Allen-Bradley 100-C09E*01 IEC Contactor Relay – Bulletin 100-C

Allen-Bradley 100-C09E*01 — 9A IEC Contactor Relay with 24V DC Coil for Deterministic Motor Switching

The Allen-Bradley 100-C09E*01 is a 9-ampere, three-pole IEC contactor relay from Rockwell Automation’s Bulletin 100-C platform, designed for direct integration into PLC-driven motor control circuits where coil response time, contact reliability, and panel density are primary engineering constraints. The “E” suffix in the catalog string designates a 24V DC coil — a specification that allows direct drive from standard PLC digital output modules without intermediate relay stages, reducing both BOM cost and wiring complexity in control panel design.

Within the Bulletin 100-C family, the 9A frame occupies the entry tier of the IEC AC-3 duty range, covering three-phase induction motors up to approximately 4 kW at 400V AC. This positions the 100-C09E*01 as the standard selection for light-duty motor starters, auxiliary switching circuits, and control relay applications in discrete manufacturing, material handling, and process automation environments. Its dimensional footprint is optimized for high-density DIN rail assemblies, with a 45mm body width that allows tight grouping in compact enclosures.

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Technical Parameters

Hardware Logical Analysis

The 100-C09E*01 employs a double-break contact geometry on each main pole. Each phase conductor passes through two series contact gaps rather than one, which halves the arc energy per gap during interruption. At 9A AC-3 duty, this architecture extends silver-alloy contact life measurably compared to single-break designs at equivalent current ratings. The contact material is a silver-cadmium oxide (AgCdO) or silver-tin oxide (AgSnO₂) alloy — the latter being the RoHS-compliant formulation — selected for its resistance to contact welding under inrush conditions typical of squirrel-cage motor starts.

The 24V DC coil circuit incorporates a transient suppression element (varistor or flyback diode, depending on revision) integrated into the coil housing. This suppresses the inductive kickback voltage spike generated when the PLC output de-energizes the coil, protecting the driving transistor output from exceeding its reverse breakdown voltage. Engineers specifying this contactor for direct PLC output drive should verify the output module’s maximum inductive load rating; the 100-C09E*01’s coil inductance at sealed state is approximately 0.8H, producing a back-EMF spike that the internal suppressor clamps to safe levels within the coil assembly itself.

The magnetic circuit uses a laminated silicon-steel E-I core with a shading ring on the AC face — though the coil itself is DC, the core geometry is shared across the 100-C platform. The DC coil eliminates the characteristic 50/60Hz hum associated with AC-coil contactors, a meaningful advantage in noise-sensitive environments such as laboratory automation or precision machining cells. Coil energization time from 24V DC application to full contact closure is typically 15–25ms, and de-energization (drop-out) time is 10–20ms — both within the deterministic response window required for PLC ladder logic scan-cycle coordination.

EMC performance is governed by the coil suppressor and the contact gap geometry. The double-break contact design reduces the arc duration per switching event, which directly lowers the radiated RF emission during contact opening. For installations in environments with strict EMC requirements (e.g., IEC 61000-4-4 EFT/Burst immunity), the 100-FSC series surge suppressor can be added externally across the coil terminals for additional protection of the driving circuit.

System Integration Benefits

• Direct PLC Output Drive: The 24V DC coil is compatible with standard NPN/PNP transistor outputs on Allen-Bradley MicroLogix, CompactLogix, and ControlLogix platforms, eliminating intermediate relay stages and reducing panel wiring by up to 30% in typical motor starter circuits.
• Modular Auxiliary Contact Expansion: Front-mount (100-FA series) and side-mount (100-SA series) auxiliary contact blocks snap onto the base unit without tools, allowing field reconfiguration of NO/NC contact combinations to match evolving control logic requirements without replacing the contactor body.
• Reversing Contactor Configurations: The 100-MCI mechanical interlock accessory enables two 100-C09E*01 units to be mechanically interlocked for reversing motor starter assemblies, providing a hardware-level safety barrier against simultaneous energization independent of PLC logic.
• Overload Relay Integration: Direct mechanical coupling with Bulletin 193 E3 Plus overload relays (193-EECB series) creates a complete IEC motor starter assembly on a single DIN rail section, with electronic overload protection, phase-loss detection, and DeviceNet/EtherNet/IP diagnostic reporting.
• Deterministic Switching Latency: With coil operate time of 15–25ms and release time of 10–20ms, the 100-C09E*01 operates within a single PLC scan cycle at standard 10ms scan rates, enabling precise sequencing in multi-axis conveyor and indexing applications without timing compensation in ladder logic.
• High-Density Panel Layout: The 45mm body width allows grouping of multiple starters on standard 2-meter DIN rail sections at 50mm pitch, achieving panel densities of up to 40 motor starters per meter of rail — a critical factor in compact machine-mounted enclosures.
• Diagnostic Transparency via Overload Integration: When paired with the 193-EECB overload relay, the assembly provides real-time current monitoring, thermal model state, and fault history accessible via EtherNet/IP, enabling predictive maintenance scheduling without additional current transducers.
• Cross-Platform Compatibility: The IEC 60947-4-1 compliance and standard DIN rail footprint allow the 100-C09E*01 to be integrated into non-Rockwell control architectures — including Siemens S7, Mitsubishi MELSEC, and Omron NJ/NX platforms — wherever a 24V DC coil, 9A IEC contactor is specified, providing procurement flexibility for multi-vendor plant environments.

Quality Assurance & Global Logistics

Every Allen-Bradley 100-C09E*01 unit supplied through siemensplc.com is sourced from verified supply channels with full traceability to Rockwell Automation’s authorized distribution network. Pre-shipment inspection covers label authenticity verification (hologram, date code, catalog string format), housing integrity assessment, coil continuity measurement (nominal DC resistance cross-referenced against published specifications), and contact gap visual inspection. Units exhibiting any deviation from factory specification are quarantined and excluded from shipment.

Packaging follows ESD-safe and moisture-barrier protocols: each unit is individually bagged in anti-static polyethylene, placed in foam-lined cartons, and sealed with tamper-evident tape. For international shipments, cartons are further packed in double-wall corrugated export boxes rated for air freight handling. A 12-month warranty from shipment date covers manufacturing defects under normal operating conditions as defined by IEC 60947-4-1.

Logistics operations are based in Xiamen, China, with direct access to Xiamen Gaoqi International Airport and Xiamen Port, enabling same-day dispatch for in-stock orders placed before 14:00 CST. Standard international transit times: DHL Express 2–4 business days to Europe and North America; FedEx International Priority 3–5 business days to Southeast Asia and the Middle East; EMS/China Post economy option available for cost-sensitive shipments. Full tracking numbers are provided within 24 hours of dispatch. Export documentation including commercial invoice, packing list, and certificate of origin is prepared for all international orders. Certificate of Conformance (CoC) available upon request.

Contact Information

Email: [email protected]
WhatsApp: +86 18359268345
Web: siemensplc.com
Location: Xiamen, China
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