The PRM is an ultra-low shock, electrically initiated, single-shot, and factory refurbishable release mechanism that has the ability to carry a high tensile preload until commanded to release. The preload is applied through a release rod held in place by two separable spool halves which are in turn held together by tight winding of restraining wire. The restraint wire is held in place by redundant electrical fuse wires; actuation of either circuit allows release, assuring maximum reliability. When sufficient electrical current is applied, the restraint wire unwinds allowing the spool halves to separate releasing the release rod and the associated preload. The tunable separation springs provide the push off force to achieve the required separation velocity.

The PRM has a location to hold either a telemetry separation switch or 37 pin separation connector. The telemetry switch is commonly used to verify spacecraft separation from the launch vehicle, and the separation connector can be used for separation detection, ground power delivery or communications from the launch vehicle to the spacecraft.

• Ultra-low release shock (<500 g)
• Redundant actuation circuit
• Can be operated with standard launch vehicle firing circuitry
• Launch vehicle to payload connector interface
• Non-explosive hold down & release function
• No debris generation
• High simultaneity of multiple hold-down points
• Customizable separation velocity
• Wide operating temperature range
• Qualified to standard launch environments
• Space-rated materials
• Factory refurbishment available
• NEA® HDRM with more than 25 years of flight heritage

• Satellite and spacecraft dispensing
• Launch vehicle and missile stage fairing separation
• Missile payload separation

Download PRM Data Sheet