Overview
The Allen-Bradley 700-HN121 is a miniature 5-blade relay socket purpose-built for secure mounting and operation of Allen-Bradley 700-HK and 700-HNK 1-pole relays. With a 10-amp continuous rating at 250VAC, the 700-HN121 combines compact size with robust electrical handling, making it a standard choice in industrial control panels, process automation, and switchgear installations.
Key Features
- 5-blade miniature base with forked lug conductor terminals for positive pin engagement
- 10 amp continuous rating at 250VAC ensures reliable operation in demanding applications
- Guarded screw terminals provide touch-safe connections and prevent accidental contact
- Built-in retainer clip secures the relay in place during operation and installation
- DIN rail or panel mount flexibility for flexible cabinet and control box integration
- Multiple industry certifications (UL, CSA, CE, CCC, KC) confirm compliance with safety and performance standards
Technical Specifications
- Socket Type: Miniature 5-blade base
- Current Rating: 10 amps
- Voltage Rating: 250 VAC
- Terminal Style: Guarded screw terminals
- Pin Configuration: 5 pins
- Mounting Options: DIN rail or panel mount
- Retainer: Built-in retainer clip
- Conductor Type: Forked lug
- Dimensions: 15.6 mm W × 54.1 mm D × 88.16 mm H
- Weight: 0.11 lbs (0.08 lbs per socket)
- Certifications: UL, CSA, CE, CCC, KC
- Country of Origin: China
Typical Applications
- Industrial control panels: General-purpose relay switching in PLCs and motor control centers
- Process automation: Relay logic circuits in manufacturing and assembly equipment
- Switchgear and distribution: Auxiliary relay mounting in power distribution cabinets
- Machine tool control: Interlock and safety circuits in CNC and conventional machinery
- HVAC and pump control: Equipment startup sequencing and load switching
Compatibility & Replacements
Compatible With
- Allen-Bradley 700-HK 1-pole relays (primary application)
- Allen-Bradley 700-HNK 1-pole relays
- Allen-Bradley Bulletin 700-SK solid-state relay modules (700-SKI input and 700-SKO output modules via separate socket configuration)
- Standard industrial control panel layouts with DIN rail or bolt-mount provisions
Replaces / Drop-In Replacement For
- Direct replacement for original Allen-Bradley 700-HN121 relay sockets in existing installations
- Serves as replacement for identical 5-blade miniature relay sockets in legacy 700-series relay systems
- Verify compatibility with your system integrator before ordering to confirm relay type and application voltage.
Works With
- Allen-Bradley Logix and CompactLogix PLC systems (via hardwired relay logic)
- Industrial control system wiring (manual relay ladder logic, timing circuits, interlocks)
- Standard electrical cabinet design and installation practices
- DIN rail mounting standards and panel-mount electrical enclosures
















