Overview
The General Electric CR305X300A is an auxiliary contact block engineered for use with CR305 series magnetic starters and contactors. This contact assembly is rated for 120 VAC/30 VDC operation and provides reliable auxiliary signal control for automation and control circuit integration. The CR305X300A is manufactured to OEM specifications and suits industrial motor control applications where auxiliary contacts are required for interlocking, status indication, or logic sequencing.
Key Features
- 1NO Contact Configuration: Single Normally Open contact provides positive signal switching for control logic and interlocking circuits
- NEMA Size 3 & 4 Compatibility: Direct fit for CR305M and CR305N magnetic starters and contactors
- Compact Design: Left/right mounting locations available for flexible installation in control cabinets
- Industrial-Grade Rating: Rated 120 VAC/30 VDC at 0.15 A contact current, suitable for continuous industrial duty
- OEM Quality: Genuine General Electric component with proven reliability in motor control applications
Technical Specifications
- Manufacturer: General Electric
- Part Number: CR305X300A
- Contact Type: Auxiliary Contact Block (1NO)
- Contact Rating: 120 VAC / 30 VDC @ 0.15 A
- Compatible Contactor Series: CR305 (Sizes 3–4)
- Compatible Models: CR305M, CR305N
- Mounting: Left/Right positions available
- Application: Magnetic starter auxiliary control, interlocking, status indication
Typical Applications
The CR305X300A is commonly used in industrial automation and motor control systems where auxiliary contacts are required to:
- Provide status feedback or alarm signals from contactors to control logic
- Implement interlock circuits between multiple motor starters or equipment
- Drive indicator lights, buzzers, or solenoid coils in control circuits
- Support DOL (Direct-On-Line) and reduced-voltage starting schemes
- Enable remote monitoring and sequencing in machinery and process control
Compatibility & Replacements
Compatible With
- GE CR305M magnetic starters (NEMA Size 3–4)
- GE CR305N magnetic contactors (NEMA Size 3–4)
- General Electric DOL (Direct-On-Line) starter systems
- Industrial motor control and automation circuits rated 120 VAC or 30 VDC
Replaces / Drop-In Replacement For
The CR305X300A is a direct auxiliary contact block for the CR305 series. Verify compatibility with your system integrator before ordering alternative or older auxiliary contact blocks, as mounting orientation and electrical characteristics may differ between model generations.
Works With
- GE CR305 series magnetic starters and contactors
- Standard industrial 120 VAC and 30 VDC control circuits
- Motor starter interlocking and logic sequencing systems
- PLC and relay-based automation control logic
