R2137A4 Standoff Insulator, Single

Part # R2137-A4


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R2137A4 Standoff Insulator, Single

Part # R2137-A4

This Mar-Bal brand standoff is used to create an insulating air gap between a busbar and surrounding material, for example an enclosure gear tray. Manufactured from high grade, glass reinforced polyester which has very high mechanical strength and resistance to shattering, these insulators are especially good at preventing ‘tracking’ of current even in high temperatures and humidities.  They are fitted with aluminum thread inserts, making installation quick and easy and hold UL certification, number E84767, recently upgraded from 600V.

Installation Tips

Place a small piece of leather or rubber over the teeth of wrenches or pillars when installing. This will prevent marking or scratches of the surface when the insulator is gripped. You’ll have a perfect cosmetic finish and a securely placed insulator.

Size: 3/8-16 x 3/8

Ceramic/UV/Standoff?: Standoff

Insert Type: Aluminum

Weight: 0.178lb

Height: 1.375"

Diameter: 1.75"

Shape: Round

Part Type: Type 2R

Brand: Mar-Bal

UL Certification: E84767

• Max suggested indoor voltage rating – 1500V
• Height 1⅜”
• Diameter  1¾”
• Internal thread ⅜” - 16 x ⅜”
• Threaded aluminum center insert allowing for easy installation
• Flame and shatter resistant
• UL certified (E84767)
• Brand; Mar-Bal