Mersen Open-Style Power Distri...
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$185.59
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Mersen Open-Style Power Distribution Block, UL 1953 1000V Tin-Plated Copper

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Model: MPDB66273

In Stock (leaves warehouse same day if ordered before 3pm ET)

$185.59
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Mersen Open-Style Power Distribution Block, UL 1953 1000V Tin-Plated Copper

The Mersen Open-Style Power Distribution Block (PDB) is a Next Generation solution for splicing cables, splitting primary power into secondary circuits, and fulfilling fixed junction tap-off requirements. Built with tin-plated copper connectors and rated 1000V AC/DC, this PDB is UL 1953 approved and meets spacing requirements for feeder and branch circuits under UL508A and the National Electrical Code®. It is rated 155A (CU) across 3 poles, with stud-type connectors on both primary and secondary sides for a secure, code-compliant installation.

Key Features

  • Durable Construction: Tin-plated copper connectors housed in a glass-filled polycarbonate body for corrosion resistance and long-term reliability.
  • Ampere Rating: 155A (CU) rated across 3 poles for robust primary-to-secondary power distribution.
  • Voltage Rating: 1000V AC and 1000V DC (UL), supporting AC or DC applications at 50/60 Hz.
  • Connection Type: Stud-style connectors on both primary and secondary, wire range 1/4-20 x 1-5/16, with 1 opening per pole on each side.
  • Installation: Direct screw mount for straightforward panel and enclosure installation.
  • Short Circuit Ratings: Up to 100 kA across Class CC, RK5, RK1, G, J, L, and T fuse classes, with a 10 kA standalone rating.
  • RoHS Compliant: Meets RoHS requirements for restricted substances.

Certifications & Compliance

  • UL 1953 Approved
  • CSA Approved
  • Meets UL508A Spacing Requirements
  • RoHS Compliant

Technical Specifications

  • Number of Openings per Pole (Primary): 1
  • ROHS Compliant: Yes
  • Number of Openings per Pole (Secondary): 1
  • Ampere Rating (CU): 155 A
  • Number of Poles: 3-Pole
  • Connector Material: Tin-plated Copper
  • Body/Insulating Material: Glass Filled Polycarbonate
  • Packaging: 2 EA

Typical Applications

  • Panelboard and Load Center Wiring
  • Splicing and Splitting Primary Power into Secondary Circuits
  • Fixed Junction Tap-Off Points
  • Feeder and Branch Circuit Distribution
  • Commercial and Industrial Electrical Installations

Why Mersen?

Mersen power distribution blocks combine tin-plated copper connectors, a glass-filled polycarbonate body, and UL 1953/CSA approvals to deliver safe, code-compliant power splicing for demanding electrical systems. With short circuit ratings up to 100 kA across multiple fuse classes and RoHS-compliant construction, this PDB is engineered for dependable, long-term performance in professional installations.

Manufacturer Resources

Product Specs

Short Circuit Rating (Class CC):
100 kA with 30A Fuse
Number of Openings per Pole (Primary):
1
Wire Range (Primary):
1/4-20 x 1-5/16
Torque Rating (Secondary):
stud
ROHS Compliant:
Yes
Short Circuit Rating (Class RK5):
100 kA with 100A Fuse
Frequency (Hz):
50/60 Hz
Rated voltage AC UL:
1000 V
Number of Poles:
3-Pole
Short Circuit Rating (Standalone):
10 kA
Ampere Rating (CU):
155 A
Short Circuit Rating (Class G):
100 kA with 60A Fuse
AC or DC:
AC/DC
Installation Mounting:
Direct Screw Mount
Wire Range (Secondary):
1/4-20 x 1-5/16
Short Circuit Rating (Class J):
100 kA with 400A Fuse
Connector Type (Primary):
Stud
Connector Material:
Tin-plated Copper
Short Circuit Rating (Class L):
100 kA with 400A Fuse
Rated voltage DC UL:
1000 V
Connector Type (Secondary):
Stud
Short Circuit Rating (Class T):
100 kA with 400A Fuse
Short Circuit Rating (Class RK1):
100 kA with 200A Fuse
Torque Rating (Primary):
stud
Number of Openings per Pole (Secondary):
1
Body/Insulating Material:
Glass Filled Polycarbonate
list_batch:
MERSEN-20260825
Department:
Electrical
Product Group:
Wiring Devices
Product Type:
Power Distribution Block

Mersen MPDB66273 – Frequently Asked Questions

How fast can I get the Mersen MPDB66273 delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Mersen MPDB66273 come with a warranty?
Absolutely. The Mersen MPDB66273 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Mersen MPDB66273?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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