Veris Industries H735 SERIES, HX38 SERIES, HX48 SERIES, HX58 SERIES Data Sheet

E150462

Minimize Installed Cost

Current Monitoring | Current Switches with Relay: Adjustable Trip Point

H735, HX38,HX48,
HX58 SERIES

Status and Control in One Package

TM

H938

H738

Maximize Reliability

The Hawkeye Relay Combination Series is 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 current switch and relay operate independently
of one another. These devices allow start/stop control and status
monitoring with one device instead of two.

Combined relay
& status

Combines command relay and fan/
pump status sensor in a single,
easy-to-install unit

Fan & pump
status

Detect belt loss and motor
failure…ideal for fan and pump
status

Polarity
insensitive

Polarity insensitive status
outputs…fast and easy installation

APPLICATIONS

• Starting/stopping and
monitoring positive status of
motors

DETECTS BELT LOSS/COUPLING SHEAR!

DETECTS BELT LOSS/COUPLING SHEAR!

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

Two outputs

H748 and H948 feature a SPDT
command relay…control two
outputs with a single relay

Added flexibility

Bracket on H938, H948, and H958
can be installed in three different
configurations

Easy setup

Relay and status LEDs

• Detecting belt loss and
coupling shear

Fan/pump
On

Electrical
Failure

SPECIFICATIONS

Sensor Power Induced from monitored conductor

Insulation Class 600 Vac RMS

Frequency Range 50/60 Hz

Temperature Range -15 to 60 °C (5 to 140 °F)

Humidity Range 10 to 90% RH non-condensing

Hysteresis 10% Typical

Terminal Block Wire Size 24 to 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)

WARRANTY

Limited Warranty 5 years

AGENCY APPROVALS

Agency Approvals

Note: Do not use the LED status indicators as evidence of applied voltage.

TM

UL 508 open device listing, CAT III, Pollution
Degree 2, basic insulation

RELAY CONTACT RATINGS

H735 (SPST, N.O.)

Resistive 5 A @ 250 Vac, 30 Vdc

Inductive 3 A @ 250 Vac, 30 Vdc

Hx38, Hx58 (SPDT N.O.)

Resistive 10 A @ 250 Vac, 30 Vdc

Inductive 5 A @ 250 Vac, 30 Vdc

Hx48 (SPDT)

Resistive 8 A @ 250 Vac, 30 Vdc

Inductive 3.5 A @ 250 Vac, 30 Vdc

TYPICAL COIL PERFORMANCE

Voltage AC DC

24V 10 mA 10 mA

12V (Hx58) 20 mA

Pull-in Voltage

Hx3x 20.1 Vdc

Hx48 20.1 Vdc

Hx58 8.4 Vdc

Drop-out Voltage

Hx3x 5.2 Vdc

Hx48 5.2 Vdc

Hx58 3.0 Vdc

HQ0001760.F 0117

Current Monitoring | H735, Hx38, Hx48, Hx58 SeriesCurrent Monitoring | Current Switches with Relay: Adjustable Trip Point

H735/738/748/758

Dimensional Drawing

Removable/Adjustable Mounting Bracket

0.9"

 0.7"

(19 mm)

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.
** Slide switch may extend up to 1/4” over the height dimensions shown.

(23 mm)

3.0" **

(75 mm)

1.1" *

(27 mm)

H938/948/958

Dimensional Drawing

Removable Mounting Bracket

Bracket can
be mounted
on three sides
for added
installation
flexibility.

3.1”**

(79 mm)

1.1”

(26 mm)

0.8”

(21 mm)

1.0”

(25 mm)

START/STOP MONITORING
OF FAN /PUMP MOTORS

Wiring Diagram

CONTROLLER

Digital Input
(Status)

Digital Output
(Relay Coil)

CONTACTOR

CONTROL

POWER

RELAY CONTROLLED DIRECTLY
BY STATUS CONTACTS

Wiring Diagram

Fan or Pump

Motor

Relay Coil
Power Source

Self-gripping Iris

2.8”

(70 mm)

Ø 0.3”

(8 mm)

2.5”

(64 mm)

3.0”

(76 mm)

* Terminal block may extend up to 1/8” over the height dimensions shown.
** Slide switch may extend up to 1/4” over the height dimensions shown.

1.4”*

(36 mm)

RELAY LOAD

ORDERING INFORMATION

MODEL

H735 1 to 135 A 0.1 A @ 30 Vac/dc 1 A or less SPST, N.O. 24 Vac/dc Solid-core • • •

H738 1 to 135 A

H748 1 to 135 A 1 A or less SPDT 24 Vac/dc Solid-core • • •

H758 1 to 135 A 1 A or less SPS T, N.O. 12 Vdc nom. Solid-core

H938 2.5 to 135 A 2.5 A or less SPST, N. O. 24 Vac/dc Split-core

H948 2.5 to 135 A 2.5 A or less SPDT 24 Vac/dc Split-core • • •

H958 2.5 to 135 A 2.5 A or less SPST, N.O. 12 Vdc nom. Split-core • • •

AMPE RAGE

RANGE

STAT US

OUTPUT (MAX.)

1.0 A @ 30 Vac/dc

MIN. TRIP

POINT

1 A or less SPST, N.O. 24 Vac/dc Solid-core • • •

RE LAY

COIL

VO LTAGE

HOUSING

STAT US

LED

• • •

• • •

RE LAY

POWER LED

UL

HQ0001760.F 0117

TM