H739 SERIES & H939 SERIES
VERIS INDUSTRIES
Current Switches with Relay:
Adjustable Trip Point, High
Voltage Output
Status And Control In One Package
DESCRIPTION
Hawkeye Relay Combination Series high voltage output current switches are the
ideal solution for the automation installer. These units combine a current switch
and relay into a single package, reducing the space required for total control of fans
and pumps. The integrated current switch and relay operate independently of one
another. All relay connections are externally available for maximum exibility.
These products perform the functions of start/stop and status monitoring with one
device instead of two.
APPLICATIONS
● Starting/stopping and monitoring positive status of motors
● Detecting belt loss and coupling shear
current monitoring
DETECTS BELT LOSS/COUPLING SHEAR!
DETECTS BELT LOSS/COUPLING SHEAR!
Fan/pump
Calibrated
Trip Point
O O
Now you can easily detect when drive belts slip, break, or pump couplings shear.
In fact, a typical HVAC motor that loses its load has a reduction of current draw
of up to 50%. That’s why our sensors are the industry standard for status.
Loss of Belt/Coupling Shear
On
Electrical
Failure
H939
H739
FEATURES
● Combines command relay & fan/pump status sensor in a single, easy to
install unit
● Reduces number of components installed...ts bet ter in small starter enclosures
● Command relay and status in a single unit
● Easier to install than dierential pressure switches...no additional wiring
needed
● Detect belt loss and motor failure...ideal for fan and pump status
● Bracket on H939, H949, and H959 can be installed in three dierent
congurations...added exibility
● H749 and H949 feature SPDT command relay...saves installation time
● Reduced charges from electrician
● Relay and status LEDs for easy setup
● Polarity insensitive status output...fast trouble-free installation
● Adjustable trip point for current sensor status...ts many applications
● 5-year warranty
RELAY CONTACT RATINGS
Hx39, Hx59 (SPST, N.O.)
Resistive................................. 10A@250VAC, 30VDC
Inductive................................ 5A@250VAC, 30VDC
Hx49 (SPDT)
Resistive.............................. 8A@250VAC, 30VDC
Inductive............................. 3.5A@250VAC, 30VDC
TM
TYPICAL COIL PERFORMANCE
Voltage AC DC
24V................................... 10mA 10mA
12V.................................................................... 20mA
Pull In Voltage
Hx39 .............................................................. 20.1VDC
Hx49 .............................................................. 20.1VDC
Maximize Reliability
Minimize Installed Cost
SPECIFICATIONS
Sensor Power Induced from monitored conductor
Insulation Class 60 0VAC RM S
Frequency Range 50/60 H z
Temperature Range -15° to 60°C (5° to 140°F)
Humidity Range 10-90% RH non-condensing
Hysteresis 10% Typical
Terminal Block Wire Size 24-14 AWG (0.2 to 2.1 mm2)
Terminal Block Torque 3.5 to 4.4 in-lbs (0.4 to 0.5 N-m)
Agency Approvals UL 508 open device listing
Do not use the LED status indicators as evidence of applied voltage.
800.354.8556
Year
5
Warranty
+1 503.598.4564
www.veris.com
Hx59 .............................................................. 8.4VDC
Drop Out Voltage
Hx39 .............................................................. 5.2VDC
Hx49 .............................................................. 5.2VDC
Hx59 .............................................................. 3.0VDC
HQ0 001761.C 01131
800.354.8556
+1 503.598.4564
DIMENSIONAL DRAWINGS
H739/H749
Removable/Adjustable Mounting Bracket
0.7"
(19 mm)
0.9"
(23 mm)
3.0" **
(75 mm)
www.veris.com
**3.1”
(79 mm)
H939/H949/H959
Removable Mounting Bracket
1.1”
(26 mm)
0.8”
(21 mm)
1.0”
(25 mm)
Bracket can
be mounted
on three sides
for added
installation
exibility.
Self-gripping Iris
4.2"
(106 mm)
2.8"
(68 mm)
3.8"
(95 mm)
0.2” x 0.15”
slot (2x)
* Terminal block may extend up to 1/8” over the height dimensions shown.
APPLICATION/WIRING DIAGRAMS
Start/Stop Monitoring of Fan /Pump Motors
CONTROL
CONTACTOR
1.1" *
(27 mm)
CONTROLLER
DO (Relay
Coil)
DI (Status)
POWER
2.8”
(70 mm)
Ø 0.3”
(8 mm)
3.0”
(76 mm)
2.5”
(64 mm)
1.4”*
(36 mm)
Relay Controlled Directly by Status Contacts
Relay Coil
Power Source
RELAY LOAD
Fan or Pump
Motor
ORDERING INFORMATION
MODEL AMPERAGE
RANGE
H739 1 - 135A
H749 1 - 135A 1A or less SPDT 24VAC/DC Solid-core
H939 2.5 - 135A 2.5A or less SPST, N.O. 24VAC/DC Split-core
H949 2.5 - 135A 2.5A or less SPDT 24VAC/DC Split- core
H959 2.5 - 135A 2.5A or less SPST, N.O. 12VDC nom. Split-core
ACCESSORIES
DIN Rail Clip Set (AH01)
DIN Rail (AV01) and DIN Stop Clip (AV02)
HQ0 001761.C 01131
STATUS OUTPUT
(max.)
N.O. 0.2A@120VAC/DC
MIN. TRIP
POINT
1A or less SPST, N.O. 24VAC/DC Solid-core
AH01
RELAY
TYPE
RELAY
COIL
AV01
HOUSING STAT US
RELAY
LED
POWER LED
n n n
n n n
n n n
n n n
n n n
AV02
current monitoring
UL