Vertiv GL42UG2EZ-3048-B-MSS 42U Seismic-Rated Server Rack

Overview

The Vertiv GL42UG2EZ-3048-B-MSS is a 42U open-frame seismic rack from the EZ Seismic series, measuring 30 inches wide by 48.4 inches deep in black finish. If your facility sits in a seismic zone — California, the Pacific Northwest, Japan-adjacent deployments, or any site subject to GR-63-CORE or similar seismic compliance requirements — this rack addresses the structural requirement that standard server racks simply cannot meet. Specifying a seismic-rated enclosure is not optional in those environments; it is a code and insurance issue. The GL42UG2EZ-3048-B-MSS (often searched as GL42UG2EZ 3048 B MSS) is built for exactly that requirement.

For a broader look at the Vertiv rack and power infrastructure catalog, or to compare against other server rack enclosures, use the category links to find adjacent models and accessories.

Key Features

• 42U Capacity: 42 rack units provides space for a fully loaded compute row — dense blade chassis, 1U switches, patch panels, and cable management all fit within a single enclosure. No need to cascade across two racks for a standard server deployment.
• Seismic-Rated Construction (EZ Seismic Series): Designed to withstand seismic events per applicable zone-4 standards. Facilities in earthquake-prone regions that mandate GR-63-CORE Zone 4 compliance, or that carry seismic-sensitive insurance riders, require this certification — a standard rack fails that requirement regardless of brand.
• 30-Inch Width: The 30-inch wide footprint fits standard data-center floor tile grids (600mm/24-inch and 900mm/36-inch aisle configurations) without floor-plan modification. Narrower than a 32-inch wide frame, which matters in tight raised-floor environments with fixed PDU columns.
• 48.4-Inch Depth: At 48.4 inches deep, this rack accommodates full-depth servers (typically 29–32 inches) with adequate front and rear clearance for cable dressing and airflow baffles. Hot-aisle/cold-aisle containment accessories will fit without depth conflicts.
• Black Finish: Matches standard data center aesthetics. Black anodized or powder-coated frames reduce light reflection in low-light server rooms and blend with most PDU and cable management accessories from the Vertiv and third-party ecosystem.
• EZ Assembly Design: The EZ Seismic series name signals tool-reduced or simplified assembly compared to fully welded seismic frames. This reduces install labor — relevant on multi-rack deployments where assembly time compounds quickly.

Integration and Compatibility

The GL42UG2EZ-3048-B-MSS accepts standard EIA-310 19-inch rack-mount equipment. Compatible with Vertiv PDUs, cable management arms, blanking panels, and seismic bracing kits within the EZ Seismic accessory family. Third-party rail kits and 0U vertical PDUs sized for 30-inch wide frames will also fit. Pair with a rack PDU rated for your circuit load and a rack cooling solution appropriate for your heat density. For deployments requiring a full seismic-compliant infrastructure build, review the data center infrastructure category for complementary enclosures, containment, and power accessories.

Frequently Asked Questions

Q: What seismic standard does the GL42UG2EZ-3048-B-MSS meet?

A: The GL42UG2EZ-3048-B-MSS is part of Vertiv's EZ Seismic series, which is designed for seismic-rated deployments. Specific certification details (GR-63-CORE Zone 4 or equivalent) should be confirmed with Vertiv documentation for your compliance requirement — the series name and product category confirm it is a seismic-rated enclosure, not a standard frame.

Q: What is the rack unit capacity of the GL42UG2EZ-3048-B-MSS?

A: The GL42UG2EZ-3048-B-MSS provides 42U of usable rack space, sufficient for a full-density server or network equipment deployment.

Q: What are the external dimensions of this rack?

A: The rack measures 30 inches wide by 48.4 inches deep. Height follows standard 42U EIA-310 dimensions. Confirm floor tile and aisle layout against these dimensions before delivery.

Q: Does this rack ship assembled or require on-site assembly?

A: The EZ Seismic series is designed for simplified assembly. Specific ship configuration (flat-pack vs. partial assembly) is not confirmed in available evidence — verify with the distributor at time of order, particularly for freight logistics planning.

Q: Can standard 19-inch rack-mount equipment be installed in this rack?

A: Yes. The GL42UG2EZ-3048-B-MSS conforms to EIA-310 19-inch rack standards, making it compatible with standard servers, switches, patch panels, PDUs, and other rack-mount equipment.

James Everett

The GL42UG2EZ-3048-B-MSS is the rack to specify when seismic compliance is a hard requirement, not a preference. The 30-inch wide by 48.4-inch deep footprint hits the sweet spot for most raised-floor data center grids — deep enough for full-length 2U servers with proper cable egress, and narrow enough to stay within standard aisle spacing without layout surgery.

Technical Highlights:

• 42U Capacity: Enough vertical space to build a fully populated compute row — blade chassis, top-of-rack switching, and patch panels in one enclosure without overflow to a half-height satellite rack.
• Seismic-Rated Frame: The EZ Seismic series designation means this is not a standard commercial rack retrofitted with bracing — it is purpose-built for seismic zones, which matters when a facility's compliance documentation or insurance underwriting requires zone-specific rack certification.
• 30" x 48.4" Footprint: Fits standard 600mm floor tile grids with room for a vertical PDU on each side. The 48.4-inch depth clears most 2-post rail kits used with hyperscale-class 1U/2U servers without forcing the rails to their maximum extension.

Deployment Considerations:

• Confirm local seismic zone classification before specifying this rack — if your site is Zone 2 or below, a standard rack at lower cost may satisfy the requirement and free budget for other infrastructure.
• The 30-inch width means some wider accessory configurations (dual vertical PDU brackets designed for 32-inch frames) will need adapter kits — verify PDU mounting compatibility before the rack ships.

Best fit: colocation deployments in California, Pacific Northwest, or any facility where the landlord or insurance carrier requires documented seismic-rated enclosures as a condition of tenancy or coverage.