EMERSON SE53403000 40 HP M N TI
The CR5395 Series of DC Current Sensing Relays are designed to provide a
contact output that becomes active when the setpoint DC Current is reached. Similar
to the CR4395, this product includes adjustable activation delay, adjustable setpoint,
and choice of output styles. An important feature of this design is the use of a magnetic
modulator to detect the magnetic fields generated by current in the conductor.
This enables the use of torroid current transformer technology that inherently rejects
the effects of outside magnetic influences. Hall effects and other types of technologies
must be on-site calibrated to adjust for stray magnetic fields present in most industrial
applications.
The CR4395 Series of AC Current Sensing Relays are designed to provide a
contact output that becomes active when the setpoint AC Current is reached. Available
in active high or active low, this relay is a fully featured product, with an adjustable
activation delay, adjustable setpoint, dry contact relay or solid state outputs,
and remote sensing capabilities.
The CR3595 Process Alarm Switch is a product that can be added to standard
analog process signals and create alarms and level indication. Adjustable time
delays, various power supplies, current ranges, and sensor configurations are available.
The CR9300, CR9400, CR9500 and CR9600 Current Switches
and Sensors are go/no-go proving switches that are self powered with solid state
dry contact modeled outputs. Output styles are designed to provide the highest current
switching capability possible at the lowest possible switchpoint. Normally closed
and normally open logic are available.
Sensing Relays and Switches
CR Magnetics Sensing Relays and Switches provide a simple method of monitoring electrical properties and alerting a system to
a fault or event condition. These products are available with a wide variety of configurations, including time delays, various output
styles and logic. From simple proving switches, to fully featured high performance ground fault sensing, our relays and switches will
provide the designer with the tools needed to implement many different control and event sensing schemes.
Sensing Relays and Switches
The CR7310 Ground Fault Sensor provides an easy method in realizing
equipment AC ground fault protection. Using the same footprint as our other fully
featured products, the CR7310 can sense currents down to 10 mAAC and up to
100 AAC. Various power supplies, current ranges, and sensor configurations are
available.
SENSE APPLICATIONS AGENCY
✔ ✔ ✔
60
D
✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
✔ ✔
✔
✔ ✔ ✔ ✔
✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
✔ ✔ ✔ ✔
✔ ✔ ✔ ✔
✔ ✔ ✔ ✔ ✔ ✔
✔
✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
✔ ✔ ✔
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✔ ✔ ✔ ✔ ✔ ✔ ✔
Selection Guide
AC Current Sensing
DC Current Sensing
DC Voltage Sensing
Ground Fault
Relay Output
Solid State Output
Time Delay
Adjustable Setpoint
Wire Mount
MODEL NUMBER
4395 - AC CURRENT
5395 - DC CURRENT
7310 - GROUND FAULT
DIN Rail Mount
Panel Mount
Remote Sensing
Split Core
UL/CSA Approved
CR9450
CR9480
CR9421
CR9380
CR9350
CR9321
CR3595
CR7310
CR5395
CR4395
LOGIC
EH - ENERGIZE HIGH
LH - LATCH HIGH
EL - ENERGIZE LOW
LL - LATCH LOW
POWER SUPPLY
120 - 120 VAC
240 - 240 VAC
24D - 24VDC
ACV - 80 TO 240 VAC
TRIP RANGE
.011 - 10 mA to 100 mA*
.11 - 100 mA to 1 A*
110 - 1 A to 10 A
330 - 3 A to 30 A
660 - 6 A to 60 A
101 - 10 A to 100 A
* - 7310 ONLY
TIME DELAY
A - .5 TO 6 SEC
B - 2 TO 25 SEC
C - .1 TO 1 SEC
X - NO DELAY
CALIBRATION
CD - CALIBRATED DIAL
FP - FIXED SETPOINT
OUTPUT STYLE
ELR - FORM C RELAY
NPN - ISOLATED TRANSISTOR
TRC - ISOLATED TRIAC
SENSOR
STYLE
I - INTERNAL
R - REMOTE
MODEL NUMBER
3595 - 0-5 VDC, 0-10 Vdc, 4-20 mA
MODEL NUMBER
9321 - WIRE MOUNTED 9480 - SPLIT CORE
9350 - WIRE MOUNTED 9521 - WIRE MOUNTED
9380 - SPLIT CORE 9550 - WIRE MOUNTED
9421 - WIRE MOUNTED 9580 - SPLIT CORE
9450 - PANEL MOUNTED
OUTPUT STYLE
NPN - PULL LOW NPN
PNP - PUSH HIGH PNP
ACA - AC VOLTAGE SWITCH
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
CR9550
CR9580
CR9521
RoHS Compliant
CR - - - - - - -
PART ORDERING FOR CR4395, CR5395 CR7310
PART ORDERING FOR CR3595, CR9321 AND CR9600
M MountingCase
(Optional)
CR CR - -
Relays, Switches, & Sensors
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
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D
61
TYPICAL RELAY APPLICATIONS
CR
CR
M
3
5
10
15
30
25
20
"A"
"B"
3
5
10
15
30
25
20
OPEN HEATER / LAMP DETECTOR
The relay may alarm signal to indicate an open
heater element. The current-carrying wire is routed through the window
opening. With the"EL" (Energized on Low current) option, when the
heater element draws current above the trip point, the relay remains deenergized.
If the element becomes open, the current level will be
reduced, causing the relay to become energized. Supply power is
constantly supplied to the relay with the "A" connection and the relay will
cycle every time the temperature controller cycles. Using the alternate
connection with line "B", power is provided to the relay only when the
temperature controller is cycled on. With this connection, the relay will
energize only when the element is open.
The trip ranges shown on page 15 represent one wire pass through the
window opening. The trip range may be changed by threading the
current-carrying wire through the window opening several times, as
shown above. The "actual" trip range would be the relay name plate
range divided by the number of wire passes through the opening. For
example, a name plate range of 6.0 to 60 ACA with three wire passes
would provide an actual range of 2.0 to 20 ACA (6 3=2.0 & 60 3=20).
3
5
10
15
30
25
20
EXTERNAL CURRENT TRANSFORMERS
The relay may be used with an external split or solid-core current
transformer. The external transformer can be used to access remote
loads or where the current-carrying wire is too large to fit through the
window opening in the relay. A standard, 5 Amp secondary, commercial
grade current transformer (see page 25) would be attached with the
secondary leads threaded twice through the window opening, as
illustrated. The trip range option "110" (1.0 to 10 ACA) would then
provide full-scale adjustment for the transformer.
MOTOR OVER / UNDER MONITOR
The relay may be used to monitor the operational load of a motor. One
leg of the motor wiring is routed through the window opening. With the
"EH" (Energized on High) option, when the motor current draw exceeds
the trip point, the relay will energize and open the motor starter. The time
delay would be set long enough to inhibit tripping during high inrush
starting current. Note that an electrical fuse and other overload devices
will still be required for complete motor protection.
ONE-WIRE PASS THREE-WIRE PASS
CONNECTION TO INDICATOR LAMP
The current switch may be used to drive directly an indicating lamp.
When using the AC output version, either of the two black leads may be
attached to the power source. A snubber network is required when
connecting to an indictive device such as an electromechanical relay.
CONNECTION TO PLC
The current switch may be connected directly to a PLC. Supply power
may be provided from the PLC, as shown, or from an external power
source. When using a transistor output, the negative or black lead from
the switch is attached to the negative side of the supply.
CR
CR
M
351015
2350 20
"A"
"B"
3510 15
2350 20
OPEN HEATER / LAMP DETECTOR
The relay may be used to provide an alarm signal to indicate an open
heater element. The current-carrying wire is routed through the window
opening. With the"EL" (Energized on Low current) option, when the
heater element draws current above the trip point, the relay remains deenergized.
If the element becomes open, the current level will be
reduced, causing the relay to become energized. Supply power is
constantly supplied to the relay with the "A" connection and the relay will
cycle every time the temperature controller cycles. Using the alternate
connection with line "B", power is provided to the relay only when the
temperature controller is cycled on. With this connection, the relay will
energize only when the element is open.
The trip ranges shown on page 15 represent one wire pass through the
window opening. The trip range may be changed by threading the
current-carrying wire through the window opening several times, as
shown above. The "actual" trip range would be the relay name plate
range divided by the number of wire passes through the opening. For
example, a name plate range of 6.0 to 60 ACA with three wire passes
would provide an actual range of 2.0 to 20 ACA (6÷3=2.0 & 60÷3=20).
351015
2350 20
EXTERNAL CURRENT TRANSFORMERS
The relay may be used with an external split or solid-core current
transformer. The external transformer can be used to access remote
loads or where the current-carrying wire is too large to fit through the
window opening in the relay. A standard, 5 Amp secondary, commercial
grade current transformer (Section F, Pages 92-105) would be attached with the
secondary leads threaded twice through the window opening, as
illustrated. The trip range option "110" (1.0 to 10 ACA) would then
provide full-scale adjustment for the transformer.
MOTOR OVER / UNDER MONITOR
The relay may be used to monitor the operational load of a motor. One
leg of the motor wiring is routed through the window opening. With the
"EH" (Energized on High) option, when the motor current draw exceeds
the trip point, the relay will energize and open the motor starter. The time
delay would be set long enough to inhibit tripping during high inrush
starting current. Note that an electrical fuse and other overload devices
will still be required for complete motor protection.
ONE-WIRE PASS THREE-WIRE PASS
CONNECTION TO INDICATOR LAMP
The current switch may be used to drive directly an indicating lamp.
When using the AC output version, either of the two black leads may be
attached to the power source. A snubber network is required when
connecting to an indictive device such as an electromechanical relay.
CONNECTION TO PLC
The current switch may be connected directly to a PLC. Supply power
may be provided from the PLC, as shown, or from an external power
source. When using a transistor output, the negative or black lead from
the switch is attached to the negative side of the supply.
Typical Applications
Relays, Switches, & Sensors
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
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MOTOR OVER / UNDER MOTOR
to monitor the operational load of a motor. One leg of the
motor wiring is routed through the window opening. With the “EH” (Energized on
High) trip status, when the motor current draw exceeds the trip point, the relay will
energize and open the starter motor. The time delay would be set long enough to inhibit
tripping during high inrush starting current. Note that an electrical fuse and other
overload devices will be required for complete motor protection.
CONNECTION TO INDICATOR LAMP
The current switch may be used to directly an indicating lamp. When using the AC
output version, either of the two black leads may be attached to the power source.
A snubber network is required when connecting to a indictive device such as a eletromechanical
relay.
CONNECTION TO PLC
The current switch may be connected directly to a PLC. Supply power may be provided
from the PLC, as shown, or from an external power source. When using a transistor
output, the negative or black lead from the switch is attached to the negative side of
the supply.
EXTERNAL CURRENT TRANSFORMERS
relay may be used with an external split or solid-core current transformer. The external
transformer can be used to access remote loads or where the current-carrying wire is too
large to fit through the window opening in the relay. A standard, 5 amp secondary, commercial
grade current transformer (Section F, Pages 94-107) would be attached with the secondary
leads threaded twice through the window opening, as illustrated. The trip range option
-110 (1.0 to 10 ACA) would then provide full-scale adjustment for the transformer.
ONE WIRE PASS THREE WIRE PASS
The trip ranges shown on Page 63 represent on wire pass through the window opening.
The trip range may be changed by threading the current-carrying wire through
the window opening several times, as shown above. The “actual” trip range would be
the relay name plate range divided by the number of wire passes through the opening.
I.E. a name plate range of -660 (6.0 to 60 ACA) with three wire passes would
provide an actual range of 2.0 to 20 ACA (6/3=2.0 & 60/3=20).
OPEN HEATER / LAMP DETECTOR
may be used to provide an alarm signal to indicate an open heater element.
The current-carrying wire is routed through the window opening. With the
“EL” (Energized on Low) current status option, when the heater element draws current
above the trip point, the relay remains de-energized. If the element becomes
open, the current level will be reduced causing the relay to become energized. Supply
power is constantly supplied to the relay with the “A” connection and the relay
will cycle every time the temperature controller cycles. Using the alternate connection
with line “B”, power is provided to the relay only when the temperature controller
is cycled on. With this connection, the relay will energize only when the
element is open.
E234389
62 Relays, Switches, &
Sensors
D
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
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The Professional
Energy Monitoring
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M N TI
Current Sensing Relay
VOLTAGE LOAD TYPE
240 VAC
240 VAC
N.O. CONTACT N.C. CONTACT
Resistive
Motor
20A
2HP
10A
1/2 HP
125 VAC
28 VDC
Motor
Resistive
1HP
20A
1/4 HP
10A
The CR4395 Series, Current Sensing Relay provides an effective
and highly stable method for monitoring electrical current.
The current-carrying wire is routed through the opening extending
from the top of the case. When current reaches the level set
by the trip point adjustment, the relay trips and starts the adjustable
timer. After the timer cycles the electromechanical relay
is energized. A precision voltage reference circuit ensures a
highly repeatable trip point.
Applications
Monitor Electrical Heater Elements
Sense Motor Over/Under Loads
Detect Lamp burn-out
Indicate Phase Loss
Features
Variable Trip Point and Time Delay
Monitors Currents from 1 AC to 100 AC Amps
Electrical Isolation Between Circuits
Output Relay Rated up to 20 Amps
LED Trip Status Indicator
Dead Band Prevents Relay Chatter
Calibrated Dial Option Available
External Current Transformers Available
Specifications
Mounting:
3/16” dia. clearance holes on 115/16” by 215/16”centers
Environmental:
Operating Temperature: -30° C to +60° C
Storage Temperature: -55° C to +85° C
Power-On Delay: 100 MS MAX
Hysteresis: 5% Max.
Input Supply Power:
Typical 80mA Max 100mA
Sensed Current:
Max. Continuous: 200% Full Scale
Frequency: 60-400 Hz *
*All specifications for operation at 60 Hz only
Altitude: 2000 meters max.
(Contact factory for High Altitude applications)
Weight 0.5 LBS.
Regulatory Agencies
OUTPUT OPTIONS
The Relay is available with three different output
configurations, electromechanical relay, optoisolated
NPN transistor or optoisolated triac.
Specify desired selection in part number.
DC SWITCHING (-NPN)
Vce (full off): 30 VDC max.
Isink (full on): 120 mADC max.@ rated full-on
Vce (full on): 1.5 VDC @ 120 mADC Isink
Off state leakage current: 5ua @ 30 VDC
(typical)
RELAY (-ELR)
Arrangement: 1 Form C (SPDT)
Contact Material: Silver-cadmium oxide
Terminals: 3 1/4” Male QC
Mechanical Life: 10 million operations,
typ.@ rated load
Electrical Life: 100,000 operations,
typ. @ rated load
Initial Contact Resistance:
50 milliohms max. @ 500 mA, 12 VDC
Contact Rating: UL508/873 & CSA
AC SWITCHING (-TRC)
Off state voltage: 240 VAC RMS max.
Minimum switch voltage: 24 VAC RMS
On state current: 0.5 AAC RMS max. continuous
Switching mode: Zero crossing
Off state leakage: 60 ua @ 240 VAC max.
Terminals: 2 @ 1/4” Male QC
CR4395 Series
OUTLINE DRAWING
TRIP STATUS
EH - Energized on High, trips
when sense current is above trip
point and returns to non-trip
status when sense current is
below the trip point.
EL - Energized on Low, trips
when sense current is below trip
point and returns to non-trip
status when sense current is
above the trip point.
LH - Latch on High, trips when
sense current is above trip point
and remains tripped until
supply power is removed.
LL - Latch on Low, trips when
sense current is below trip point
and remains tripped until supply
power is removed.
SUPPLY VOLTAGE
AC
120 - 120 VAC
240 - 240 VAC
DC
24D - 24 VDC
All supply voltage tolerances
are ± 10 %
TRIP RANGE
110 - 1.0 to 10 AAC
330 - 3.0 to 30 AAC
660 - 6.0 to 60 AAC
101 - 10 to 100 AAC
The trip ranges shown are for
one wire pass through the
window opening. The trip range
may be proportionally lowered
with additional wire passes
through the window.
TRIP POINT DIAL
CD - Calibrated Dial
FP - Fixed Trip Point
(Specify value of fixed
trip point with order)
I - INTERNAL TRANSFORMER
R1 - REMOTE TRANSFORMER
w/ CRGFS-100
(1.60” window diameter)
R2 - REMOTE TRANSFORMER
w/ CRGFS-200
(1.75” window diameter)
3
5
10
15
30
20
D CURRENT TRIP
25
No adjustment
dial provided with
the fixed set
point option
- CD - FP
-3.30 trip range shown
OUTPUT OPTIONS
ELR
Electromechanical
Relay
NPN
Optoisolated
NPN Transistor
TRC
Optoisolated
Triac, Zero Crossing
NC NO COM
-
+
+
D
63
Current Sensing Relay
CR4395 Series
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: 緯軒工業。歡迎咨詢 E-mail: 緯軒工業。歡迎咨詢
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Top view of Current Sensing Relay Shown with Remote Current
Transformer Option (-R)
A
B
C
D
Remote Current Transformers CRGFS - Series
CRGFS A B C D
-100 2.88
73.16
1.60
40.58
12
304.8
0.79
20.07
-200 3.25
82.55
1.75
44.45
12
304.8
0.82
20.83
TRIP ON DELAY
A - .5 to 6 Sec.
B - 2 to 25 Sec.
C - .1 to 1 Sec.
X - none
Time-on delay is the time from when the relay trips to
when the output energizes. The ranges are
guaranteed minimum, actual range may be slightly
greater.
PART NUMBER
CR4395 - - - - - - -
Relays, Switches, & Sensors
Example Part Numbers:
CR4395-EH-120-110-CD-ELR-I (Relay with CT on board)
CR4395-EL-240-330-CD-NPN-R1 (Relay with external CRGFS-100)
64 Relays, Switches, &
Sensors
D
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: 緯軒工業。歡迎咨詢 E-mail: 緯軒工業。歡迎咨詢
The Professional
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M N TI
Direct Current Sensing Relay
CR5395 Series
VOLTAGE LOAD TYPE
240 VAC
240 VAC
N.O. CONTACT N.C. CONTACT
Resistive
Motor
20A
2HP
10A
1/2 HP
125 VAC
28 VDC
Motor
Resistive
1HP
20A
1/4 HP
10A
The CR5395 Series, Direct Current Sensing Relay provides a
precision and cost effective method for monitoring Direct Current.
Magnetic Modulator Technology is utilized for the current
sensing to provide a stable and highly repeatable current trip.
The current-carrying wire is routed through the opening extending
through the top of the case. When current reaches the level
set by the trip point adjustment, the relay trips and starts the adjustable
timer. After the timer cycles the electromechanical relay
energizes.
Applications
DC motor drives
Battery Chargers
Power Supply Management
Uninterruptible Power Systems
Motor Application
Features
Variable Trip Point and Time Delay
Bi-polar
Monitors Currents from 1.0 ADC to 100 ADC
Electrical Isolation Between Circuits
Output Relay Rated up to 20 Amps
LED Trip Status Indicator
Dead Band Prevents Relay Chatter
Calibrated Dial
External Current Transformers Available
Specifications
Mounting:
3/16” dia. clearance holes on 115/16”by 215/16”centers
Environmental:
Operating Temperature: -30° C to +70° C
Storage Temperature: -55° C to +85°
0-95% RH, Non-condensing
Input Supply Power:
Typical 80mA Max 100mA
Sensed Current: Max. Continuous: 200% Full Scale
Altitude: 2000 meters max.
(Contact factory for High Altitude applications)
Weight 0.5 LBS.
Regulatory Agencies
OUTPUT OPTIONS
The Relay is available with three different output
configurations, electromechanical relay, optoisolated
NPN transistor or ZeroCrossing optoisolated
triac. Specify desired selection in part
number.
DC SWITCHING (-NPN)
Vce (full off): 30 VDC max.
Isink (full on): 120 mADC max.@ rated full-on
Vce (full on): 1.5 VDC @ 120 mADC Isink
Off state leakage current: 5ua @ 30 VDC
(typical)
Terminals: 21/4” Male QC
RELAY (-ELR)
Arrangement: 1 Form C (SPDT)
Contact Material: Silver-cadmium oxide
Terminals: 31/4” Male QC
Mechanical Life: 10 million operations,
typ.@ rated load
Electrical Life: 100,000 operations,
typ. @ rated load
Initial Contact Resistance:
50 milliohms max. @ 500 mA, 12 VDC
Contact Rating: UL508/873 & CSA
AC SWITCHING (-TRC)
Off state voltage: 240 VAC RMS max.
Minimum switch voltage: 24 VAC RMS
On state current: 500 mA RMS max. continuous
Switching mode: Zero Crossing
Off state leakage: 60 ua @ 240 VAC max.
Terminals: 2 @ 1/4” Male QC
E234389
65
Direct Current Sensing Relay
OUTLINE DRAWING CR5395 Series
A
B
C
D
Remote Current Transformers CRDCS - Series
Relays, Switches, & Sensors
D
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
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SUPPLY VOLTAGE
ACV - 85 to 265 VAC/VDC
24D - 24 VDC
All supply voltage tolerances
are ± 10 %
Top view of Current Sensing Relay Shown with Remote Current
Transformer Option (-R)
PART NUMBER
CR5395 - - - - - - -
CRDCS A B C D
-100 2.88
73.16
1.60
40.58
12
304.8
0.79
20.07
-200 3.25
82.55
1.75
44.45
12
304.8
0.82
20.83
TRIP STATUS
EH - Energized on High, trips
when sense current is above trip
point and returns to non-trip
status when sense current is
below the trip point.
EL - Energized on Low, trips
when sense current is below trip
point and returns to non-trip
status when sense current is
above the trip point.
LH - Latch on High, trips when
sense current is above trip point
and remains tripped until
supply power is removed.
LL - Latch on Low, trips when
sense current is below trip point
and remains tripped until supply
power is removed.
TRIP RANGE
110 - 1.0 to 10 ADC
330 - 3.0 to 30 ADC
660 - 6.0 to 60 ADC
101 - 10 to 100 ADC
The trip ranges shown are for
one wire pass through the
window opening. The trip range
may be proportionally lowered
with additional wire passes
through the window.
TRIP POINT DIAL
CD - Calibrated Dial
FP - Fixed Trip Point
(Specify value of fixed
trippoint with order)
3
5
10
15
30
20
D CURRENT TRIP
25
No adjustment
dial provided with
the fixed set
point option
- CD - FP
-3.30 trip range shown
OUTPUT OPTIONS
ELR
Electromechanical
Relay
NPN
Optoisolated
NPN Transistor
TRC
Optoisolated
Triac, Zero Crossing
NC NO COM
-
+
+
TRIP ON DELAY
A - .5 to 6 Sec.
B - 2 to 25 Sec.
C - .1 to 1 Sec.
X - none
Time-on delay is the time from when the relay trips to
when the output energizes. The ranges are
guaranteed minimum, actual range may be slightly
greater.
I - INTERNAL TRANSFORMER
R1 - REMOTE TRANSFORMER
w/ CRDCS-100
(1.60” window diameter)
R2 - REMOTE TRANSFORMER
w/ CRDCS-200
(1.75” window diameter)
Example Part Numbers:
CR5395-EH-ACV-110-CD-ELR-I (Relay with CT on board)
CR5395-EL-24D-330-CD-NPN-R1 (Relay with external CRDCS-100)
3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: 緯軒工業。歡迎咨詢 E-mail: 緯軒工業。歡迎咨詢
The Professional
Energy Monitoring
Company
ISO 9001:2008 Quality Management System
M N TI 66 Relays, Switches &
Sensors
D
Ground Fault Sensor
CR7310 Series
The CR7310 Series, Ground Fault Sensor provides a reliable
and cost effective method for sensing ground faults. The current-
carrying wires are routed through the opening extending
from the top of the case. When ground current reaches the
level set by the trip point adjustment, the relay trips, illuminates
the tripped LED and provides an output signal. A precision
voltage reference circuit ensures a highly repeatable trip point.
The Sensor is rated as a Class 1 device.
OUTPUT OPTIONS
The Relay is available with three different ouput
configurations, electromechanical relay, optoisolated
NPN transistor or zero-crossing optoisolated
triac. Specify desired selection in part
number.
DC SWITCHING (-NPN)
