Veris VS861 Datasheet

VS861 SERIES

Solid State Relays

Higher Reliability Than

VERIS INDUSTRIES

Electromagnetic Relays

DESCRIPTION

The new DIN-Mountable VS861 Series Solid State Relay with an internal heat
sink is the rst complete solid state relay with no moving parts available in a
modular package.

A SSR (solid state relay) can perform many of the same tasks as an EMR
(electromechanical relay). The SSR diers in that it contains no moving mechanical
parts. It is essentially an electronic device that relies on the electrical, magnetic, and
optical properties of semiconductors and electrical components to achieve its
isolation and relay switching function.

APPLICATIONS

● Lighting

● Trac control

● Instrumentation systems and alarm systems

● Industrial automation

RELAYS

VS861210DC

FEATURES

● No moving parts to wear or fail

● No contact bounce or arcing contacts

● Reduced EMI

● Longer life than electromechanical relays

● Superior performance where fast response time or high frequency of on/o

cycling are required

SPECIFICATIONS

Output Characteristics:

Switching Voltage VS861210DC(AC) & VS861208DC(AC): 24...280VAC , VS861208DD: 3...150VDC
Maximum Zero Turn-on Voltage (Vpk) VS861210DC(AC) & VS861208DC(AC): 35μS
Maximum Rate of Rise o State Voltage (dv/dt) VS861210DC(AC): 500μS, VS861208DC: 475μS, VS861208AC: 350μS
Incandescent Lamp Ampere Rating (RMS) VS861210DC(AC): 8A, VS861208DC(AC): 5A
Motor Load Rating (RMS) VS861210DC(AC): 4.5A, VS861208DC(AC): 3A
Min. Load Cur rent to Maintain On VS861210DC(AC): 50mA, VS861208DC(AC): 150mA, VS861208DD: 20mA
Non-Repetitive Surge Current (1 cycle) VS861210DC(AC): 500A , VS861208DC(AC): 200A, VS861208DD: 35A
Max. RMS Overload Current (1 sec.) VS861210DC(AC) & VS861208DC: 24A, VS861208(DD): 17A
Max. O State Leakage Current (RMS) 10mA
Typical On State Voltage Drop (RMS) 1.25VAC
Max. On State Voltage Drop (RMS) VS861210DC(AC) & VS861208DC(AC): 1.6VAC, VS861208DD: 1.6VDC

Input Characteristics:

Must Release Voltage VS861210DC, VS861208DC, & VS861208DD: 1VDC, VS861210AC & VS861208AC: 10VAC
SP (Nominal) Input Impedance VS861210DC, VS861208DC, & VS861208DD: Current Regulator; VS861210AC & VS861208AC: 16...25k Ω
Typical Input Current @ 5VDC or 240VAC VS861210DC: 16mA, VS861210AC, VS861208DC(AC), & VS861208DD: 12mA
Reverse Polarity Protection VS861210DC, VS861208DC, & VS861208DD: Yes

Other Characteristics:

Operating Time (Response Time) VS861210DC & VS861208DC: 8.3msec; VS861210AC & VS861208AC: 40msec; VS861208DD: 5msec
Release Time VS861210DC & VS861208DC: 8.3msec; VS861210AC & VS861208AC: 80msec; VS861208DD: 5msec
Rated Insulation Voltage/Dielectric Strength 2500VAC
Operating Temperature Range -30° to +80°C (-22° to 176°F)
Thermal Resistance (Junction to Case) VS861210DC(AC): 0.66°C/W, VS861208DC(AC): 2.0°C/W, VS861208DD: 0.5°C/W
Integral He at Sink 4.0°C/W

Year

5

Warranty

800.354.8556

+1 503.598.4564

www.veris.com

HQ0001855.B 01131

800.354.8556

0

RoHS

Compliant

+1 503.598.4564

www.veris.com

APPLICATION/WIRING EXAMPLE

CONTROLLER

+

–

–

INPUT OUTPUT

SSR

+

LOAD

AC INPUT

AMPERAGE DERATING FOR TEMPERATURE

8 AMP STYLE

9

8

7

6

5

4

3

Load Current (Am ps RMS)

2

1.5*
1

0

0 20 40 60 80 100

*Cut off current

25˚

85˚

Max. Am bient Te m p (°C)

DIMENSIONAL DRAWING

Ø .19”

(5 mm)

4.2”

(107mm)

(18mm)

12

10

8

6

4

Load Current (Am ps RMS)

2

1.8*

0

0 20 40 60 80 10

*Cut off current

3.5”

(90mm)

0.7”

10 AMP STYLE

25˚

Max. Am bient Te m p (°C)

2.6” MAX
(65mm)

80˚

1.4”

(36mm)

LOAD CONSIDERATIONS

The primary concern when using SSRs is improper heat
sinking. The type of load current should be evaluated when
considering an SSR as a switching option. SSRs alone are
not compatible with high inrush currents, but cautionary
measures can be taken in high inrush applications to
increase the SSR’s versatility.

LOAD TYPE CAUTIONARY ACTION

All load types Verif y that the inrush curr ent does not exceed the surge speci cations of the SSR.

Steady-state
resistance

DC (inductive) Place a diode across the load to absorb surges during turno.

Incandescent
lamp

Follow standard thermal considerations.

Use a zero voltage turn-on characteristic.

Capacitive Verify that the rate of current rise capabilities are not exceeded. Zero voltage turn-on is an

eective method for limiting this rate.

Motors and
Solenoids

Use a current shunt and oscilloscope to examine the duration of the inrush current. Verify
that back EMF does not create an overvoltage situation during turn-o.

Transformers Use a zero cross turn-on device; verify that the half cycle surge capability is not exceeded.

Rule of thumb: select an SSR with a half cycle current surge rating greater than the
maximum applied line voltage divided by the transformer primary resistance.

ORDERING INFORMATION

MODEL RELAY AMPERAGE

RAT ING

VS861210 DC

VS861210A C 10A 90-280VAC, 80-140VDC SCR 24-2 80VAC Zero Cross

VS8 61208 DC 8A 3-32VD C Tria c 24-2 80VAC Zero Cross

VS8 61208 AC 8A 90-280VAC, 80-140VDC Tri ac 24 -280VA C Zero Cross

VS8 61208 DD 8A 3.5 -32VDC MOSFET 3-15 0VD C DC Switching

SP ST, N. O.

10A 3-32VD C SCR 24-2 80VAC Zero Cross

INPUT VOLTAGE SWITCHING

DEVICE

SWITCHING
VOLTAGE

SWITCHING
TYPE

RELAYS

UL CE

n n

n n

n n

n n

n n

HQ0001855.B 01131