DETECTS BELT LOSS/COUPLING SHEAR!

DETECTS BELT LOSS/COUPLING SHEAR!

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.

Calibrated

Trip Point

O

O

Fan/pump

On

Loss of Belt/Coupling Shear

Electrical

Failure

H908

H708

H608

H808

H308

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

If using this switch in an application that includes an electronically commutated motor

(ECM), see Veris Application Note VN61, at www.veris.com.

VFD systems generate fields that can disrupt electrical devices. Ensure that these fields are

minimized and are not affecting the sensor.

SPECIFICATIONS

Sensor Power

Induced from monitored conductor

Insulation Class

600 Vac RMS (UL), 300VAC RMS (CE)

Frequency Range 2

50/60 Hz, On/Off status for Variable Frequency Drive

(VFD) outputs at 12 to 115 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

H308: 22-16 AWG (0.3 to 1.3 mm2)

Others: 24-14 AWG (0.2 to 2.1 mm2)

Terminal Block Torque

H308: 3.5 to 7 in-lbs (0.8 N-m)

Others: 3.5 to 4.4 in-lbs (0.4 to 0.5 N-m)

WARRANTY

Limited Warranty

5 years

AGENCY APPROVALS

Agency Approvals

UL 508 open device listing; CE: EN61010-1, CAT III,

Pollution Degree 2, basic insulation

E150462

APPLICATIONS

• Detecting belt loss, coupling

shear, and mechanical failure

• Verifying lighting circuit

and other electrical service

run times

• Monitoring status of industrial

process equipment

• Monitoring status of critical

motors (compressor, fuel, etc.)

• VFD output on/off status

Hx08 Series and H701 adjustable current switches offer high

performance, with a wide array of amperage range options.

These products can accurately detect belt loss, coupling shear,

or other mechanical failure on unit vents, exhaust fans, recirculation

pumps, and other fixed loads down to as little as 1/5 HP.

Maximize Reliability

Minimize Installed Cost

Retrofit or new

construction

High performance devices in split-

and solid-core housings

Small size

Fits easily inside small enclosures

Adjustable trip

point

Precise current trip point setting

Self-gripping iris

Self-gripping iris on split-core

housings for easy installation

Low setpoint

Minimum trip point as low as

0.5 A (H608)…no need for multiple

wraps of the conductor through

the sensor, even on loads as small

as 1/5 HP

Status LEDs

Status LEDs available for easy

setup and local indication

800.354.8556 | +1 503.598.4564 | sales@veris.com | intl@veris.com | veris.com

HX08 SERIES & H701

Detect Belt Loss, Coupling Shear,

and Mechanical Failure

Current Monitoring | Current Switches: Adjustable Trip Point, Standard Output

HQ0001754.H 0321