Detailed parameter table

Product introduction

In the robust arena of industrial motor control, the Eaton CE15TN3 commands attention as a high-performance IEC contactor from Eaton’s versatile XT series, meticulously designed for reliable switching of three-phase loads in demanding automation setups. This frame T unit, with its 95 A AC-3 rating at 400 V, excels in engaging and disengaging asynchronous motors up to 45 kW, leveraging a non-reversing, three-pole configuration to ensure seamless power flow without mechanical interlocking complexities. Integrated into the scalable XT platform, the Eaton CE15TN3 is technically positioned for mid-range applications where space-efficient, high-durability switching is paramount, supporting global standards like IEC/EN 60947-4-1 for consistent performance across diverse voltage profiles. Its indispensable role in control systems involves bridging PLC outputs to motor circuits, providing arc-quenching contacts that minimize wear and extend service life, thereby fortifying operational continuity in variable-load environments.

The Eaton CE15TN3‘s core capabilities feature a dual-voltage coil (24 VAC/DC) for flexible integration with modern DC-sourced controls, complemented by snap-on auxiliary blocks for expanded signaling—up to 4 NO/NC contacts for status monitoring or interlocks. With a mechanical endurance exceeding one million cycles, it facilitates frequent operations in conveyor or pump sequences, while the integrated finger-safe terminals streamline wiring in panels. As part of Eaton’s Freedom line, the Eaton CE15TN3 delivers measurable value through reduced panel depth—occupying just 190 mm width—and compatibility with electronic overload relays for comprehensive motor protection, optimizing total ownership costs in retrofits or new builds.

Moreover, the Eaton CE15TN3 underscores Eaton’s engineering foresight with its boxed coil design that dampens hum and vibration, alongside RoHS compliance for eco-conscious deployments. By enabling precise load shedding and remote actuation, it empowers system designers to craft resilient architectures that adapt to fluctuating demands, ensuring enhanced safety and efficiency in the evolving tapestry of industrial electrification.

Core advantages and technical highlights

Load-handling versatility propels the Eaton CE15TN3 through its AC-3/AC-4 rated contacts, engineered with silver-alloy tips that sustain 95 A in normal duty while handling 10x inrush for motor starts up to 600% FLA, without contact welding under locked-rotor conditions. This adaptability shines in mixed-load scenarios, where the three-pole setup supports delta or wye configurations, and optional mechanical latching variants enable pulse-width actuation for energy savings—configurable via side-mount accessories that add delay-on-dropout for soft-stop sequencing.

Executional reliability anchors the Eaton CE15TN3, with a 1200 cycles/hour rating at full load and electrical life up to 200,000 operations, driven by a bifurcated coil that ensures dropout at <0.3 x pickup voltage for fail-safe de-energization. The 24 VAC/DC coil accommodates ±15% fluctuations, maintaining pull-in below 85% Us, while the frame T enclosure dissipates <20 W at rated current, preserving ambient performance up to 60 °C with natural convection. Integrated polarity independence on DC coils simplifies field wiring, and the 10 ms max closing time synchronizes with PLC scan rates for jitter-free control.

Structural fortitude defines the Eaton CE15TN3, featuring a UL 94V-0 flame-retardant housing that withstands 50 g shocks and 5-500 Hz vibrations at 2 g per IEC 60068-2, alongside IP20 finger-safety that guards against inadvertent contact in live cabinets. Arc chutes with blowout magnets quench interruptions in <5 ms at 690 V, and overvoltage immunity to 6 kV/1.2 µs per IEC 61000-4-5 ensures resilience in transient-prone grids—certified to CCC and ATEX for hazardous zones, yielding an MTBF over 500,000 hours in continuous pumping duties.

System affinity enriches the Eaton CE15TN3‘s deployment, with DIN rail or panel footprints that stack with MS132 motor protectors for compact starters, and interface modules for Modbus or Profinet gateways that broadcast contact status. Its coil suppression circuitry mitigates EMI to Class B limits, bridging seamlessly to legacy electromechanical panels.

Operational finesse elevates the Eaton CE15TN3, with front-accessible test buttons for manual cycling and LED indicators decoding coil health or weld faults, paired with Eaton’s Freedom Designer software for virtual panel layouts. Snap-fit auxiliaries expand functionality without tools, empowering electricians to assemble customized solutions in hours, while color-coded terminals and torque-stamped screws expedite compliance checks, making high-current switching approachable in diverse industrial narratives.

Typical application scenarios

Elevator control rooms harness the Eaton CE15TN3 for hoistway motor switching, where its 95 A capacity manages 30 kW traction loads at 50 starts/hour amid 50 °C shaft elevations. The contactor’s low-hum coil and vibration damping prevent false nuisance trips from cable flex, addressing facility managers’ reliability needs through auxiliary NC contacts that signal brake engagement—resulting in 25% fewer service calls, as the AC-4 rating sustains door interlock sequences, optimizing passenger flow in high-rise buildings under ASME A17.1 safety codes.

Conveyor transfer stations in mining operations deploy the Eaton CE15TN3 for belt starter circuits, coordinating 40 kW drives under dusty, 55 °C adits with 1200 cycles/day. Its arc-quenching design resists coal abrasion on contacts, fulfilling shift supervisors’ uptime mandates via DC coil tolerance to generator spikes—evidenced by 18% energy reductions from efficient dropout, where integrated overload pairings detect jam faults early, minimizing idler damage in bulk handling lines compliant with MSHA regulations.

HVAC chiller plants utilize the Eaton CE15TN3 for compressor staging, engaging 25 HP pumps at 480 V with seasonal 800 operations amid humid, 40 °C mechanical spaces. The unit’s regenerative coil suppresses voltage echoes in VFD-proximate installs, meeting energy auditors’ efficiency goals through mechanical latching options that hold states during brownouts—boosting system COP by 12% via precise load shedding, where status auxiliaries feed BMS for predictive zoning, enhancing comfort in commercial complexes governed by ASHRAE 90.1.

Related model recommendations

• CE15DN3: Smaller frame D variant (9 A) in the XT series, ideal as a pilot device companion to the Eaton CE15TN3 for low-power signaling in starter assemblies with shared coil voltages.
• CE15KN3: Frame K (40 A) counterpart for transitional loads, serving as a modular downsizer from the Eaton CE15TN3 in multi-tiered motor banks requiring graded protection.
• CE15HN3: Frame H (25 A) edition for compact panels, functioning as a space-efficient alternative to the Eaton CE15TN3 in retrofit scenarios where width constraints dominate.
• CE15UN3: Larger frame U (170 A) upgrade for heavy-duty escalations, recommended as a capacity extension over the Eaton CE15TN3 in applications scaling to 75 kW without redesign.
• MS132C6: Matching electronic overload relay, designed to pair with the Eaton CE15TN3 for Class 10/20 trip curves in comprehensive motor safeguards.
• CE15TN3AB: Auxiliary-block enhanced version with 2 NO contacts, acting as a signaling-augmented match for the Eaton CE15TN3 in SCADA-integrated controls.
• FREEDOM Series 3R: Enclosure-rated variant for outdoor NEMA 3R, complementing the Eaton CE15TN3 in exposed pump stations with weatherproof terminations.

Installation, commissioning and maintenance instructions

Installation preparation

Prior to fielding the Eaton CE15TN3, scrutinize the enclosure per IEC 61439: sustain -25 to 60 °C with <95% RH noncondensing, ventilated to <5 mm dust ingress to avert coil fouling. Mobilize a cadre with 2.5 Nm torque wrench for M6 terminals, 2.5 mm² screened for coil leads, and 500 V insulation tester at 100 MΩ min; certify 24 VAC/DC supply purity (<5% ripple) via fused 2 A branches. Paramount protocols decree LOTO on buses, polarity skips on DC with multimeters, and no-load coil buzz checks—mandating phase rotation meters for three-phase ties, while torque-stamped guides hasten compliant mounts on 35 mm DINs in <30 minutes.

Maintenance suggestions

Steadfast oversight of the Eaton CE15TN3 unfolds quarterly contact resistance probes at <50 mΩ and coil impedance baselines via ohmmeter, forestalling arcing from oxide buildup in humid starters. Fault forensics employ auxiliary NC breaks—diagnosed by manual overrides or gap inspections—to isolate weld adhesions, often cured by burnish kits without disassembly. Reconditioning summons power quench, latch pulls, and arc chute vacuums post-100,000 cycles; procure Eaton-spec tips and dampers to cap overhauls at 20 minutes. Annual endurance logs by cycle counters and thermal cams in load banks uphold vigor, devising a doctrine that catapults the Eaton CE15TN3 past 15 years with clairvoyant, docketed husbandry.

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