Overview
The Allen-Bradley 595-AA is a 2-pole, 2NO (normally open) auxiliary contact block engineered for industrial motor control and contactor applications. Rated for 600VAC at 10A, this contact block mounts directly to Bulletin 509 contactors and starters, expanding signaling and control capabilities in motor control circuits. Its proven design provides dependable performance in demanding industrial environments.
Key Features
- Two normally open (2NO) contacts for reliable control circuit signaling
- Compatible with Bulletin 509 contactors, NEMA sizes 0–5
- Screw terminal construction for secure, corrosion-resistant connections
- UL, CUL, CE, and KC certified for safety compliance
- Modular base-mount design for easy assembly and installation
Technical Specifications
Voltage Rating: 600VAC
Current Rating: 10A
Contact Configuration: 2NO (2 normally open)
Poles: 2
Mounting Type: Base mount
Terminal Type: Screw
NEMA Sizes: 0–5
Certifications: UL, CUL, CE, KC
Series: Bulletin 509
Country of Origin: USA
Typical Applications
- Motor starter status indication and feedback signaling
- Control circuit interlocking and logic operations
- Equipment run/stop command chains
- Auxiliary signaling in industrial automation panels
- Load distribution and circuit protection monitoring
Compatibility & Replacements
Compatible With
- Allen-Bradley Bulletin 509 motor starters and contactors
- NEMA size 0–5 industrial contactor frames
- Auxiliary contact mounting bases for 509-series equipment
Replaces / Drop-In Replacement For
- Original equipment manufacturer (OEM) 595-AA units across all series revisions (Series A through Series C)
- Direct replacement for legacy Bulletin 509 control systems requiring 2NO auxiliary signaling
Works With
- Bulletin 509 contactor platforms (all voltage classes)
- Industrial control circuits using auxiliary contact logic
- Standard screw-terminal wiring infrastructure
