Overview
The Grayhill 70S2-04-B-12-N is a solid state relay from the 70S2 series, engineered for reliable medium-power load switching in industrial control applications. Control voltage ranges from 3-30VDC with operating voltage from 24VAC to 140VAC and a coil current of 12A. The design incorporates a triac output for AC loads and optical isolation protects the control from transients.
Key Features
- Excellent thermal performance designed for medium-power loads with compact size ideal for space-limited designs
- Single-pole single-throw (SPST-NO) contact configuration
- Zero crossing detection for efficient AC switching
- Optical isolation protects control circuits from transients
- Screw terminal connections for secure wiring
Technical Specifications
The following table details the electrical and physical specifications for the Grayhill 70S2-04-B-12-N:
Typical Applications
The 70S2-04-B-12-N is suited for industrial control environments requiring solid state switching without moving contacts. Typical uses include:
- AC motor control and lighting load switching
- Industrial automation and machinery control circuits
- Process control systems requiring reliable medium-power relaying
- Equipment protection circuits with transient-sensitive electronics
Compatibility & Replacements
Compatible With
- AC load switching applications (24VAC to 140VAC)
- 3-30VDC control circuits and PLC outputs
- Industrial control panels and automation systems
- Temperature range: -40°C to +100°C ambient operation
Replaces / Drop-In Replacement For
The Grayhill 70S2-04-B-12-N is part of the 70S2 series with similar models including the 70S2-04-B-06-N and 70S2-04-B-04-F (lower amperage variants). Verify compatibility with your system integrator before ordering to ensure proper load rating match.
Works With
- Standard AC/DC power supplies delivering 3-30VDC control voltage
- PLC analog or discrete outputs (24VDC, 12VDC logic levels)
- Industrial control relay logic and automation systems
- Panel-mount and screw-terminal wiring configurations
