PSU11-WH Equivalent & Substitute Parts

Part Overview

The PSU11-WH is a 2-circuit barrier block connector manufactured by Eaton - Bussmann Electrical Division, part of the Magnum® PSU series. This component features a 0.625" (15.88mm) pitch with screw termination and is rated for 45A at 600V. The PSU11-WH is classified as obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new design implementations where equivalent functionality is required.

Key Parameters

Parameter	PSU11-WH Value
Manufacturer	Eaton - Bussmann Electrical Division
Category	Terminal Blocks
Terminal Block Type	Barrier Block
Number of Circuits	2
Pitch	0.625" (15.88mm)
Current Rating	45A
Voltage Rating	600V
Top Termination	Screws
Mounting Type	Channel, DIN Rail, Track
Operating Temperature	105°C
Material - Insulation	Thermoplastic
Flammability Rating	UL94 V-2
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the PSU11-WH is determined by the following critical parameters:

Barrier Block Type: Must be barrier block configuration
Number of Circuits: Must be 2 circuits
Pitch: Must be 0.625" (15.88mm) to ensure mechanical compatibility with existing mounting infrastructure
Voltage Rating: Must be rated for 600V minimum
Top Termination: Must use screw termination
Mounting Type: Must support Channel, DIN Rail, and Track mounting
Operating Temperature: Must support 105°C operation
Insulation Material: Must be thermoplastic
Flammability Rating: Must meet UL94 V-2 standard

The PLU11-WH meets all substitution criteria. While it features a higher current rating (70A versus 45A) and an enclosed barrier type (versus 3-wall tri barrier), these represent performance enhancements that do not compromise compatibility. The higher current rating provides additional design margin, and the enclosed barrier type offers improved electrical isolation.

Parameter Comparison

Parameter	PSU11-WH	PLU11-WH
Manufacturer	Eaton - Bussmann Electrical Division	Eaton - Bussmann Electrical Division
Terminal Block Type	Barrier Block	Barrier Block
Number of Circuits	2	2
Number of Wire Entries	4	4
Pitch	0.625" (15.88mm)	0.625" (15.88mm)
Number of Rows	2 (Raised, Staggered)	2 (Raised, Staggered)
Current Rating	45A	70A
Voltage Rating	600V	600V
Top Termination	Screws	Screws
Bottom Termination	Closed	Closed
Barrier Type	3 Wall (Tri)	Enclosed
Features	Side Stacking	Side Stacking
Color	White	White
Mounting Type	Channel, DIN Rail, Track	Channel, DIN Rail, Track
Operating Temperature	105°C	105°C
Material - Insulation	Thermoplastic	Thermoplastic
Flammability Rating	UL94 V-2	UL94 V-2
Product Status	Obsolete	Active

Engineering Selection Recommendations

The PLU11-WH is the direct substitute for the obsolete PSU11-WH. Both components are manufactured by Eaton - Bussmann Electrical Division and share identical mechanical and electrical specifications for all critical parameters. The PLU11-WH is currently in active production status with 1082 units available in inventory, ensuring supply chain continuity.

The PLU11-WH provides enhanced performance characteristics: the 70A current rating exceeds the PSU11-WH specification by 55%, and the enclosed barrier type provides superior electrical isolation compared to the 3-wall tri barrier design. These improvements are fully backward compatible with existing PSU11-WH installations.

Both components carry UL94 V-2 flammability certification and support identical mounting configurations (Channel, DIN Rail, Track). The thermoplastic insulation material and 105°C operating temperature rating are maintained across both parts.

Frequently Asked Questions (FAQ)

Q: Can the PLU11-WH be used as a direct replacement for the PSU11-WH?

A: Yes. The PLU11-WH meets all mechanical and electrical compatibility requirements. Both components feature identical pitch (0.625"), circuit count (2), voltage rating (600V), termination method (screws), and mounting options. The PLU11-WH is fully backward compatible.

Q: What is the difference between the 3-wall tri barrier and enclosed barrier types?

A: The 3-wall tri barrier in the PSU11-WH provides three walls of electrical isolation. The enclosed barrier in the PLU11-WH provides complete enclosure for enhanced electrical isolation. Both designs meet UL94 V-2 flammability requirements and are suitable for 600V applications.

Q: Does the higher current rating of the PLU11-WH affect compatibility?

A: No. The 70A rating of the PLU11-WH exceeds the 45A requirement of the PSU11-WH, providing additional design margin without compromising compatibility. The higher rating does not introduce any mechanical or electrical incompatibilities.

Q: Are there packaging differences between these components?

A: The PSU11-WH packaging information is not specified in available documentation. The PLU11-WH is supplied in bulk packaging. Confirm packaging requirements with your procurement department if specific packaging formats are required.

Q: What is the wire gauge compatibility for the PLU11-WH?

A: The PLU11-WH accepts 4-18 AWG wire. Wire gauge specifications for the PSU11-WH are not provided in available documentation. Verify wire gauge requirements for your application.

Q: Is the PLU11-WH RoHS compliant?

A: Yes. The PLU11-WH carries RoHS compliance certification. RoHS status for the PSU11-WH is not specified in available documentation.

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