Reliance

Overview

Reliance Controls Corporation, based in Racine, Wisconsin, is a specialized manufacturer of portable power transfer equipment—best known for manual transfer switches (Pro/Tran family), generator-ready load centers, and a broad range of power inlet boxes and connector kits used for cord‑connected generator installations. The company traces its roots to early 20th‑century lighting control products and today focuses on transfer and inlet solutions designed for residential and light commercial generator applications.

What Reliance is known for

Reliance’s most recognizable product families include the Pro/Tran manual transfer switches (load-side transfer switches for selective circuit transfer), Panel/Link generator-ready panels/transfer kits, and the PB/PBN series of outdoor power inlet boxes. The PB series is a powder‑coated steel (metal) NEMA 3R inlet box line; the PBN series offers a high‑impact ABS (non‑metallic) alternative with the same outdoor rating. Models are offered in common amperages (15A, 20A, 30A, 50A) and configurations (NEMA/L‑style and manufacturer connector codes) to match generator cords and transfer panel inputs.

Main product categories and technologies

• Manual transfer switches (Pro/Tran / Pro/Tran2): loadside transfer switches that allow manual selection of generator power to selected circuits. These are designed for cord‑connected portable generators and are commonly UL‑listed for transfer applications.
• Power inlet boxes (PB / PBN / PK series): raintight NEMA 3R inlet boxes in metal and non‑metallic enclosures; slide‑out trays and combination knockouts for simplified wiring and mounting.
• Connector and inlet kits: flanged inlets and mating plug assemblies identified by configuration codes (examples: CS6375, CS6377, 14‑50, L14‑30) so buyers can match generator cords and receptacles.

Common applications

Reliance equipment is used widely in residential and light commercial settings for planned portable generator integration: emergency home backup, contractor installations for temporary power, small business continuity, and maintenance/OEM retrofit projects where a portable generator must feed selected building circuits safely. Typical users include licensed electricians, electrical contractors, facility managers, and OEMs designing generator‑ready panels.

How to identify Reliance models and critical specs (procurement checklist)

• Model family prefix: PB = metal inlet boxes; PBN = non‑metallic (ABS) inlet boxes. Model numbers include the amp rating (for example PB50 or PBN50 = 50A).
• Configuration code: confirm the inlet configuration code printed in specifications (examples: CS6375, CS6377, 14‑50, L14‑30). This determines plug/receptacle compatibility with generator cords.
• Rating and enclosure: NEMA 3R outdoor rating and listed voltage/amperage (for example 50A @ 125/250VAC).
• Mechanical details: physical dimensions, knockout and mounting patterns, and torque specifications for terminal hardware (installation manuals include torque values and wiring guidance).
• UPC/part numbers: use manufacturer part numbers and UPCs in spec sheets to avoid confusion between near‑identical SKUs.

Sourcing and replacement guidance

When replacing or specifying a power inlet box or transfer switch, match amperage, inlet configuration (CS or NEMA code), NEMA rating, and the physical mounting style. If matching to an existing generator cord, verify the plug code on the cord and confirm the inlet’s configuration code in the Reliance spec sheet. Installation manuals commonly state that inlet boxes feeding a structure must be used in conjunction with a transfer switch and that installation should be performed by a qualified electrician.

How Safsale helps procurement buyers

Safsale product pages consolidate the information buyers need to make a correct purchase decision: clear model and SKU labeling, multiple product images (showing closed and open views plus terminal/tray detail), downloadable PDFs (spec sheets and installation manuals), part/UPC cross references, and user Q&A or review sections. For Reliance listings Safsale emphasizes the configuration code and amperage in the product title and spec block, surfaces images of the inlet face and interior wiring tray, and provides the manufacturer installation instructions so procurement teams can verify terminal access, mounting requirements, and torque values before ordering.

Practical tips for buyers and contractors

• Verify the connector code (CS6375, 14‑50, L14‑30, etc.) rather than relying on a generic “50A” label—mating connectors are not always interchangeable.
• Check installation manuals for terminal torque and wiring recommendations; proper torque preserves reliable connections and reduces heat risk.
• Confirm the inlet’s NEMA and listing claims and ensure the chosen inlet is permitted by local code for the intended use. When the inlet will feed building wiring, a listed transfer switch is required and must be installed per code.
• For retrofit or OEM procurement, include the inlet’s part number, UPC, and the manufacturer installation sheet with the purchase order to prevent mismatched parts.

Summary for procurement

Reliance Controls offers a focused portfolio of transfer switches and inlet equipment that covers the common cord‑connected generator use cases. For buyers and contractors, the critical identification elements are the PB vs PBN family, amperage, and the inlet configuration code; Safsale makes those attributes prominent and supplies images, manuals and spec PDFs so procurement can confirm fit, code compliance and installation needs before purchasing.