The DSTI ESET Series Ethernet Through-Bore Electrical Slip Rings, engineered and manufactured by Dynamic Sealing Technologies, Inc. (DSTI - USA), represent state-of-the-art dynamic electrical connection technology designed specifically for heavy-duty automation machinery requiring simultaneous high-speed Ethernet communications and robust power circuits across a continuous 360-degree rotating shaft.

The ESET Series serves as an advanced direct drop-in replacement for the industry-standard AC4598 Ethernet series (models AC459804X384, AC459808X385, AC459814X385, AC459820X385, and AC459822X384). Featuring a standardized 1.5-inch [38.1 mm] center through-bore, the assembly mounts effortlessly over machine drive shafts, utility plumbing conduits, or co-axially integrates with DSTI fluid rotary unions.

The ESET portfolio is scaled across specialized models tailored for distinct network bandwidth and power capacities:
1. Model ESET4 (Drop-in for AC459804X384): Incorporates 4 wires configured for (1x) 100Base-T Fast Ethernet connection (100 Mbps), housed in an ultra-short 2.130" [54 mm] body envelope rated at 240V.
2. Model ESET8 (Drop-in for AC459808X385): Incorporates 8 wires configured for (1x) 1000Base-T Gigabit Ethernet connection (1 Gbps), with a 3.070" [78 mm] body length rated at 240V, guaranteeing zero jitter on high-bandwidth GigE Vision video streams.
3. Model ESET68 (Drop-in for AC459814X385): Hybrid 14-circuit configuration combining (6x) 10A power circuits rated up to 600V + (1x) 1000Base-T Gigabit Ethernet connection (1 Gbps), with a 4.010" [102 mm] body length.
4. Model ESET128 (Drop-in for AC459820X385): High-capacity 20-circuit hybrid unit combining (12x) 10A power circuits rated up to 600V + (1x) 1000Base-T Gigabit Ethernet connection (1 Gbps), with a 4.940" [125 mm] body length.
5. Model ESET184 (Drop-in for AC459822X384): High-density 22-circuit hybrid unit combining (18x) 10A power circuits rated up to 600V + (1x) 100Base-T Fast Ethernet connection (100 Mbps), with a 4.940" [125 mm] body length.

Key Engineering Features & Operational Advantages:
- 1.5-Inch [38.1 mm] Through-Bore Architecture: Provides direct mounting versatility over rotating mechanical shafts. It also allows direct coaxial coupling to the back of DSTI fluid rotary unions (GP, LT, and SE Series), yielding a unified "All-in-One" solution for fluid, electrical power, and Gigabit Ethernet transmission.
- Advanced Silver Fiber Brush Contact Technology: Multi-filament precious silver fiber brush bundles interface with rotor tracks under low contact force, requiring zero periodic grease lubrication and generating virtually zero conductive wear debris. This eliminates contact arcing, maintains consistent high-frequency signal integrity, and extends service intervals to tens of millions of revolutions.
- IEEE 802.3 Compliant Industrial Ethernet Transmission: Pre-terminated with standard RJ45 connectors wired to the T568B pinout, fully compatible with demanding real-time industrial fieldbus protocols including EtherCAT, PROFINET, Ethernet/IP, Modbus TCP, and GigE Machine Vision cameras.
- High-Voltage 600V / 10A Power Capacity: 16 AWG power lines reliably handle high-current inductive loads from AC servo motors, industrial heaters, and solenoid valves without electromagnetic crosstalk into the adjacent twisted-pair Ethernet channels.
- Premium Wiring Specification: Features 24 AWG twisted-pair Cat6 cabling for Ethernet channels and 16 AWG stranded tin-plated copper leads for 10A power circuits. Standard lead length measures 36 inches [914 mm] on both rotor and stator ends.

Typical Industrial Applications:
- Multi-station automated rotary indexing tables integrating pneumatic manifolds, digital sensors, and EtherCAT/PROFINET networks.
- Multi-axis articulated robotic arms equipped with wrist-mounted Machine Vision defect inspection cameras.
- High-speed rotary packaging machinery, rotary bottle labeling carousels, and automated stretch wrappers.
- Radar surveillance tracking pedestals, satellite communications, and high-resolution medical scanning apparatus.

• Manufacturer: DSTI (Dynamic Sealing Technologies, Inc.)
• Origin / Country of Manufacture: USA
• Product Line: ESET Series Ethernet Through-Bore Electrical Slip Rings
• Model Configurations & Dimensional Breakdowns:
  - ESET4 (Drop-in replacement for AC459804X384):
    + Total Circuits: 4 Circuits
    + Channel Breakdown: (1x) 100Base-T Ethernet (100 Mbps)
    + Voltage Rating: 240V AC/DC
    + Capsule Length: 2.130" [54.0 mm] | Outer Diameter: 3.900" [99.06 mm]
  - ESET8 (Drop-in replacement for AC459808X385):
    + Total Circuits: 8 Circuits
    + Channel Breakdown: (1x) 1000Base-T Gigabit Ethernet (1 Gbps)
    + Voltage Rating: 240V AC/DC
    + Capsule Length: 3.070" [78.0 mm] | Outer Diameter: 3.900" [99.06 mm]
  - ESET68 (Drop-in replacement for AC459814X385):
    + Total Circuits: 14 Circuits
    + Channel Breakdown: (6x) 10A Power + (1x) 1000Base-T Gigabit Ethernet (1 Gbps)
    + Voltage Rating: 600V (16 AWG power lines) / 240V (Ethernet cable)
    + Capsule Length: 4.010" [102.0 mm] | Outer Diameter: 3.900" [99.06 mm]
  - ESET128 (Drop-in replacement for AC459820X385):
    + Total Circuits: 20 Circuits
    + Channel Breakdown: (12x) 10A Power + (1x) 1000Base-T Gigabit Ethernet (1 Gbps)
    + Voltage Rating: 600V (16 AWG power lines) / 240V (Ethernet cable)
    + Capsule Length: 4.940" [125.0 mm] | Outer Diameter: 3.900" [99.06 mm]
  - ESET184 (Drop-in replacement for AC459822X384):
    + Total Circuits: 22 Circuits
    + Channel Breakdown: (18x) 10A Power + (1x) 100Base-T Ethernet (100 Mbps)
    + Voltage Rating: 600V (16 AWG power lines) / 240V (Ethernet cable)
    + Capsule Length: 4.940" [125.0 mm] | Outer Diameter: 3.900" [99.06 mm]
• Center Through-Bore Size: 1.500" [38.1 mm]
• Ethernet Connector Standard: Pre-terminated RJ45 connectors wired to T568B, IEEE 802.3 compliant
• Maximum Operating Speed: 250 RPM continuous
• Maximum Electrical Noise: ≤ 100 Milliohms (mΩ) at rated speed
• Contact Metallurgy: Multi-contact Silver (Ag) Fiber Brush technology (lubrication-free)
• Lead Wire Gauges:
  - Ethernet Channels: 24 AWG twisted-pair Cat6 cable
  - 10A Power Channels: 16 AWG stranded tin-plated copper
• Standard Lead Length: 36 inches [914 mm] on both rotor and stator ends
• Internal Bearings: Dual pre-lubricated high-precision ball bearings
• Ingress Protection: Splash seals for dust and moisture resistance
• Operating Temperature Range: -40°C to +80°C [-40°F to +176°F]
• Mechanical Mounting: Shaft mounting via set-screws with anti-rotation tab; directly compatible with DSTI fluid rotary unions.