Overview
The Allen-Bradley 700-HRM12TA17 on-delay timing relay is a general-purpose tube base dial timing relay engineered for precise timing control in industrial automation systems. This catalog item from Rockwell Automation is a tube base dial timing relay that provides single-function, dual timed-contact operation suitable for machinery sequencing, process delays, and equipment protection circuits.
Key Features
- On-delay timing function with timing range from 0.05 s to 300 hours
- Double pole double throw (DPDT) contact configuration with two timed contacts
- Coil voltage rating of 100–240V AC 50/60 Hz / 100–125V DC
- 8-pin plug-in base for panel mounting
- 5 A contact rating at 250V AC resistive load
- Compact dimensions: 48 mm × 48 mm × 81.5 mm
- Electrical life minimum 100,000 operations at 5 A, 250V AC resistive load
Technical Specifications
The 700-HRM12TA17 delivers robust performance for control applications requiring precise delay timing. Power consumption is 2.1 VA at 240V AC, making it energy-efficient for continuous operation. Dielectric strength is rated at 2000V AC between poles for 1 minute, ensuring isolation integrity. Operating temperature range is –10°C to +55°C; storage temperature –25°C to +65°C.
Typical Applications
- Machinery startup and shutdown sequencing
- Process delay control in conveyors and pumps
- Motor protection and soft-start circuits
- Equipment cooling and warm-up cycles
- Alarm and notification delays in industrial systems
- HVAC and climate control automation
Compatibility & Replacements
Compatible With
- Allen-Bradley 700 Series control systems and switchgear
- Industrial automation platforms using 8-pin octal socket bases
- Rockwell Automation control solutions
- Standard 24V–240V AC/DC industrial control circuits
Replaces / Drop-In Replacement For
- Previous 700-HRM12TA17 units (Series B or earlier)
- Similar Rockwell Automation on-delay relays in the 700-HR family
Works With
- Rockwell Automation ControlLogix and CompactLogix PLCs
- Allen-Bradley industrial control panels and enclosures
- Standard 8-pin octal relay sockets (catalog nos. 700-HN100, 700-HN125, 700-HN108)
- Hardwired control circuits using AC/DC power supplies
