Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

RELIANCE Manual Transfer Switch: Single Phase, 125/250V AC, 30 A Current Rating - Manual Transfer Switches
RELIANCEManual Transfer Switches

RELIANCE Manual Transfer Switch: Single Phase, 125/250V AC, 30 A Current Rating

The RELIANCE Manual Transfer Switch: Single Phase (MPN 30310A) is a prewired manual transfer switch rated for 125/250V AC with a 30 A current rating. It includes meters and is designed for single-phase applications.

SKU 3G-OTH-382674

Also listed as: 30310 A · 30310-A

Brand
RELIANCE
Item
Manual Transfer Switch: Single Phase, 125/250V AC, 30 A Current Rating
Category
Manual Transfer Switches
Available to Order
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.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

RELIANCE
Manufacturer Part Number
30310A
Type
Prewired
AC
125/250V
Spaces
0
Includes
Meters
Prewired
Yes
Rated Voltage
125/250V AC
Current Rating
30 A

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

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

Product Description

The RELIANCE Manual Transfer Switch: Single Phase (MPN 30310A) is a prewired manual transfer switch rated for 125/250V AC with a 30 A current rating. It includes meters and is designed for single-phase applications.

Frequently Asked Questions

What is the RELIANCE Manual Transfer Switch 30310A used for?

The RELIANCE Manual Transfer Switch 30310A is used to safely switch a home or small business between utility power and a backup generator. It is designed for single-phase, 125/250V AC systems and includes meters to monitor voltage and load, ensuring reliable power transfer during outages.

What are the specifications of the RELIANCE Manual Transfer Switch 30310A?

The RELIANCE Manual Transfer Switch 30310A is a prewired, single-phase unit rated for 125/250V AC with a 30 A current rating. It includes built-in meters for monitoring and has 0 spaces for additional breakers. The manufacturer part number is 30310A, and it is designed for residential or light commercial backup power applications.

Where to buy the RELIANCE Manual Transfer Switch 30310A worldwide?

You can source the RELIANCE Manual Transfer Switch 30310A through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time; we provide reliable sourcing for this prewired transfer switch.

How to install the RELIANCE Manual Transfer Switch 30310A?

Installation of the RELIANCE Manual Transfer Switch 30310A should be performed by a licensed electrician following local codes. The prewired unit connects between the utility meter and main panel, with a generator inlet. Ensure the generator is off before switching. Always verify voltage (125/250V AC) and current (30 A) ratings match your system.

Used in

Common applications for RELIANCE
Residential backup power — Reliance 30310A manual transfer switch for connecting a portable generator to a home electrical panel.
Outdoor generator hookup — Reliance PBN30 power inlet box with steel enclosure for weather-resistant generator connection.
Load testing — Reliance THP103 appliance load tester for verifying single-phase circuit loads up to 125 V AC.
GFCI outlet verification — Reliance THP102P receptacle tester for checking wiring and GFCI function in commercial buildings.
Generator cord assembly — Reliance PC3020 power cord for linking a transfer switch to an inlet box in a 30 A system.
High-capacity generator inlet — Reliance PBN50 power inlet box for 50 A universal transfer switch connections.

RELIANCE Products

3G Electric supplies RELIANCE manual transfer switches. 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

Compatible alternatives & equivalents

Cross-referenced by specification & description
RELIANCE Generator Power Cord: Transfer Switch Cord, 20 ft Cord Lg, 125/250V AC, 30 A Current Rating (MPN PC3020)
RELIANCE
RELIANCE Generator Power Cord: Transfer Switch Cord, 20 ft Cord Lg, 125/250V AC, 30 A Current Rating (MPN PC3020)
RELIANCE Appliance Load Tester: 125 V Max AC Volt Measured, For Single Phase, Digital (MPN THP103)
RELIANCE
RELIANCE Appliance Load Tester: 125 V Max AC Volt Measured, For Single Phase, Digital (MPN THP103)
GENERAC Transfer Switch Kit: Single Phase, 120/240V AC, 30 A Current Rating, 10 Spaces, Prewired, 1 (MPN 6853)
GENERAC
GENERAC Transfer Switch Kit: Single Phase, 120/240V AC, 30 A Current Rating, 10 Spaces, Prewired, 1 (MPN 6853)
GENERAC Upgradable Manual Transfer Switch: Single Phase, 120/240V AC, 30 A Current Rating, 10 Spaces (MPN 6854)
GENERAC
GENERAC Upgradable Manual Transfer Switch: Single Phase, 120/240V AC, 30 A Current Rating, 10 Spaces (MPN 6854)
RELIANCE Power Inlet Box: 50 A Current Rating, Non-NEMA (CS6375), Universal, 3R, ABS (MPN PBN50)
RELIANCE
RELIANCE Power Inlet Box: 50 A Current Rating, Non-NEMA (CS6375), Universal, 3R, ABS (MPN PBN50)
GENERAC Upgradable Manual Transfer Switch: Single Phase, 120/240V AC, 50 A Current Rating, 16 Spaces (MPN 9854)
GENERAC
GENERAC Upgradable Manual Transfer Switch: Single Phase, 120/240V AC, 50 A Current Rating, 16 Spaces (MPN 9854)

More from RELIANCE

View all RELIANCE parts
RELIANCE Manual Transfer Switch: Single Phase, 125/250V AC, 30 A Current Rating, 0 Spaces, Prewired (MPN 306CRK)
RELIANCE
RELIANCE Manual Transfer Switch: Single Phase, 125/250V AC, 30 A Current Rating, 0 Spaces, Prewired (MPN 306CRK)
RELIANCE Manual Transfer Switch: Single Phase, 125/250V AC, 30 A Current Rating, 0 Spaces, Prewired (MPN 310CRK)
RELIANCE
RELIANCE Manual Transfer Switch: Single Phase, 125/250V AC, 30 A Current Rating, 0 Spaces, Prewired (MPN 310CRK)
RELIANCE Manual Transfer Switch: Single Phase, 125/250V AC, 30 A Current Rating, 0 Spaces, Prewired (MPN 31410CRK)
RELIANCE
RELIANCE Manual Transfer Switch: Single Phase, 125/250V AC, 30 A Current Rating, 0 Spaces, Prewired (MPN 31410CRK)
RELIANCE Manual Transfer Switch: Single Phase, 125/250V AC, 30 A Current Rating, 0 Spaces, Prewired (MPN 31406CRK)
RELIANCE
RELIANCE Manual Transfer Switch: Single Phase, 125/250V AC, 30 A Current Rating, 0 Spaces, Prewired (MPN 31406CRK)
RELIANCE Manual Transfer Switch: Single Phase, 125/250V AC, 30 A Current Rating, 0 Spaces, Prewired (MPN 30216A)
RELIANCE
RELIANCE Manual Transfer Switch: Single Phase, 125/250V AC, 30 A Current Rating, 0 Spaces, Prewired (MPN 30216A)