NK DS3-SDT-12U – DC Current Sensor, DS3 Series; SPDT Relay (Form C), +12 VAC/DC

NK DS3-SDT-12U – DC Current Sensor, DS3 Series

• DS3 series
• DC current sensor
• Setpoint range = 2-20, 10-50 and 20-100 A, jumper-selectable
• Output type = SPDT Relay (Form C)
• Power supply = +12 VAC/DC

Failure Detection

Current Sensing Switch Applications

Welders and Platers

• Instant indication of equipment status.

Large Drive Motors

• Provides enhanced field loss protection.

Power Supplies

• Signals overcurrent before equipment fails.

Machine Operation

• Instant status of motors, lamps and other loads.

Telecom Sites

• Monitors battery output.

Current Sensing Switch Features

Compact, One-piece Design

• Fits in easily amongst motor starters and power supplies in crowded control panels.

Input Isolation

• Safer than shunt/relay combinations.

Output Installation

• Isolated output greatly simplifies wiring.

Pluggable Terminals

• Speed installation.

Tough

• Designed to handle a wide range of temperatures found in industrial environments.

Adaptive Hysteresis

• Hysteresis is 5% of setpoint, allowing closer control than fixed hysteresis switches.

Built-in Mounting Feet

• Simple, two-screw installation allows for secure mounting.

UL/cUL and CE Approved

• Accepted worldwide.

Current Sensing Switch Connections

Notes:
Pressure plate screw terminals.
12-22 AWG solid or stranded.
Field-adjustable setpoint.

DS3 Series Sample Output/Power Supply

Current Sensing Switch Ordering Information

Sample Model Number: DS3-SDT-24U

DS current sensing switch with SPDT relay contacts and 24 VAC/DC power supply. (DIN rail adapters are included)