Insulated In-Line Splice 6 AWG–350 MCM | Polaris ISR-350 Equivalent
Shipping calculated at checkout
SKU: 210-61003
35 in stock
Open here
Insulated electrical multi-tap connector (Polaris-type). This insulated in-line splice accepts 6 AWG–350 MCM conductors with insulated in-line splice/reducer — join or reduce conductors end-to-end. Dual-rated AL9CU tin-plated aluminum body, UV-resistant insulated housing, 600V, 90°C, UL 486B listed. Set-screw termination for copper or aluminum conductors — panels, gutters, wireways, solar combiners, and service taps. Direct cross-reference for ISR-350 and other major brands below.
FREQUENTLY ASKED QUESTIONS
What wire sizes does this connector accept?
It accepts 6 AWG–350 MCM copper or aluminum conductors (dual-rated AL9CU).
Is this a direct replacement for ISR-350?
Yes — same conductor range, port count, and entry style as ISR-350, with 600V/90°C rating and UL 486B listing. See the full cross-reference table on this page.
What torque and installation method does it use?
Set-screw (hex) termination. Strip to the barrel depth, insert fully, and torque per the marking on the connector body. No special tooling or dies required.
TECHNICAL RESOURCES
Installation Guide — torque, strip length & NEC 110.14
Selection Guide — ports, entry style & conductor range
Applications — service taps, gutters, solar & AL/CU transitions
Specifications
| Part Number | 210-61003 |
| Category | Electrical connector |
| Weight | 1.0 lb |
| HS Code | 8536.90.4000 |
Why Pros Buy Direct from Conversions Tech
Engineered in the USA. Our U.S.-based engineering team designs and specifies our core product lines, and every product we carry — designed in-house or built to our exact specifications by certified partner factories — is quality-verified before it ships. UL/CSA listed where required, NEC compliant.
Cross-reference savings. Direct equivalents to Burndy, Hubbell, and other OEM part numbers at up to 30% less — same specs, same certifications, without the big-brand markup.
Real technical support. Need a torque spec, die reference, or an OEM quote? You’ll speak directly with the Conversions Tech engineering desk — not a script reader — for instant answers, custom kitting, and private-label options.
Fast US fulfillment. Orders in by 2PM ET ship same day from our US warehouse, nationwide ground and expedited.
