Rotary Electrical Connectors

Mercotac® Rotary Electrical Connectors

Mercotac® Rotary Electrical Connectors operate on a superior principle. They offer an extremely low resistance electrical connection because the electrical conduction path is a liquid metal which is molecularly bonded to the contacts. The Mercotac® connection is constant and unchanged for the life of the rotary electrical connector. Brush slip rings are usually composed of a rotating metal ring upon which a graphite or metal brush rubs and transfers the electrical signal or current. While brush slip rings are technically simple in operation, this rubbing interface is fraught with problems that include wear, high electrical resistance, oxidation, and resistance fluctuations which causes electrical noise.

 

*Important Information for customers in Canada* The Mercotac rotating electrical connectors shown above contain a small amount of mercury. Effective November 8, 2015 Canada put in place regulations restricting the import and manufacture of products containing mercury. See more information on these regulations here. However, there is an exemption in place that allows for the replacement of Mercotac parts that were in service prior to Nov 8, 2015. Is your requirement for replacement of existing parts in service prior to Nov 8, 2015?

If yes, we will quote you the requested Mercotac parts above right away
.

If no, and your requirement is for a new application and you require a non-mercury slip ring please see the models we offer here. Please advise if one of the non-mercury slip ring models meets your requirements and which part number to quote you. If you require assistance figuring out a new slip ring for your application then please confirm the following information:

  1. Number of conductors required
  2. The voltage and current on each conductor (or signal)
  3. The maximum RPM
  4. The temperature range where the slip ring will be operating
  5. The IP rating required for the slip ring – used indoors or outside?


Download our complete product catalog in PDF format or click on a model below.

P R O D U C T   O V E R V I E W

Model 110
10 Amp
Model 110-T & 105
10 Amp / 4 Amp
Model 1250
105B 250 Amp
Model 205
4 Amp
Model 230
30 Amp, 250V
Model 235
30 Amp, 500V
Model 305
4 Amp
Model 331
2@4amps, 1@30amps
Model 330
30 Amp
Model 335
30 Amp, 500V
Model 430
2@4 amps, 2@30 amps
Model 435
4@30 amps
   
  Model 630
2@4 amps, 4@30 amps
 
   
  Model 830
2@4 amps, 6@30 amps
 

 

S P E C I F I C A T I O N S   O V E R V I E W
Model
number
Conductors Voltage
range
AC/DC
Current
rating
@240VAC
(amp.)
Max. freq.
(MHz)
Contact
Resist.
Max.
RPM
Operating temperature
°F (°C) max. / °F (°C) min.
Typ.
Rotation
torque
(gm-cm)
Circuit
Sep.
Coaxial
110 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
110-T 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
205 2 0-250 4 200 <1m 2000 140 (60) / 45 (7) 75 >25M
205-H 2 0-250 4 200 <1m 3600 140 (60) / 45 (7) 35 >25M
205-L 2 0-250 4 200 <1m 1200 140 (60) / -20 (-29) 20 >25M
305 3 0-250 4 200 <1m 1800 140 (60) / 45 (7) 100 >25M
305-L 3 0-250 4 200 <1m 1000 140 (60) / -20 (-29) 100 >25M
Modular
1250 1 n/a 250 200 <1m 1200 140 (60) / -20 (-29) 250 n/a
230 2 0-250 30 200 <1m 1800 140 (60) / -20 (-29) 200 >25M
235 2 0-500 30 (@ 500V) 100 <1m 1200 140 (60) / -20 (-29 400 >50M
330 3 0-250 30 100 <1m 1200 140 (60) / -20 (-29) 300 >25M
331 3 0-250 2@4/1@30 100 <1m 1800 140 (60) / -20 (-29) 200 >25M
335 3 0-500 30 (@ 500V) 100 <1m 500 140 (60) / -20 (-29 700 >50M
430 4 0-250 2@4/2@30 100 <1m 1200 140 (60) / -20 (-29) 400 >25M
435 4 0-500 30 100 <1m 300 140 (60) / -20 (-29 850 >50M
630 6 0-250 2@4/4@30 100 <1m 300 140 (60) / -20 (-29) 700 >25M
830 8 0-250 2@4/6@30 100 <1m 200 140 (60) / -20 (-29) 1000 >25M

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