Mersen Open-Style Power Distribution Block 1000V 250A/310A 3-Pole UL 1953 Certified

Mersen Open-Style Power Distribution Block 1000V 250A/310A 3-Pole UL 1953 Certified

Professional Power Distribution with UL 1953 Certification & High Current Capacity

The Mersen Open-Style Power Distribution Block delivers reliable electrical distribution with 1000V AC/DC rating and dual amperage capacity of 250A for aluminum conductors and 310A for copper conductors. This UL 1953 certified 3-pole distribution block features tin-plated aluminum connectors and glass filled polycarbonate insulation for professional electrical installations requiring robust power distribution capabilities.

Professional Features & Benefits

• Dual Amperage Rating: 250A aluminum/310A copper capacity provides flexibility for different conductor types and installation requirements
• 1000V AC/DC Rating: High voltage capability supports demanding electrical distribution applications with reliable performance
• UL 1953 Certification: Meets rigorous safety standards for professional electrical installations and code compliance
• Tin-plated Aluminum Connectors: Corrosion-resistant connections ensure long-term reliability and optimal electrical conductivity
• Glass Filled Polycarbonate Body: Superior insulating material provides excellent electrical isolation and mechanical durability
• Multiple Wire Range Support: Primary connections accommodate 350-#6 AWG while secondary supports #10-#14 AWG for versatile wiring configurations
• 100 kA Short Circuit Rating: High fault current capability with appropriate fuse protection ensures safe operation under extreme conditions

Technical Specifications

• Ac Or Dc: AC/DC
• Ampere Rating Al: 250 A
• Ampere Rating Cu: 310 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: 8-32 (.164) x .25
• Hole Diameter Primary: 0.75 in
• Hole Diameter Secondary: 0.14 in
• Installation Mounting: Direct Screw Mount
• Number Of Openings Per Pole Primary: 1
• Number Of Openings Per Pole Secondary: 15
• Number Of Poles: 3-Pole
• Product Height: 3.25 in
• Product Length: 3.08 in
• Product Weight: 1.6 lb
• Product Width: 5.28 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 400A Fuse
• Short Circuit Rating Class L: 100 kA with 400A Fuse
• Short Circuit Rating Class Rk1: 100 kA with 200A Fuse
• Short Circuit Rating Class Rk5: 100 kA with 100A Fuse
• Short Circuit Rating Class T: 100 kA with 400A Fuse
• Short Circuit Rating Standalone: 10 kA
• Torque Rating Primary: 350-#6 275
• Torque Rating Secondary: #10-#14 15
• Wire Range Primary: 350-#6
• Wire Range Secondary: #10-#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 Distribution
• Data Center Power Infrastructure
• Healthcare Facility Electrical Systems
• Educational Institution Power Distribution
• Multi-Tenant Building Electrical Systems

Why Choose Mersen Quality?

Mersen power distribution blocks combine UL 1953 certification with RoHS compliance and robust construction materials including glass filled polycarbonate insulation and tin-plated aluminum connectors. The comprehensive short circuit ratings across multiple fuse classes and dual amperage capacity for aluminum and copper conductors demonstrate Mersen's commitment to professional-grade electrical distribution solutions.