EXW Singapore — collect or forward from our Singapore office.

3G Electric
KLEIN TOOLS RT390 GFCI & AC Circuit Analyzer, CAT III 135V, Digital Display, 12A - GFCI & AC Circuit Analyzers
KLEIN TOOLSGFCI & AC Circuit Analyzers

KLEIN TOOLS RT390 GFCI & AC Circuit Analyzer, CAT III 135V, Digital Display, 12A

The KLEIN TOOLS AC Circuit Analyzer (model RT390) is a GFCI and AC circuit analyzer with a 5-15P plug. It features a digital display and light, a load current of 12 A, and a CAT III 135V safety rating.

SKU 3G-OTH-171039

Also listed as: RT 390 · RT-390

Brand
KLEIN TOOLS
Item
RT390 GFCI & AC Circuit Analyzer, CAT III 135V, Digital Display, 12A
Part Number
RT390
Category
GFCI & AC Circuit Analyzers
Available to Order
Also known as:RT390KLEIN TOOLS
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
EXW Singapore
Collect or forward from our office
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

KLEIN TOOLS
Manufacturer Part Number
RT390
Type
CAT III 135V, Digital Display/Light, Digital
Load Current
12 A
CAT Safety Rating
CAT III 135V

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

KLEIN TOOLS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The KLEIN TOOLS AC Circuit Analyzer (model RT390) is a GFCI and AC circuit analyzer with a 5-15P plug. It features a digital display and light, a load current of 12 A, and a CAT III 135V safety rating.

Frequently Asked Questions

What is the KLEIN TOOLS RT390 AC Circuit Analyzer used for?

The KLEIN TOOLS RT390 AC Circuit Analyzer tests GFCI and AC circuits for proper wiring and ground faults. It is used by electricians and maintenance technicians to verify safety and functionality in residential and commercial electrical systems.

What are the specifications of the KLEIN TOOLS RT390?

The KLEIN TOOLS RT390 has a 5-15P plug, digital display and light, load current of 12 A, and CAT III 135V safety rating. It is a GFCI and AC circuit analyzer designed for reliable electrical testing.

Where to buy the KLEIN TOOLS RT390 worldwide?

3G Electric supplies the KLEIN TOOLS RT390 AC Circuit Analyzer to customers worldwide. We handle full logistics and customs clearance, ensuring delivery to your location. Contact us for availability and lead time.

How to use the KLEIN TOOLS RT390 for GFCI testing?

Plug the KLEIN TOOLS RT390 into a standard 5-15R outlet. The digital display and light indicate wiring status and GFCI trip condition. Press the test button to verify GFCI function. Always follow manufacturer instructions and safety guidelines.

Used in

Common applications for KLEIN TOOLS
Electrical installation — Klein Tools lineman's pliers (D2000-7, J2000-9NE) for cutting and gripping wire in panel and conduit work.
Data cabling — Klein Tools ratcheting cable cutter (63601) for cleanly cutting data cable up to 2 1/16 in diameter without burrs.
Fence and sign installation — Klein Tools manual post driver (5SDSH) for driving posts and stakes into the ground.
General construction — Klein Tools straight-claw hammer (H80820) for driving and pulling nails in framing and electrical tasks.
Portable lighting — Klein Tools rechargeable flashlight (56074) for illumination in dark work areas, with 1,000 lumens output.
Cable preparation — Klein Tools ratcheting cable cutter (63060) for cutting aluminum electric cable up to 750 kcmil in heavy-duty applications.
Not sure this is the right part? Photo-identify it→

KLEIN TOOLS Products

3G Electric supplies KLEIN TOOLS gfci & ac circuit analyzers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Related products

More from KLEIN TOOLS

View all KLEIN TOOLS parts →

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first