Watlow DA10-24F0-0000 DIN-A-MITE A Series Power-Switching Device Controller

The Watlow DA10-24F0-0000 is a DIN-A-MITE A Series solid-state power controller engineered for single-phase resistive load control. Built on a back-to-back SCR architecture, this device uses zero-cross switching technology to deliver proportional power management via 4-20 mA DC input signals. It mounts directly to DIN rail or standard panels, combining compact footprint with industrial-grade performance for heating applications requiring precise temperature regulation.

– Technical Specifications

• Input Control Signal: 4-20 mA DC proportional
• Output Control: Variable time-base output
• Line/Load Voltage: 120-240 VAC or 100-240 VAC
• Maximum Current: 25 A at 80°F, de-rating to 10 A at 167°F natural convection; 18 A at 50°C with natural convection heat sink
• Maximum I²t (Fusing): 4000 A²sec
• Short Circuit Current Rating (SCCR): 200 kA tested to 480 VAC with required fusing
• Input Current: 25 mA max (AC contactor versions)
• Latching Current: 400 mA max
• Holding Current: 200 mA max
• Power Dissipation: 1.2 W per ampere switched
• Dimensions: 3.7″ L × 1.8″ W × 3.9″ D
• Agency Approvals: UL 508 listed, C-UL, RoHS 2, CE with filter

– Key Features

• Back-to-back SCR design for rugged solid-state switching
• Touch-safe terminals for installer and end-user protection
• Mercury-free, environmentally compliant construction
• Zero-cross switching minimizes EMI and extends heater life
• 200 kA SCCR with proper fusing prevents arc flash and fault damage
• Flexible mounting: DIN rail or panel configuration
• Compact size reduces control panel real estate and installation cost

– Typical Applications

Single-phase resistive heating control in industrial process heating, thermal management systems, and load-switching applications requiring proportional 4-20 mA command interfaces.

– Compatibility & Integration

Accepts standard 4-20 mA proportional control signals. Operates across 100-240 VAC line voltages. Integrates with systems requiring touch-safe terminal interfaces and high short-circuit current ratings.