SUPU Terminal Blocks and Industrial Connectors
SUPU industrial DIN-rail terminal blocks, PCB connectors, circular M8/M12 interfaces, switches, and relay modules: engineering selection for automation panels.
DIN-rail terminal blocks with push-in and screw clamp connections
SUPU DIN-rail terminal blocks provide reliable conductor terminations across industrial automation enclosures. Push-In and Cage Clamp architectures allow rapid tool-free insertion of rigid and ferruled flexible wiring, cutting assembly time during panel building.
- Series TP and TC featuring front-entry spring technology for dense enclosures
- Rugged screw clamp TU series engineered for intense industrial vibration profiles
- Integrated test sockets allowing immediate circuit probing without disassembly
- Multi-level and disconnect profiles saving valuable DIN-rail enclosure space
PCB terminal connectors and modular blocks for industrial electronics
SUPU PCB terminal connectors span versatile pin pitches and wire termination methods for printed circuit assemblies. Plug-in headers and barrier strip blocks ensure dependable transmission of low-level sensor signals, industrial communication data, and main power feeds.
- Plug-in screw and spring terminal plugs with contact pitch from 2.5 mm to 15 mm
- High-power barrier strip terminal assemblies for converter units and power modules
- Feed-through panel terminal blocks providing secure wiring through enclosure walls
- Tinned copper alloy contact elements maintaining minimal electrical resistance
Industrial circular connectors of M8, M12, and 7/8 inch series
SUPU circular cable connectors are engineered for sensor-actuator networks, servo drives, and distributed I/O modules. The portfolio offers straight and angled metal-shielded designs with threaded locking and IP67 environmental ingress protection for harsh workshop floors.
- M12 configurations in A, B, D, and X-coding delivering Gigabit Ethernet up to 10 Gbps
- Power coding variants S, T, K, and L for compact motor and actuator hookups
- Heavy-duty 7/8 inch threaded connectors for distributed machine power rails
- Molded cable assemblies with shielded polyurethane jackets resisting oil fluids
Industrial pushbutton switches and illuminated indicators TS2 and TS6
SUPU control switchgear series TS2 and TS6 are designed for machine tool consoles, transport lines, and plant operator desks. Sturdy housings, distinct tactile feedback, and durable LED indicators ensure reliable process management under heavy mechanical actuation cycles.
- TS2 series for 22 mm panel cutouts and compact TS6 series for 16 mm installations
- Emergency stop pushbuttons featuring latching mushroom heads and twist release
- Key-operated and illuminated rotary selector switches for multi-mode switching
- Monoblock LED pilot indicator lamps with high visibility and 50,000-hour service life
High-voltage quick-locking energy storage battery connectors
SUPU high-current connectors are engineered for battery energy storage containers, power conversion inverters, and battery racks. Sealed housings featuring intuitive bayonet coupling prevent accidental disconnects and provide touch-proof operator safety during assembly.
- Working ratings up to 1500 V DC and continuous load currents ranging from 100 to 350 A
- Sealed IP67 protection rating when mated for outdoor energy storage installations
- Keyed mechanical guides and distinct color coding preventing polarity reversal
- Full 360-degree rotating cable entry collar accommodating compact cabinet runs
Slim intermediate relay modules and DIN-rail power supply units
SUPU electronic interface modules comprise slim electromechanical relays, optocoupler isolators, and compact switching power supplies. Modules starting from 6.2 mm body width convert signals between programmable logic controllers and high-power plant actuators.
- Ultra-slim relays with 6.2 mm housing width maximizing density inside cabinets
- Multi-channel relay terminal modules with up to 24 outputs for PLC load expansion
- Regulated DIN-rail switching power supply units delivering clean DC control bus power
- Integrated freewheeling diodes and surge suppression clamping inductive voltage spikes
Engineering features of Push-In and Cage Clamp DIN-rail terminals
SUPU DIN-rail terminal blocks incorporating Push-In and Cage Clamp spring architectures are engineered for high-density control panels and power distribution enclosures.
Stainless steel tension springs maintain constant clamping pressure on conductor strands, dynamically accommodating copper thermal expansion cycles and mitigating wire loosening induced by adjacent machinery vibrations.
Front-entry conductor routing accelerates cabinet wiring within cramped wire ducts. Tin-plated copper current bars maintain low contact impedance and long-term electrical conductivity.
For high-amperage power terminations, the manufacturer produces TU screw clamp units with hardened steel cages that prevent strand pinching under rated torque.
Architecture of PCB terminal connectors for industrial electronics
Plug-in and fixed PCB terminal connectors manufactured by SUPU deliver dependable routing for digital signals, analog measurements, and DC control power on industrial controllers.
The family includes horizontal and vertical male pin headers with terminal pin spacings from 2.5 mm up to 15.0 mm, enabling compact input-output board layouts. Matching cable sockets feature screw terminals with anti-loosening wire protectors or rapid tool-free spring inserts.
For power inverter boards, heavy-duty barrier blocks with transparent insulation covers eliminate accidental contact with energized screw posts during routine system commissioning and preventive maintenance routines.
Specifications of M8, M12, and 7/8 inch circular connectors for fieldbuses
SUPU circular connectors compliant with M8, M12, and 7/8 inch standards deliver resilient field connections for position sensors, servo actuators, and remote I/O junction modules.
Robust metal shells and full 360-degree shielding protect delicate sensor instrumentation from high-frequency electromagnetic noise generated by welding equipment and frequency inverters.
When locked, the connectors achieve an IP67 environmental ingress rating, preventing oil fluids, cooling emulsions, and airborne dust particles from entering contact chambers.
The X-coded M12 profile supports high-speed data transmission up to 10 Gbps in Industrial Ethernet rings, while S-coded and T-coded variants supply motor drive power.
Mechanical durability of TS2 and TS6 industrial switches and indicators
Heavy-duty pushbutton control stations from SUPU series TS2 and TS6 are designed for machine tool consoles, crane pendants, and continuous assembly line control desks.
Pushbuttons of the TS2 series with 22 mm mounting diameter and TS6 compact units for 16 mm panel holes feature rugged rocker mechanics rated for more than three million actuation cycles. Modular contact blocks clip onto actuator brackets without screws, streamlining control circuit customization.
Wide-angle LED indicator units preserve visibility under intense overhead factory illumination while drawing minimal electrical energy during round-the-clock plant operations.
High-voltage safety of BESS energy storage battery connectors up to 1500 V
Quick-locking electrical connectors from SUPU developed for BESS energy storage containers and solar string inverters handle continuous currents up to 350 A at rated voltages up to 1500 V DC.
Flame-retardant thermoplastic shells rated UL94-V0 feature mechanical indexing guides and contrasting polar color identification, preventing hazardous reverse-polarity hookups during rack installation.
An integrated snap-latch mechanism with positive visual lock confirmation prevents inadvertent disengagement, while IP2X touch protection shields technician hands from live terminals during routine maintenance procedures.
High-density layout of interface relays and DIN-rail power modules
Panel space optimization inside control cabinets is achieved by utilizing ultra-slim SUPU intermediate relays measuring just 6.2 mm in module width.
These electronic interface components integrate electromechanical or solid-state switches, LED status indicators, and inductive surge suppression circuits inside a single compact housing.
Multi-channel relay terminal modules with 8, 16, and 24 channels connect directly to PLC outputs via ribbon cable headers, significantly reducing enclosure wiring clutter. High-current SPDB distribution blocks streamline three-phase power routing across modular circuit breakers.
SUPU and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of SUPU and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.
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Documents and sources
- Official website of SUPU — industrial terminal blocks and connector catalogs
- SUPU manufacturing overview — production facilities and history in Cixi City
- DIN-rail terminal blocks — Push-In spring clamps and TU screw clamp units
- PCB terminal connectors — plug-in headers and barrier blocks for electronics
- Circular connectors M8, M12 and 7/8 — IP67 sensor and industrial bus cabling
- Industrial pushbuttons and switches — TS2 and TS6 series with pilot indicators
- Energy storage connectors — heavy-duty 1500 V BESS battery connection assemblies
- Electronic interface modules — slim intermediate 6.2 mm relays and power modules
