Overview
The Allen-Bradley 700DC-PK400Z24 is a direct-drive master control DC relay engineered for demanding industrial control applications. This heavy-duty relay features 4 normally open (N.O.) contacts and a 24V DC coil, making it ideal for panel mounting and protective relay schemes in manufacturing, process control, and automation systems.
Key Features
- 4 Normally Open (N.O.) contacts for flexible switching configurations
- 24V DC coil voltage with standard rail-mount enclosure
- 10 Amp AC/DC contact rating with double-break bifurcated contact design
- Rated for up to 600V maximum contact voltage
- NEMA-approved industrial relay for reliable performance in demanding environments
- Field-replaceable standard contact cartridges for easy maintenance
Technical Specifications
- Coil Voltage: 24V DC
- Number of Contacts: 4 Normally Open
- Contact Rating: 10 Amps AC/DC at rated voltage
- Maximum Contact Voltage: 600V
- Contact Design: Double-break bifurcated
- Mounting: Rail Mount (Open Enclosure)
- Series: 700DC Bulletin (Rockwell Automation)
- Switching Capacity (DC): Up to 35A in heavy-duty circuits
- Certification: NEMA Industrial Relay
Typical Applications
- Motor control circuits and protective relay schemes
- Automation equipment sequencing and interlocking
- PLC output stage switching and power distribution
- HVAC system controls and load management
- Emergency stop and alarm control circuits
Compatibility & Replacements
Compatible With
- Allen-Bradley and Rockwell Automation control panels
- Standard NEMA relay mounting racks and DIN rail systems
- Legacy and modern PLC output modules requiring DC switching
- Industrial automation systems using 24V DC control power
Replaces / Drop-In Replacement For
- 700DC-PK400Z24 variants from earlier manufacturing runs
- Related master control relay models in the 700DC-P4xx series
- Other 4-contact 24V DC relays with similar switching ratings (verify pin configuration)
Works With
- Rockwell Automation Studio 5000 and ControlLogix/CompactLogix output modules
- 24V DC control power supplies and battery backup systems
- Standard NEMA enclosures and industrial control panels
- Protective relay and safety circuit applications following IEC/NEMA standards
