Model 110T

Brushless Slip Ring

One Conductor,
4 or 10 Amp

Model 105

Brushless Slip Ring

One Conductor,
4 or 10 Amp

The Mercotac® models 110-T and 105 brushless slip rings are used to provide reliable shaft grounding solutions, making them highly suitable for HVAC and VFD motor shaft grounding applications These models ensure efficient electrical grounding, minimizing the risk of costly bearing damage and enhancing overall system performance. The model 110-T is also used in low current plating and welding applications. Typically the model 105 is used in higher rpm applications. These slip rings excel in industries such as electroplating, automation machinery, mineral processing, and welding.

Model 110T & 105 Specifications

Model Number No. of Terminals Body material Bearing Type  Max. Rotational Torque
(gf-cm)
Max. Voltage Rating
(AC/DC)
Max. Current Rating
(Amps
Max. Rotational Speed
(RPM)
Operating Temp.
Min °F (°C)
Max °F (°C)
Max. Frequency (MHz) Contact Resistance
(mΩ)
Circuit Separation
(MΩ)
110-T 1 Anodized Aluminum Chrome Steel 35 N/A 10 3600 Min -20 (-29)
Max 140 (60)
200 <1 N/A
110-TS Stainless Steel
110-TL Chrome Steel 10 1200
105 Chrome Steel <10 4 7500 Min 45 (7)
Max 140 (60
105-SS Stainless Steel

“T” designator indicates standard model (receptacle mount)
“TS” designator indicates stainless steel ball bearing (recommended for wet or corrosive environments)
“TL” designator indicates low torque
“SS” designator indicates stainless steel ball bearing (recommended for wet or corrosive environments)
Note: The body of the 110-T / 105 series Mercotac is electrically “hot” to the internal conductor

Model 110T & 105 Accessories

5920

one contact receptacle

5921-S

one contact receptacle w/ 6″ wire

55337

ring terminal (12-10 AWG)

Receptacle used for mounting to rotating device.
Accessories are required for wire connections. Order Separately

Model 110T & 105 Connections

Model 110T & 105 Standard Wire Connections

Metal receptacle press fits into rotating member of machine.

Plastic cap with solder lug to attach stationary wire.

The Mercotac unit plugs into the receptacle after the receptacle is press fit into the rotating member of the machine.

The Mercotac unit plugs into the receptacle after the receptacle is press fit into the rotating member of the machine.

Note: The metal receptacle used for mounting is electrically conductive. Therefore, if desired, it can be used as the electrical connection between the 110 and the rotating member of the machine using Part #5920. However, if an insulated mounting at the rotating member is being used, then Part #5921-S with six inch wire lead is used for the electrical connection.

Model 110T & 105 Suggested Mounting Methods

Models 105 & 110T are typically mounted by either the black body or the contact on either end. Body mount typically uses a set screw or split clamp. Contact mount is held in the installed receptacle by a spring fit. It is best to mount the Mercotac so the body of the connector rotates

Receptacle Mount Hole Dimensions

MODEL HOLE DIAMETER (Ø) * DEPTH
5920, 5921-S .283″    (7.19) .35″    (8.89)
*Inch (mm) Tolerance Ø    +.001″ (+.025)
     -.000″ (-.000)

Top Mount with Conductive Shaft

Preferred mounting orientation.

Bottom Mount with Conductive Shaft

The Mercotac body is electrically hot. An electrically insulated shaft can isolate it, if needed.

Horizontal Mount with Conductive Shaft

The Mercotac body is electrically hot.
An electrically insulated shaft can isolate it, if needed.

Thermal & Electrically Insulated
Horizontal Mount

Use if electrical and thermal insulation is needed

Vibration Isolating Mount

Protective Housing Mount with Conductive Shaft

Installation Notes:

  • The up arrow should not point below horizontal
  • Do not solder to or bend connector tabs
  • Avoid lateral forces and mechanical loads (overly stiff or tight wires)
  • Do not rigid mount both ends of connector
  • Limit mounting eccentricity (runout / wobble) to .005″ (.13mm)
  • Provide overload protection within the circuit
  • Avoid vibration and bumping motions