{"id":72330,"date":"2026-07-08T11:46:07","date_gmt":"2026-07-08T03:46:07","guid":{"rendered":"https:\/\/www.scondar.com\/?p=72330"},"modified":"2026-07-08T11:46:07","modified_gmt":"2026-07-08T03:46:07","slug":"factory-automation-wire-harness-connector","status":"publish","type":"post","link":"https:\/\/www.scondar.com\/ru\/2026\/07\/08\/factory-automation-wire-harness-connector\/","title":{"rendered":"Factory Automation Wire Harness: Connector Selection for Industrial Controller I\/O Interfaces"},"content":{"rendered":"

In factory automation environments, the wire harness connecting industrial controllers to field devices is the backbone of reliable signal and power transmission. Whether it is a PLC driving servo axes, an I\/O module polling discrete sensors, or an industrial Ethernet switch linking production cells, the connectors selected for these applications must perform across thermal cycling, mechanical stress, and continuous operation cycles that consumer-grade components simply cannot sustain. This article walks through the key engineering criteria for selecting factory automation wire harness connectors, and how SCONDAR<\/b><\/strong>‘s SCT2011 series offers a footprint-compatible, high-performance alternative to the Hirose DF11 in dual-row, space-constrained I\/O interface designs.<\/p>\n

Application Context & Design Challenge<\/b><\/strong><\/h2>\n

Modern factory automation control cabinets operate in tightly packed enclosures where PCB real estate is at a premium. Engineers selecting connectors for the following scenarios face a recurring set of trade-offs:<\/p>\n

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1. Dual-Row Signal Density in Compact I\/O Modules<\/b><\/strong><\/h3>\n

Industrial I\/O modules typically require between 4 and 30 signal lines routed from the PCB to field wiring. Single-row connectors are often insufficient, and using two single-row connectors side by side wastes horizontal space. A dual-row configuration<\/b><\/strong>\u00a0delivering double the circuit count within a 5 mm board width solves this directly \u2014 a footprint already proven at scale in the industrial printer and controller market.<\/p>\n

2. Vibration and Mechanical Stress in Continuous Operation<\/b><\/strong><\/h3>\n

Factories running multi-shift operations subject equipment to sustained vibration from conveyor belts, presses, and cooling fans. A friction-lock or box-style header design prevents intermittent signal loss caused by connector micro-disengagement. In higher-vibration cells \u2014 particularly those with rotating machinery \u2014 a positive-locking or box-type header with high PCB retention force is strongly preferred.<\/p>\n

3. Assembly Process: Crimp Termination at Scale<\/b><\/strong><\/h3>\n

Automated crimping is the industry standard for high-volume wire harness production. Connector compatibility with industry-standard mini-fin or open-barrel terminals, combined with SMT or through-hole headers that survive reflow or wave-solder processes, is a baseline requirement for any automation wire harness shop.<\/p>\n

4. Current and Voltage Rating for Mixed Signal and Power<\/b><\/strong><\/h3>\n

While many I\/O signals operate below 1 A, industrial automation modules frequently bundle low-current digital I\/O with power rails for indicators, solenoid drivers, or field-bus terminations. A connector rated at 3 A per circuit with 250 V AC withstand voltage provides headroom across both signal and low-power auxiliary circuits without requiring separate connector families.<\/p>\n

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SCONDAR Product Matching for Factory Automation Wire Harness<\/b><\/strong><\/h2>\n

The SCONDAR <\/b><\/strong>SCT2011 series is a dual-row wire-to-board connector engineered as a direct footprint-compatible alternative to the Hirose DF11, sharing the same 2.0 mm pitch, dual-row contact arrangement, and 5 mm body width. It covers circuit sizes from 2\u00d72 to 2\u00d715 positions<\/b><\/strong>\u00a0(4 to 30 total circuits) and is rated at 3 A per circuit, making it well-suited for the signal-density and current requirements of industrial I\/O modules, controller boards, and factory automation harnesses.<\/p>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/b><\/strong><\/td>\nSCONDAR SCT2011<\/a> \u0422\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438<\/b><\/strong><\/td>\n<\/tr>\n
\u041a\u043e\u043d\u0442\u0430\u043a\u0442\u043d\u0430\u044f \u043f\u043b\u043e\u0449\u0430\u0434\u043a\u0430<\/td>\n2,0 \u043c\u043c<\/td>\n<\/tr>\n
Circuit Count<\/td>\n2\u00d72 to 2\u00d715 positions (4\u201330 circuits)<\/td>\n<\/tr>\n
\u0422\u0435\u043a\u0443\u0449\u0438\u0439 \u0440\u0435\u0439\u0442\u0438\u043d\u0433<\/td>\n3 A per circuit<\/td>\n<\/tr>\n
\u041d\u043e\u043c\u0438\u043d\u0430\u043b\u044c\u043d\u043e\u0435 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435<\/td>\n250 V AC<\/td>\n<\/tr>\n
Temperature Range<\/td>\n-25\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n
\u0421\u043e\u043f\u0440\u043e\u0442\u0438\u0432\u043b\u0435\u043d\u0438\u0435 \u043a\u043e\u043d\u0442\u0430\u043a\u0442\u043e\u0432<\/td>\n\u2264 20 m\u03a9<\/td>\n<\/tr>\n
Insulation Resistance<\/td>\n\u2265 1,000 M\u03a9<\/td>\n<\/tr>\n
Wire Gauge (Crimp)<\/td>\nAWG #22 to #28<\/td>\n<\/tr>\n
Termination Method<\/td>\nCrimp (open-barrel terminal)<\/td>\n<\/tr>\n
Header Options<\/td>\nSMT and Through-Hole; Straight and Right-Angle<\/td>\n<\/tr>\n
Plating Options<\/td>\nGold and Tin available<\/td>\n<\/tr>\n
Original Part Reference<\/td>\nHirose DF11 (2.0 mm pitch, dual-row)<\/td>\n<\/tr>\n
RoHS \/ REACH<\/td>\nCompliant<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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Design-In Considerations: Mechanical & Process<\/b><\/strong><\/h2>\n

Crimp Termination Quality<\/b><\/strong><\/h3>\n

The SCT2011 uses open-barrel crimp terminals, which are the industry standard for automated wire processing in factory automation harness shops. Key quality gates during production include:<\/p>\n