Eaton 35MM240R1240C32 Meter Stack - UL Listed
Part Number: 35MM240R1240C32
Quick Summary
Eaton 35MM240R1240C32 Meter Stack is a plug‑in socket meter stack for commercial metering in industrial facilities. This solution consolidates metering with feeder connections, simplifying installation and future maintenance. A common challenge is routing main feeders with flexibility; this unit allows main tenant feeders to exit top, bottom, or back, supporting varied site layouts. The design aligns with UL Listed requirements and uses a rugged NEMA 3R enclosure to withstand outdoor conditions. With 120/240 VAC and 208Y/120V network metering, it offers reliable three‑phase in and single‑phase out operation. By combining compact footprint with scalable amperage and preinstalled breakers, it delivers faster commissioning, reduced field wiring, and lower total cost of ownership for commercial and light‑industrial projects.
Product Information
Extended Description
35MM240R1240C32 Eaton: Eaton 35MM commercial meter stack, Plug-in socket, 400A, Cu, Bus:1200A, Lever, NEMA 3R, Depends on selected MCB, 5-jaw, Sockets:2, 3-phase in, 1-phase out, A-B, (1) 300A and (1) 250A breaker installed, Ringless, Socket:400A, 120/240 Vac
Product Name
Eaton 35MM commercial meter stack
Catalog Number
35MM240R1240C32
UPC
786689166113
Product Length/Depth
66.625 in
Product Height
8.75 in
Product Width
19.375 in
Product Weight
320 lb
Certifications
UL Listed
Catalog Notes
Main tenant feeders can exit top, bottom, or back, If being used in outdoor application and exiting the top, mount Myer type hubs on rainproof cap. 120/240V, single-phase, three-wire systems and 208Y/120V network metering
Type
Plug-in socket
Number of jaws
Five-jaw
Number of sockets
2
Phase
Three-phase in, single-phase out
Amperage Rating
400A
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - 35MM240R1240C32
Feature → Plug-in socket design simplifies field wiring and reduces installation time, enabling quicker commissioning and easier future upgrades. Business Impact → Contractors save labor and minimize field wiring errors, accelerating project timelines and improving margins. Application → Ideal for commercial meters and mid-size industrial feeders where rapid deployment matters. Feature → Five-jaw design with two sockets supports robust metering for three‑phase in, single‑phase out systems. Business Impact → Optimizes space while enabling parallel metering for multi-branch loads, improving energy monitoring accuracy. Application → Data centers, manufacturing floors, and office campuses requiring reliable metering. Feature → NEMA 3R enclosure and UL Listed certification ensure reliable outdoor operation and code compliance. Business Impact → Reduces weather-related downtime and simplifies regulatory audits. Application → Outdoor installations, rooftops, and exposure environments. Feature → Main feeder exits top, bottom, or back for flexible site layouts. Business Impact → Eliminates the need for custom enclosures or rerouting, lowering installation costs. Application → Retrofit projects and new builds with constrained mounting options. Feature → Preinstalled breakers (one 300A and one 250A) and 400A rating with 120/240 VAC operation. Business Impact → Streamlines wiring, reduces on-site labor, and supports scalable metering for expanding loads. Application → Commercial buildings, light industrial facilities, and energy management systems.
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FAQs
Installation begins with confirming the 400A rating and ensuring feed conductors are sized per code. The meter stack ships with two preinstalled breakers (300A and 250A) and is designed for plug‑in sockets, which reduces field wiring. Route main feeders to exit top, bottom, or back as your layout requires, then connect the 120/240V or 208Y/120V networks. Verify UL Listed compliance and perform a final insulation and protective earth check before commissioning.
Core specs include 400A amperage rating, two sockets, five-jaw design, three-phase in and single-phase out, 120/240 VAC operation with 208Y/120V compatibility, a 1200A bus rating, and a UL Listed certification. Enclosure is rated for NEMA 3R environments, supporting outdoor use. The unit ships with one 300A and one 250A breaker installed for immediate service readiness.
Yes. The meter stack uses a NEMA 3R enclosure, which is designed for outdoor and other weather-exposed installations. UL Listed certification further confirms electrical compliance in harsh environments. When used outdoors, ensure rainproof cap compatibility and proper mounting of hubs as required by your site conditions to maintain protection and reliability.
The Eaton 35MM240R1240C32 Meter Stack is UL Listed, indicating conformance with widely adopted electrical safety standards and building codes. This certification supports regulatory compliance for commercial and light-industrial metering applications. While additional regional certifications may apply, UL Listing provides a solid compliance baseline for most North American installations.
Maintenance benefits include simplified diagnostics due to the plug‑in socket design and preinstalled breakers, which reduce on-site wiring time and fault-finding. ROI improves through faster commissioning, fewer field wiring errors, and scalable metering capacity that accommodates load growth without major rework. The rugged NEMA 3R enclosure also minimizes weather-related downtime in outdoor or exposed installations.