Product Overview
International Rectifier J116B17 Full-Wave Selenium Rectifier Stack
Condition
Unused new old stock (NOS). Stored without original packaging, showing minor surface scuffs and handling marks on the cooling plates from storage. Markings legible: IOR J116B17. Central mounting rod, compression hardware, brass terminal lugs, and jumper wire are intact.
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Product Overview
Heavy-duty industrial selenium power assembly configured as a single-phase full-wave bridge. Built with twenty square metal cooling fin plates assembled under spring tension along a central 3/8-16 threaded tie rod, this J116B17 assembly delivers up to 116 V DC at 20.0 A DC output from a 144 V AC input. Stamped brass solder and bolt-down lug terminals provide heavy-gauge wiring connections with painted color dots for circuit orientation.
Key Features
- Single-phase full-wave bridge selenium assembly
- Rated output: 116 V DC at 20.0 A DC continuous
- Maximum input rating: 144 V AC
- Plate array: 20 black square cooling fins measuring 5.0 in x 6.0 in
- Mounting: central 3/8-16 threaded steel tie rod with retention hex nuts and star lockwashers
- Terminals: brass lug tabs with factory-installed jumper wire and polarity color-dot coding
Applications
- Direct replacement for vintage DC power supplies, battery chargers, and plating equipment
- Restoration of vintage tube transmitters, linear amplifiers, and industrial machinery power circuits
- Legacy elevator controls, crane hoist brakes, and magnetic chuck power units requiring high surge tolerance
- Bench power supply builds and high-current DC restorations requiring authentic period components
Frequently Asked Questions
What is the electrical circuit configuration of this assembly?
It is configured as a single-phase full-wave bridge, providing full-wave rectification from an AC line input to direct current output.
What are the physical mounting requirements for the assembly?
The unit mounts via the protruding central 3/8-16 threaded tie rod, which extends beyond both end plates with retention nuts and lockwashers.
Are additional mounting brackets or wiring harnesses included?
Not included.
How are the connection points identified on the terminal lugs?
The brass solder and screw lugs along the top of the plates feature painted color dots marking phase inputs and DC polarity outputs, along with the factory link connecting corresponding plate sections.
Built when industrial power supplies meant heavy steel, honest plate spacing, and convection cooling that never needed a software patch. Drop this classic International Rectifier assembly into your cabinet and restore authentic DC power to your machine.
