Overview
The Allen-Bradley 595-AB is an auxiliary contact block engineered to extend the control circuit capabilities of Bulletin 500-Line contactors and starters. This NEMA-rated accessory provides additional contact points for logic and control functions in motor control centers and industrial automation systems. The 595-AB mounts directly to compatible contactors, eliminating the need for external relays or wiring harnesses.
Key Features
- 1 normally open (NO) and 1 normally closed (NC) contact configuration
- 600V maximum voltage rating for AC and DC control circuits
- 10 Amp contact current rating for reliable signal switching
- Screw-clamp terminals for secure field wiring
- Base-mounted design for quick installation on Bulletin 500 contactors
- Certified to CE, CUL, KC, and UL standards
Technical Specifications
- Contact Configuration: 1 NO, 1 NC
- Voltage Rating: 600V AC/DC
- Current Rating: 10 A
- Terminal Type: Screw Clamp
- Mounting: Base Mount
- Applicable NEMA Sizes: 0, 1, 2, 3, 4, 5
- Certifications: CE, CUL, KC, UL
- Country of Origin: Mexico
- UPC: 781180156427
Typical Applications
The Allen-Bradley 595-AB is ideal for:
- AC motor starters and soft-start systems requiring auxiliary control signals
- Pilot light and indicator lamp control in motor control centers
- Interlock logic circuits preventing simultaneous operation of multiple loads
- Alarm and status monitoring in industrial machinery
- Conveyor and production line automation systems
- HVAC and pump control circuits in commercial buildings
Compatibility & Replacements
Compatible With
- Allen-Bradley Bulletin 500-Line AC and DC contactors
- NEMA sizes 0 through 5 starters and motor control centers
- Allen-Bradley open-frame contactors with auxiliary mounting provisions
- Industrial control systems using pilot-operated circuits
Replaces / Drop-In Replacement For
The 595-AB is the standard auxiliary contact block for Bulletin 500 NEMA 0–5 contactors. Verify your existing contactor model and NEMA size before ordering to ensure compatibility. Other auxiliary contact options in the 595 series include the 595-A (1NO only) and 595-AB (1NO/1NC as listed here).
Works With
- EtherNet/IP-enabled motor control systems
- Allen-Bradley CompactLogix, ControlLogix, and MicroLogix PLCs via hardwired pilot circuits
- Relay logic and ladder logic control schemes
- Safety-rated control circuits (when used with appropriate safety-certified contactors)
- HVAC and industrial automation software packages
