Relay Modules for Compact FieldPoint
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cFP-RLY-421
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Ordering Information
AC
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NI cFP-RLY-421 ..........................................................777318-421
NI cFP-RLY-423 ..........................................................777318-423
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+
NI cFP-2020 ..............................................................777317-2020
NI cFP-BP-4 ..................................................................778617-04
NI cFP-CB-1 ..................................................................778618-01
NI PS-5 Power Supply ..................................................778805-90
NI Developer Suite Professional Control Edition..........777906-03
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Visit
ni.com/info
and enter cfprly421, and/or cfprly423.
cFP-RLY-423
Figure 1. Wiring Schematics for RLY Modules
Specifications
Typical for –40 to 60 °C unless otherwise noted.
Relay Characteristics
Number of channels
cFP-RLY-421 ...............................................
cFP-RLY-423 ...............................................
Relay type
cFP-RLY-421 ...............................................
cFP-RLY-423 ...............................................
Maximum switching capacity (resistive load)
AC ............................................................
DC ............................................................
(cFP-RLY-421) .............................................
(cFP-RLY-423) .............................................
8
4
SPST, normally open, nonlatching
SPDT, nonlatching
1.5 A at 250 VAC
1.5 A at 0–35 VDC
1.5 A at 40 VDC
1 A at 55 VDC
0.4 A at 120 VDC
10 mA at 5 VDC
(120 VDC/250 VAC)
0.12 µA
8 µA
100 mΩ
<0...7> or <0...3>........................................
Dimensions (including terminal base)..............
Weight
cFP-RLY-421 ...............................................
cFP-RLY-423 ...............................................
Indicates on/off state of each contact
10.9 by 10.9 by 9.1 cm (4.3 by 4.3 by 3.6 in.)
136 g (4.8 oz)
156 g (5.5 oz)
Isolation Voltage
Maximum isolation voltage ............................. 250 V
rms
, Installation Category II
Channel-to-channel isolation ........................... No isolation between channels
Transient overvoltage....................................... 2,300 V
rms
Environmental
FieldPoint modules are intended for indoor use only. For outdoor use, they must be mounted inside
a sealed enclosure.
Operating temperature..................................... -40 to 60 °C
Storage temperature ........................................ -55 to 85 °C
Relative humidity ............................................. 10 to 90%, noncondensing
Maximum altitude ............................................ 2,000 m; at higher altitudes the isolation voltage ratings
must be lowered.
Pollution Degree............................................... 2
Minimum switching load .................................
Off-state leakage current.................................
DC ............................................................
50/60 Hz ....................................................
On resistance (typical)......................................
Expected relay life
Mechanical ................................................ 2 x 10
7
operations/s (cFP-RLY-421)
1 x 10
7
operations/s (cFP-RLY-423)
Electrical (at 30 cpm)................................. 300,000 operations at 1.5 A, 35 VDC
100,000 operations at 1.5 A, 250 VAC
Operate time
cFP-RLY-421 ............................................... <10 ms
cFP-RLY-423 ............................................... <10 ms typ, 13 ms max
Release time
cFP-RLY-421 ............................................... <10 ms
cFP-RLY-423 ............................................... 5 ms typ, 7 ms max
Bounce time
cFP-RLY-421 ............................................... 10 ms max
cFP-RLY-423 ............................................... 3 ms typ, 6 ms max
Contact material
cFP-RLY-421 ............................................... Gold-plated silver cadmium oxide
cFP-RLY-423 ............................................... Silver cadmium oxide
Safety
This product is designed to meet the requirements of the following standards of safety for electrical
equipment for measurement, control, and laboratory use:
• IEC 61010-1, EN 61010-1
• UL 3121-1, UL 61010C-1
• CAN/CSA C22.2 No. 1010.1
For UL, hazardous location, and other safety certifications, refer to the product label or to
ni.com
Electromagnetic Compatibility
CE, C-Tick, and FCC Part 15 (Class A) Compliant
Emissions.......................................................... EN 55011 Class A at 10 m
FCC Part 15A above 1 GHz
Immunity........................................................... EN 61326:1997 +A2:2001, Table 1
For EMC compliance, you must operate this device with shielded cabling.
CE Compliance
This product meets the essential requirements of applicable European Directives, as amended for
CE Marking, as follows:
Low-Voltage Directive (safety)......................... 73/23/EEC
Electromagnetic Compatibility
Directive (EMC).......................................... 89/336/EEC
Refer to the Declaration of Conformity (DoC) for this product for any additional regulatory compliance
information. To obtain the DoC for this product, visit
ni.com/hardref.nsf/
and search by model number
or product line.
Power Requirement (from Network Module)
cFP-RLY-421 ...................................................... 1.95 W
cFP-RLY-423 ...................................................... 1.0 W
Physical Characteristics
LED indicators
Power (green) ............................................ Indicates power is on and self-test passed
Ready (green)............................................. Indicates module is configured and ready
2
National Instruments • Tel: (800) 433-3488 • Fax: (512) 683-9300 • info@ni.com • ni.com
NI [ NATIONAL INSTRUMENTS CORPORATION ]
