SWAN Electric CJX2 Series AC Contactor & Accessories

• The SWAN Electric CJX2 series AC contactors are engineered for robust and reliable performance in demanding industrial and commercial applications.
• Designed for controlling AC motors, switching power circuits, and managing various electrical loads, these contactors stand out for their durability, compliance with international standards, and versatile mounting options.
• What truly sets the CJX2 series apart is its extensive ecosystem of compatible accessories, including auxiliary contacts, pneumatic timer delays, and thermal overload relays, allowing for highly customized and comprehensive control solutions.
• Whether you're managing simple motor starts or complex automated sequences, the CJX2 series offers a dependable foundation.

Features

• Wide Current Range: Available in ratings from 9A to 95A (AC3 @ 380V), covering a broad spectrum of load requirements.
• High Voltage Capability: Rated Insulation Voltage (Ui) of 660V ensures safe operation in common industrial voltage systems.
• Standard Control Voltage: Primarily utilizes a 415V AC (50/60Hz) coil voltage, common in many industrial control panels (other coil voltages available as spares).
• Reliable Performance: Designed for frequent switching operations and AC motor control.
• IEC 60947 Compliant: Meets international standards for low-voltage switchgear and controlgear (Contactors: IEC 60947-4; Timers: IEC 60947-5-1).
• Flexible Mounting Options: Supports both DIN rail mounting (35mm standard, plus 75mm for larger models) and screw/surface mounting.
• Integrated Auxiliary Contacts: Includes built-in auxiliary contacts (typically 1NO for 9A-32A models, 1NO + 1NC for 40A-95A models).
• Expandable Control Logic: Easily add more contacts with F4 top-mount or F8 side-mount auxiliary contact blocks.
• Timed Operations: Incorporate CODT series front-mount pneumatic on-delay timers for precise timing functions (0.1s to 180s).
• Comprehensive Motor Protection: Combine with LR2 series thermal overload relays for reliable protection against motor overloads.
• Durable Construction: Components like spare coils feature flame-retardant housing and copper for longevity.

Benefits

• Versatility & Scalability: One core contactor series combined with a wide array of accessories simplifies selection and allows for tailored solutions covering diverse motor sizes and control complexities.
• Durability & Safety: High insulation voltage, compliance with IEC standards, and the option for thermal overload protection ensure longevity and safe operation in industrial environments.
• System Compatibility: Standard 415V AC coil simplifies integration into existing or new control systems; various spare coil voltages enhance flexibility.
• Assured Quality & Reliability: Adherence to recognized international benchmarks guarantees performance and dependability.
• Installation Flexibility: Choice of DIN rail or screw mounting accommodates different panel layouts and installation preferences.
• Enhanced Control & Automation: Built-in and add-on auxiliary contacts, along with pneumatic timers, enable complex control logic, interlocking, status indication, and automated sequences without needing separate complex devices.
• Complete Motor Protection: When paired with LR2 thermal overload relays, the CJX2 contactor forms a complete motor starter, safeguarding motors against damaging overloads and extending their operational life.

In-Depth Technical Specifications

A. SWAN CJX2 AC Contactor General Specifications:

B. SWAN CJX2 AC Contactor Model-Specific Data:

Note : The power ratings (kW) listed are ranges provided in the datasheet, likely corresponding to different standard motor voltages (e.g., 230V, 400V, 500V, 690V). Consult specific motor requirements for exact application matching.

C. Compatible SWAN Accessories for CJX2 Series:

Top Mount Auxiliary Contacts (CO-AUX-F4 Series):

• Purpose: Expand the number of auxiliary contacts. Uses sliding friction contact for reliable connection.
• Compatibility: Mounts on top of CJX2 contactors.
• Models:
  • CO-AUX-F4-11: 1 Normally Open (NO) + 1 Normally Closed (NC)
  • CO-AUX-F4-22: 2 NO + 2 NC
  • CO-AUX-F4-13: 1 NO + 3 NC
• Rated Insulation Voltage (Ui): 660V
• Conventional Thermal Current (Ith): 10A
• Minimum Load: 6V x 10mA

Side Mount Auxiliary Contact (CO-AUX-F8 Series):

• Purpose: Provides additional auxiliary contacts when top mounting is not feasible or more contacts are needed.
• Compatibility: Mounts on the side of CJX2 contactors.
• Model:
  • CO-AUX-F8-11: 1 NO + 1 NC

Pneumatic Timer Delays (CODT-CO-DEL Series):

• Purpose: Adds on-delay timing functionality to the contactor.
• Compatibility: Front mounts on CJX2 contactors.
• Type: Pneumatic, On-Delay
• Contact Composition: 1 NO + 1 NC
• Standard: IEC 60947-5-1
• Rated Insulation Voltage (Ui): 660V
• Conventional Thermal Current (Ith): 10A
• Models:
  • CODT-CO-DEL-30S: Time Delay Range 0.1 to 30 seconds
  • CODT-CO-DEL-180S: Time Delay Range 10 to 180 seconds

Thermal Overload Relays (LR2 Series):

• Purpose: Protects motors from overload conditions. Features temperature compensation.
• Compatibility: Directly plugs into CJX2 series contactors.
• Contacts: 1 N/O + 1 N/C auxiliary contacts
• Rated Insulation Voltage (Main Circuit): 660V
• Rated Insulation Voltage (Auxiliary Circuit): 500V
• Frequency: 50/60Hz
• Available Models & Current Ranges (selected):
  • LR2-25 (LR2-D13 base): Adjustable current ranges from 0.10A up to 25A (e.g., 0.10-0.16A, 17.0-25.0A)
  • LR2-36 (LR2-D23 base): Adjustable current ranges from 23A up to 36A (e.g., 23.0-32.0A, 28.0-36.0A)
  • LR2-93 (LR2-D33 base): Adjustable current ranges from 23A up to 93A (e.g., 23.0-32.0A, 80.0-93.0A)
  (Consult specific LR2 model datasheet for precise current setting ranges)

Spare Coils (COC-D/F Series):

• Purpose: Replacement coils for CJX2 contactors.
• Material: Flame retardant housing / Copper
• Frequency: 50/60Hz
• Voltage Options for CJX2: Standard options include 110V, 230V, 400V AC. (A wider range including AC12V, AC24V, AC36V, AC48V, AC127V, AC415V is available under the general COC-D/F series for various contactor frames).

Ideal Use

• Controlling Three-Phase AC Motors (e.g., fans, pumps, conveyors, compressors).
• Switching Resistive Loads (e.g., heaters, lighting banks).
• Industrial Automation and Control Panels.
• HVAC Equipment Control Circuits.
• Building Management Systems.
• General Purpose Load Switching.
• Applications requiring timed start/stop or sequential operations (using CODT timers).
• Motor starting applications demanding robust overload protection (using LR2 relays).

Tips

• Voltage Check: Always verify your control circuit voltage matches the contactor's coil voltage (typically 415V AC for CJX2, or the voltage of the specific spare coil used) before installation.
• Current Sizing: Select the contactor based on the motor's Full Load Current (FLC) and the appropriate utilization category (e.g., AC3 for squirrel cage motor starting). Ensure the selected Ith rating is also suitable.
• Auxiliary Needs: Confirm if the standard built-in auxiliary contacts (1NO or 1NO+1NC depending on CJX2 model) meet your control logic requirements. Add F4 (top) or F8 (side) auxiliary contact blocks for additional signaling or interlocking.
• Mounting & Space: Ensure sufficient space for the chosen mounting method (DIN rail or screw) and any attached accessories like timers or side-mount auxiliaries. Check rail compatibility (35mm or 75mm).
• Overload Protection: For motor applications, always pair the CJX2 contactor with a correctly sized LR2 series thermal overload relay for optimal motor protection against sustained overcurrents.
• Time Delay Implementation: Utilize CODT series pneumatic timers for applications requiring on-delay functions. Ensure the time range (0.1-30s or 10-180s) suits the application.
• Wiring Best Practices: Use appropriate wire gauges for the load current and ensure secure terminal connections by observing correct tightening torques (refer to general electrical standards if not specified by the manufacturer).
• Accessory Compatibility: While designed for the CJX2 series, always double-check that the specific accessory model (e.g., F4-xx, CODT-xxS, LR2-xx) is appropriate for the chosen CJX2 contactor size and application requirements.