Mercotac Model 110
One Conductor, 10 Amp
- Mounts at the end of a rotating axis.
- Mount by the press fit receptacle accessory.
- Wire attaches using the accessory receptacle or cap.
- This model is designed to mount at the bottom of a vertical rotating shaft.
Model No. | Terminals | Voltage AC/DC | Max Amp Rating | Max. Freq. MHz | Contact Resistance | Max. RPM | Temp Max. F (C) / Min. F (C) | Torque (gm-cm) | Circuit Separation |
110 | 1 | N/A | 10 | 200 | <1m? | 3600 | 140 (60) /-20(-29) | 35 | N/A |
110-SS | 1 | N/A | 10 | 200 | <1m? | 3600 | 140 (60) /-20(-29) | 35 | N/A |
110-L | 1 | N/A | 10 | 200 | <1m? | 1200 | 140 (60) /-20(-29) | 10 | N/A |
“L” designator indicates low torque”SS” designator indicates stainless steel ball bearing (recommended for wet or corrosive environments)
Note: The anodized aluminum housing of the 110 series Mercotac is electrically “hot” to the internal conductor.
Model 110 is typically mounted by the knurled metal receptacle, which is press-fit into the rotating member of the machine. When mounting horizontally, use the similar model 110-T instead to be able to mount the Mercotac rotary connector so that the body of the connector rotates.
Model 110-T & Model 105
One Conductor, 10 Amp & One Conductor, 4 Amp

- Mounts at the end of a rotating axis.
- Mount by the press fit receptacle accessory.
- Wires attach using the accessory receptacle and cap.
Mercotac models 110-T & 105 are ideal for shaft grounding applications, including HVAC and VFD motor shaft grounding, thus avoiding very costly bearing damage.
Model No. | Terminals | Voltage AC/DC | Max Amp Rating | Max. Freq. MHz | Contact Resistance | Max. RPM | Temp Max. F (C) / Min. F (C) | Torque (gm-cm) | Circuit Separation |
110-T | 1 | N/A | 10 | 200 | <1m? | 3600 | 140 (60) /-20(-29) | 35 | N/A |
110-TS | 1 | N/A | 10 | 200 | <1m? | 3600 | 140 (60) /-20(-29) | 35 | N/A |
110-TL | 1 | N/A | 10 | 200 | <1m? | 1200 | 140 (60) /-20(-29) | 10 | N/A |
105 * | 1 | N/A | 4 | 200 | <1m? | 7500 | 212 (100) /45(7) | <10 | N/A |
105-SS * | 1 | N/A | 4 | 200 | <1m? | 7500 | 212 (100) /45(7) | <10 | N/A |
“T” designator indicates standard model
“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)
* indicates high temp. high RPM
Note: The anodized aluminum housing of the 110 & 105series Mercotac is electrically “hot” to the internal conductor.
Model 110-T is typically mounted by the knurled metal receptacle, which is press-fit into the rotating member of the machine When mounting horizontally, mount the Mercotac so the body of the connector rotates.
Model 1250
One Conductor, 250 Amp

- 4 nuts included
- Boot Kit available
- Available in metric thread (1250-M / 1250-MS / 1250-MSX)
- Available with stainless steel ball bearing (1250-SS / 1250-MS) (recommended for wet or corrosive environments)
- Available with stainless steel body and bearing (1250-SX / 1250-MSX) (recommended for wet or corrosive environments)
Mercotac model 1250 series are ideal connectors for high-power applications such as on plating electrodes and welding cable reels.
Model No. | Terminals | Voltage AC/DC | Max Amp Rating | Max. Freq. MHz | Contact Resistance | Max. RPM | Temp Max. F (C) / Min. F (C) | Torque (gm-cm) | Circuit Separation |
1250 | 1 | N/A | 250 | 200 | <1m? | 1200 | 140 (60) /-20(-29) | 250 | N/A |
1250-SS | 1 | N/A | 250 | 200 | <1m? | 1200 | 140 (60) /-20(-29) | 250 | N/A |
1250-M | 1 | N/A | 250 | 200 | <1m? | 1200 | 140 (60) /-20(-29) | 250 | N/A |
1250-MS | 1 | N/A | 250 | 200 | <1m? | 1200 | 140 (60) /-20(-29) | 250 | N/A |
1250-SX | 1 | N/A | 250 | 200 | <1m? | 1200 | 140 (60) /-20(-29) | 250 | N/A |
1250-MSX | 1 | N/A | 250 | 200 | <1m? | 1200 | 140 (60) /-20(-29) | 250 |
“SS” designator indicates stainless steel ball bearing
“M” designator indicates metric thread (M10 x 1.5)
“MS” designator indicates metric thread & stainless steel ball bearing
“SX” designator indicates stainless steel body & bearing
“MSX” designator indicates metric thread & stainless steel body & bearing
Note: The housing of the 1250 series Mercotac connector (anodized aluminum or stainless steel) is electrically “hot” to the internal conductor.
Model 1250 is typically mounted by the threaded stud on either end or by the black body using a set screw. When mounting horizontally, mount the Mercotac so the body of the connector rotates.
Model 1500 & 1500-1
One Conductor, 500 Amp & One Conductor, 500 Amp with dust seal


- 2 hex nuts included as shown
- Available with external dust seal (Model 1500-1)
- Available with stainless steel ball bearing (Model 1500-SS)
Mercotac model 1500 series are ideal connectors for high-power applications such as on plating electrodes and welding cable reels that require more power than the smaller Mercotac model 1250 series connectors. They come standard with a stainless steel housing. Available with stainless steel ball bearing (1500-SS or 1500-1-SS) (recommended for wet or corrosive environments).
Model No. | Terminals | Voltage AC/DC | Max Amp Rating | Max. Freq. MHz | Contact Resistance | Max. RPM | Temp Max. F (C) / Min. F (C) | Torque (gm-cm) | Circuit Separation |
1500 | 1 | N/A | 500 | 200 | <1m? | 300 | 140 (60) /-20(-29) | 750 | N/A |
1500-SS | 1 | N/A | 500 | 200 | <1m? | 300 | 140 (60) /-20(-29) | 750 | N/A |
1500-1 | 1 | N/A | 500 | 200 | <1m? | 300 | 140 (60) /-20(-29) | 750 | N/A |
1500-1-SS | 1 | N/A | 500 | 200 | <1m? | 300 | 140 (60) /-20(-29) | 750 | N/A |
Model 1500 is typically mounted by the threaded stud on either end or by the steel body using a set screw. When mounting horizontally, mount the Mercotac so the body of the connector rotates.
Reference : mercotac.com
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