CryoSaver Current Leads

With over a thousand current leads in the field, the CryoSaver™ HTS current leads have demonstrated outstanding, time-tested performance for more than a decade. CryoSaver™ leads outperform competing solutions with unsurpassed build quality, mechanical strength, and performance.

CryoSaver™ second generation of current leads, CryoSaver™ II, rated from 150A to more than 2000A, deliver significantly improved performance with lower heat leak, reducing heat load and losses for client’s systems. Applications include MRI, NMR and beamline magnets as well as driven (non-persistent) superconducting magnets. Leads are available in a number of formats:

Standard and short leads

Standard CryoSaver™ leads use a fibreglass composite body to encase the HTS wire for structural integrity. Nickel plated copper end caps are used for warm and cold end connections. Shorter versions of standard current leads are available for space constrained applications.


CryoSaver™ current leads which include custom terminals, specific dimensions, complex geometry and high current (>10kA), can be designed and manufactured to meet client requirements.

Ballasted leads

These incorporate a current shunt in the lead body to protect inductive loads in case of lead quench.  Length, terminal design and current capacity can be customised at the time of order.

Sapphire Heat Sink Kits

HTS-110 has developed Sapphire Heat Sink Kits for use on standard length leads to optimise the thermal contact between the leads and heat sinks. HTS-110 recommends the use of these with all current leads.  One kit is sufficient for a pair of current leads of less than 1000A.  Four kits are required for a pair of current leads of 1000A plus.


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