General Electric 22D136G2A DC Operating Coil Product Specification
22D136G2A is an original factory DC operating coil manufactured by General Electric, specially engineered as a core drive component matching GE IC2800 series heavy-duty industrial contactors including model Y104 and Y1176 contactor frames for industrial motor control center, high-power motor startup and power switching applications. Designed to convert rated DC input power into electromagnetic attraction force to drive contactor’s movable armature for mechanical make-and-break of main power circuits, this coil is widely deployed in petrochemical plants, thermal power stations, metallurgical workshops and large industrial compressor control cabinets for heavy-load AC motor protection and circuit switching control. The component belongs to discontinued legacy GE industrial control product line, with original official production suspended, most available stock comes from new surplus inventory, factory refurbished units and used dismantled spare parts from retired MCC equipment. Every finished original coil passes winding insulation resistance testing, DC energization pull-in test and long-duration thermal aging inspection before factory shipment to guarantee stable electromagnetic performance under fluctuating industrial site power supply and varying ambient working environments.
Description
General Electric 22D136G2A DC Operating Coil Product Specification
1. Product Overview
22D136G2A is an original factory DC operating coil manufactured by General Electric, specially engineered as a core drive component matching GE IC2800 series heavy-duty industrial contactors including model Y104 and Y1176 contactor frames for industrial motor control center, high-power motor startup and power switching applications. Designed to convert rated DC input power into electromagnetic attraction force to drive contactor’s movable armature for mechanical make-and-break of main power circuits, this coil is widely deployed in petrochemical plants, thermal power stations, metallurgical workshops and large industrial compressor control cabinets for heavy-load AC motor protection and circuit switching control. The component belongs to discontinued legacy GE industrial control product line, with original official production suspended, most available stock comes from new surplus inventory, factory refurbished units and used dismantled spare parts from retired MCC equipment. Every finished original coil passes winding insulation resistance testing, DC energization pull-in test and long-duration thermal aging inspection before factory shipment to guarantee stable electromagnetic performance under fluctuating industrial site power supply and varying ambient working environments.
2. Part Number Coding Definition
The prefix code 22D136 represents GE’s dedicated DC coil product platform customized for IC2800 heavy-duty contactor assembly; suffix G2A defines fixed internal winding wire specification, coil bobbin dimension, insulation grade and rated working voltage edition of this specific variant. Other derivative part numbers with different suffix letters carry distinct winding parameters and voltage ratings, which cannot be directly cross-replaced on-site. Improper substitution will result in failed contactor pull-in action, coil overheating burnout or abnormal sticking of contact moving components, triggering unexpected equipment shutdown of driven high-power motors.
3. Core Product Functional Features
Adopting high-purity enameled copper wire for inner winding and high-temperature thermosetting insulating material for bobbin framework, the coil delivers consistent rated electromagnetic suction upon specified DC power input to reliably pull contactor armature and complete main contact closing operation. Multi-layer composite insulation structure between winding layers and outer housing effectively improves dielectric strength, resisting transient voltage surge and partial discharge caused by on-site power grid fluctuation. Integrated epoxy impregnation treatment eliminates internal winding air gaps to restrain coil temperature rise during continuous long-term energization and prevent inter-turn short-circuit failure induced by damp ambient air or dust accumulation. Standard built-in positioning structure matches fixed installation cavity of IC2800 contactor body to realize quick assembly and locking without extra customized mounting accessories. When input DC voltage falls below permissible lower limit, the coil cannot generate enough electromagnetic force to maintain contactor closed status, supporting automatic circuit breaking for undervoltage protection of downstream loads.
4. Electrical and Mechanical Technical Parameters
Nominal rated working voltage of this coil is 230VDC~250VDC direct current, which is the fixed design operating range for normal pull-in and holding performance. Allowable working voltage fluctuation scope is ±10% of rated DC voltage; long-term energization with voltage exceeding upper tolerance limit will lead to excessive winding heat and permanent insulation damage. Internal winding is strictly calibrated per GE factory standard to realize specified pull-in current and holding current parameters matching IC2800 contactor mechanical load characteristic. Outer overall dimension conforms to IC2800 contactor inner cavity installation size; unit gross weight is approximately 12 lbs (5.44kg) with standard cylindrical outer structural outline. Insulation class reaches Class B thermal rating to sustain continuous operating winding temperature up to 130℃ under normal full-load energization condition.
5. Environmental Application Specifications
Permissible continuous operating ambient temperature ranges from -25℃ to +70℃ for standard industrial indoor installation; short-time intermittent operation allows peak ambient temperature up to +85℃ without permanent component damage. Storage environment temperature for spare coils is controlled between -40℃ to +85℃ under dry non-condensing storage space with relative humidity maintained within 5%RH~90%RH and no corrosive gas or conductive dust existing in surrounding atmosphere. The coil can withstand regular low-frequency mechanical vibration from nearby running rotating machinery within 10Hz~50Hz; continuous long-term exposure to acid mist, saline fog and high-temperature steam environment is forbidden to avoid outer insulation aging and winding corrosion. For installation locations above 1000 meters altitude, proper derating of actual working voltage is required to prevent abnormal coil overheating.
6. Installation, Replacement and Routine Maintenance Instruction
During on-site replacement operation, power supply of matched contactor must be fully cut off and verified power-free before detaching old faulty coil from IC2800 contactor inner mounting cavity, then install 22D136G2A spare coil into designated positioning slot and lock with original contactor fixing hardware. After physical installation completes, check wiring terminal fastening tightness of coil power leads to eliminate loose contact causing unstable energization and intermittent pull-in failure. In regular equipment maintenance cycle, periodically inspect outer insulation surface integrity for cracking, oil contamination and carbonization trace caused by overheating; clean accumulated conductive dust around coil outer surface regularly. Only original full part number 22D136G2A spare coil is allowed for direct field replacement; non-OEM aftermarket substitute coils with mismatched winding parameters may cause inconsistent pull-in performance and accelerate premature failure of contactor mechanical parts.
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