Overview
The ATC 319E-030-F-1-C is a compact, economical solid-state time delay relay (TDR) designed for precision timing and control in industrial automation systems. Manufactured by Automatic Timing & Controls (ATC), this octal plug-in relay maintains excellent repeat accuracy across wide voltage and temperature variations, even after extended periods of inactivity. With five dial-selected adjustable ranges, the 319E-030-F-1-C accommodates flexible on-delay timing requirements from 0.02 seconds to 30 minutes in industrial control, sequencing, and automation applications.
Key Features
- Solid-state TDR with octal plug-in base for standard socket mounting
- Five dial-selected adjustable ranges (0.3 sec, 1 sec, 10 sec, 10 min, 100 min)
- Adjustable timing: 0.02 seconds to 30 minutes in any selected range
- High repeat accuracy unaffected by reset time variations (≥0.1 sec between cycles)
- LED cycle-progress indicator (ON during timing, OFF at end of cycle)
- Second LED status indicator for output relay (5-range option)
- AC/DC operation: 24–240 VAC, 24 VDC input voltage
- Economical design suitable for retrofit and new installations
Technical Specifications
| Part Number | 319E-030-F-1-C |
| Manufacturer | ATC (Automatic Timing & Controls) |
| Product Type | Solid-State On-Delay Time Delay Relay (TDR) |
| Base Type | Octal Plug-In |
| Input Voltage (AC) | 24–240 VAC |
| Input Voltage (DC) | 24 VDC |
| Timing Function | On-Delay (Repeat Cycle) |
| Adjustable Ranges | 5 dial-selected ranges (0.3 sec to 100 min) |
| Overall Timing Range | 0.02 seconds to 30 minutes |
| Minimum Cycle Time | ≥0.1 second between cycles |
| Output Relay | 2 Changeover (DPDT) |
| Indicator Lights | LED cycle progress & relay status (5-range) |
| Series | ATC 319E Series |
| Replaces | ATC 319D016Q1C |
Typical Applications
- Automation Sequencing — Delay relay activation in multi-stage control sequences
- Motor Start Circuits — Soft-start delay and anti-surge timing
- Conveyor & Process Control — Timing for material handling and process transitions
- Valve & Solenoid Actuation — Precise on-delay control for pneumatic and hydraulic systems
- Safety Interlocks — Delay verification before permitting machine restart
- Industrial Lighting & HVAC — Delay timers for load sequencing and warm-up cycles
- PLC Peripheral Modules — Standalone timing complement to programmable controllers
Compatibility & Replacements
Compatible With
- Standard 8-pin octal relay sockets and bases
- Industrial control panels and switchboards with octal socket provisions
- Standalone control circuits and legacy automation systems
- AC/DC control power supplies (24–240 VAC, 24 VDC)
- General-purpose industrial automation and sequencing applications
Replaces / Drop-In Replacement For
- ATC 319D016Q1C (legacy TDR model)
- Verify compatibility with your system integrator or facility engineering before ordering for critical applications.
Works With
- Standalone relay logic and hardwired control circuits
- PLC auxiliary timing and sequencing circuits
- HVAC, pneumatic, and hydraulic control systems
- General-purpose industrial automation platforms (no special software required)
- Standard 24–240 VAC and 24 VDC industrial power systems



