Mersen Open-Style Power Distribution Block UL 1953 1000V 620A 3-Pole Tin-Plated Aluminum

Mersen Open-Style Power Distribution Block UL 1953 1000V 620A 3-Pole Tin-Plated Aluminum

Professional Power Distribution for High-Current Applications

The Mersen open-style power distribution block delivers reliable power distribution with 620A copper rating and 1000V AC/DC capability in a robust 3-pole configuration. Featuring tin-plated aluminum connectors and glass-filled polycarbonate insulation, this UL 1953 listed distribution block provides professional-grade performance for demanding electrical installations with multiple connection points and flexible wire range accommodation.

Professional Features & Benefits

• 620A Copper Rating: High current capacity supports demanding electrical loads with reliable power distribution performance.
• 1000V AC/DC Rating: Versatile voltage capability accommodates both AC and DC applications up to 1000V for flexible system integration.
• 3-Pole Configuration: Three-pole design provides complete three-phase power distribution with organized connection management.
• Tin-Plated Aluminum Connectors: Corrosion-resistant tin plating ensures long-term connection reliability and reduced maintenance requirements.
• Glass-Filled Polycarbonate Body: High-strength insulating material provides excellent electrical isolation and mechanical durability.
• UL 1953 Listed: Meets rigorous safety standards for power distribution blocks ensuring code compliance and installation confidence.
• 100 kA Short Circuit Rating: High fault current capability with appropriate fusing provides robust system protection.

Technical Specifications

• Ac Or Dc: AC/DC
• Ampere Rating Al: 500 A
• Ampere Rating Cu: 620 A
• Body Insulating Material: Glass Filled Polycarbonate
• Connector Material: Tin-plated Aluminum
• Connector Type Primary: Box
• Connector Type Secondary: Box
• Frequency Hz: 50/60 Hz
• Hex Screw Size Type Primary: 11/16-16 x .88
• Hex Screw Size Type Secondary: 5/16-24 x .38
• Hole Diameter Primary: 0.75 in
• Hole Diameter Secondary: 0.27 in
• Installation Mounting: Direct Screw Mount
• Number Of Openings Per Pole Primary: 2
• Number Of Openings Per Pole Secondary: 12
• Number Of Poles: 3-Pole
• Product Height: 3.55 in
• Product Length: 5.7 in
• Product Weight: 5.4 lb
• Product Width: 7.89 in
• Rated Voltage Ac Ul: 1000 V
• Rated Voltage Dc Ul: 1000 V
• Rohs Compliant: Yes
• Short Circuit Rating Class Cc: 100 kA with 30A Fuse
• Short Circuit Rating Class G: 100 kA with 60A Fuse
• Short Circuit Rating Class J: 100 kA with 600A Fuse
• Short Circuit Rating Class L: 100 kA with 800A Fuse
• Short Circuit Rating Class Rk1: 100 kA with 600A Fuse
• Short Circuit Rating Class Rk5: 100 kA with 600A Fuse
• Short Circuit Rating Class T: 100 kA with 800A Fuse
• Short Circuit Rating Standalone: 10 kA
• Torque Rating Primary: 350-#6 275
• Torque Rating Secondary: #4-#8 40; #10-#14 35
• Wire Range Primary: 350-#6
• Wire Range Secondary: #4-#14

Installation & Operation

1. Mount the unit in a suitable location with appropriate clearance and access for connections and service.
2. Connect utility and load conductors following applicable guidelines and the manufacturer's instructions.
3. Wire generator or power input according to the provided voltage/phase specifications and compatible capacity.
4. Configure any available load management or control features as supported by the provided specifications.
5. Test automatic transfer or operational functionality and verify proper performance before placing into service.
6. Complete final inspection and follow ongoing maintenance practices appropriate to the product category.

Professional Applications

• Industrial Power Distribution Systems
• Commercial Electrical Panels
• Manufacturing Facility Power Management
• Data Center Power Distribution
• Heavy Equipment Power Feeds
• Multi-Circuit Distribution Applications
• High-Current Branch Circuit Distribution

Why Choose Mersen Quality?

Mersen power distribution blocks combine proven engineering with UL 1953 listing and RoHS compliance for reliable electrical distribution solutions. The robust glass-filled polycarbonate construction and tin-plated aluminum connectors ensure long-term performance in demanding professional applications.