading the primary current-
carrying wire several times through the window opening. The "actual"
measurement range will be the name plate range divided by the number
of wire passes. For example, the CR4340-30 has the name plate range
of 0-30 ACA. Two passes of the wire through the window opening will
then provide an effective range of 0-15 ACA (30÷2).
0 to 1000 ohms
X 16 + 4
INSTRUMENTATION
+
RESISTANCE
4-Wire Current Transmitter
28
24
20
16
12
8
4
—
FULL-SCALE INPUT CURRENT
FS = FULL-SCALE CURRENT IN AMPS RMS
I
I
4-20 mA Output
PRIMARY = MONITORED CURRENT IN AMPS RMS
CONTROL = LOOP CURRENT IN mA dc
25
PERCENTAGE FULL-SCALE (FS)
CONTROL CURRENT OUT
Email: [e-mail]
50
VS
75
100