ISL: Latching Relay with Intrinsically Safe Outputs
• Two Inputs -
Latching Function
• Compact Design
• Contact or Probe Input
• Built-in De-bounce
Delays
• Output and Input status
LEDs
• Low Voltage Design for
12 or 24VAC/DC
• Din Mounting
• 12 or 24VDC Battery
Back-Up
Operation
Latching Relay
The ISL has two independent outputs to the hazardous area and one (dry contact) relay output with a latching function. The outputs can be switches (float or pressure) or, when used with a conductive liquid, electrodes. Pump Down Operation: When output “B” is completed (contact closed or low resistance), 1 second later LED “B” lights but there is no change in the relay output contacts. and the dry output contact is energized. When output “A” is completed, LED “A” lights and the output relay is energized. When output “A” opens, there is no change in the output contact. When output “B” opens, the output relay is de-energized. Pump Up Operation: Use normally closed input devices and reverse the positions of “A” and “B” outputs.
Specifications
Electrical
Supply Voltage: 12 or 24 AC/DC ±10%
Power: 0.8 watts Inputs: Switch Closure or Probe
Input Sensitivity: 10k - 100k Ω
Pick-up & Drop-out Delays: 1 second
Max. Open Circuit Voltage: 5.9 volts DC
Max. Source Current: 0.1 milliamps
Output Rating @ 25°C:
5 Amps @ 125VAC
5 Amps @ 30VDC or 250VAC
20,000,000 Mechanical Cycles
Physical
Mounting: Din Rail mount
Termination: Touch safe screw terminals, with lift mechanism,
#12 AWG max.
Weight: 10 Oz.
Ambient Temperatures
Operating: 0°C to 55°C
Storage: -40°C to 85°C