Single/dual channel switch input/digital signal output (safety barrier)

Operating end safety barrier - single/dual channelSwitch input/digital signal output safety barrierZY-DLSR-EX-8

The switch output isolation safety barrier controls the power supply in the safe area through switch control or logic level signal control to drive intrinsic safe low-power equipment in the hazardous area. It is suitable for driving intrinsic safe equipment such as solenoid valves, sound and light alarms, etc.

Explosion proof mark:
［Exia］ⅡC/ⅡB

Number of channels:
Single/Dual Channel

The safe zone allows input signals:
Logic level signal: When the logic level is ≥ 4V, it indicates "on" and supplies power to the on-site equipment.
When the logic level is ≤ 1V, it indicates "off" and stops supplying power to the on-site equipment.
Passive input signal: relay contacts or pure mechanical switches.
Output signal to danger zone:
Maximum output voltage: 26V
Minimum output voltage: 12V
Output current: 35mA (45mA)

Equivalent circuit for hazardous area signal output:

Characteristic diagram of hazardous area signal output

Certification parameters of National Explosion proof Electrical Quality Supervision and Inspection Center (CQST) (between terminals 1 and 2), (between terminals 4 and 5):
Um=250VAC/DC
35mA output: Uo=28.4V， Io=88mA，Po=624mW，
ⅡC： Co=0.055μF，Lo=3.2mH，
ⅡB ： Co=0.44μF，Lo=10.0mH，
ⅡA ： Co=1.45μF，Lo=20.0mH，
45mA output: Uo=28.4V， Io=127mA，Po=902mW，
ⅡB： Co=0.44μF，Lo=6.1mH，
ⅡA： Co=1.45μF，Lo=16.2mH，

ZY-DLSR-EX-8 safety barrier selection method:

ZY-DLSR-EX-8 safety barrier wiring diagram:
Single channel instrument wiring width x height x depth (12.8 x 100 x 115mm)

Dual channel dual output instrument wiring width x height x depth (18 x 100 x 115mm)