Eaton 16321-3 Power Distribution Block - SCCR 100 kAIC
Part Number: 16321-3
Quick Summary
The Eaton Bussmann series power distribution block is a compact solution for distributing power in electrical panels and industrial control cabinets. Designers often grapple with delivering safe fault-current handling without sacrificing enclosure space or adding complexity. This block delivers a high SCCR of 100 kAIC while maintaining a small footprint, supporting reliable performance in demanding environments. UL Recognized and RoHS compliant, it also carries a 600 Vac / 600 Vdc rating, and a 175 A capacity, giving you confidence in global regulatory alignment and robust operation. Its molded thermoplastic base with tin-plated aluminum connectors provides durability and ease of installation, helping machine builders optimize panel density and reduce wiring errors in real-world applications.
Product Information
Extended Description
16321-3 Eaton: Eaton Bussmann series power distribution block, 600 Vac, 600 Vdc, 175 A, Three-pole, SCCR: 100 kAIC, Black, Molded Thermoplastic Base, Tin-plated aluminum connector
Product Name
Eaton Bussmann series power distribution block
Catalog Number
16321-3
UPC
051712247641
Product Length/Depth
5.5 in
Product Height
3 in
Product Width
4 in
Product Weight
1.312 lb
Warranty
Not Applicable
Compliances
Contact factory RoHS Compliant
Amperage Rating
175A
Short-circuit rating
SCCR: 100 kAIC
Voltage rating
600 Vac, 600 Vdc
Color
Black
Material
Molded thermoplastic base, tin plated aluminum connector
Number Of Poles
Three-pole
Type
Power distribution block
Feature: High current rating and fault protection. Benefit: Enables safe operation under fault conditions with a 100 kAIC SCCR, reducing the risk of damage and downtime in high-energy systems. Application: Industrial control panels and machine centers that handle demanding startup surges. Feature: Three-pole configuration for efficient power distribution. Benefit: Simplifies wiring topology and reduces terminations, improving reliability and ease of maintenance. Application: Three-phase automation systems and panel boards where clear phase separation improves performance. Feature: Broad voltage compatibility. Benefit: Supports both 600 Vac and 600 Vdc, enabling use across AC- and DC-powered control circuits without additional hardware. Application: Mixed-voltage panels in process automation and robotics. Feature: Robust construction material. Benefit: Molded thermoplastic base with tin-plated aluminum connectors offers corrosion resistance and durable connections in harsh environments. Application: Plant floors with exposure to dust, moisture, or chemicals.
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FAQs
The 16321-3 is designed for panel mounting with a compact 5.5 in length, 4 in width, and 3 in height footprint. Its three-pole design and tin-plated aluminum connectors simplify wiring, and the molded thermoplastic base supports reliable mounting in standard electrical enclosures.
Key ratings include 175 A amperage, 600 Vac and 600 Vdc voltage ratings, and SCCR of 100 kAIC. These specs support high-current distribution with strong fault-current protection, enabling safer operation in demanding industrial environments and broader compatibility with both AC and DC systems.
Yes. The product is UL Recognized per Eaton’s documentation and RoHS Compliant, which aligns with global safety and environmental standards. For full compliance details, consult the Eaton datasheets referenced in the product downloads.
Several resources are available: Eaton Specification Sheet for 16321-3, the 16321-3~POWER DIST. BLOCK 15PK data sheet, and a Bussmann series Fuseology multimedia resource. These documents provide installation guidelines, electrical ratings, and mounting details to support procurement and engineering validation.
The block delivers high fault-current safety without expanding panel size, reducing downtime risk and simplifying wiring. Its durable construction and verified compliance streamline procurement and global deployments, while the compact footprint enables higher panel density and faster changeovers in manufacturing lines.