Eaton 35MM240R1240C99 Commercial Meter Stack - UL Listed
Part Number: 35MM240R1240C99
Quick Summary
Eaton 35MM240R1240C99 Commercial Meter Stack is a plug‑in meter stack for 3‑phase and 1‑phase metering in commercial buildings. Engineers face challenges with outdoor durability, flexible entry/exit configurations, and seamless feeder integration, which this unit addresses through robust construction and adaptable mounting. It carries UL Listed safety certification and a NEMA 3R enclosure rating, enabling reliable outdoor service and compliance with industry standards. By aligning with metering product families and low‑voltage power distribution strategies, this solution delivers predictable installation timelines, reduces field wiring errors, and supports scalable metering configurations for growing facilities. Its 400 A socket, 1200 A bus rating flexibility, and top‑bottom‑back exit options simplify upgrades and service without rewiring.
Product Information
Extended Description
35MM240R1240C99 Eaton: Eaton 35MM commercial meter stack, Plug-in socket, 400A, Cu, Bus:1200A, NEMA 3R, Lever bypass, Depends on selected MCB, 5-jaw, Sockets:2, 3-phase in, 1-phase out, A-B, (2) 200A breaker installed, Ringless, Socket:400A, 120/240 Vac
Product Name
Eaton 35MM commercial meter stack
Catalog Number
35MM240R1240C99
UPC
786689165918
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
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - 35MM240R1240C99
Feature: Plug-in 400A copper socket with 5-jaw connectors and lever bypass. Business impact: enables rapid installation, simplifies maintenance, and reduces field wiring errors. Application: ideal for commercial metering installations requiring reliable 3-phase in, 1-phase out connections and easy bypass. Feature: 1200A bus rating with two installed 200A breakers. Business impact: supports larger feeder configurations, reduces on-site commissioning time, and enables scalable growth. Application: suitable for multi-tenant or campus metering deployments with evolving load profiles. Feature: NEMA 3R enclosure and UL Listed certification. Business impact: outdoor reliability and safety compliance, weather resistance for exterior installations. Application: exterior meter stacks in parking structures, campuses, and service entrances. Feature: Flexible exit options top, bottom, or back. Business impact: installation flexibility reduces structural and ducting constraints, speeding deployment. Application: retrofits and new builds where service feeders have limited access. Feature: Dimensional and weight specs 66.625 in L × 19.375 in W × 8.75 in H and 320 lb. Business impact: precise space planning and robust installation in electrical rooms or external housings. Application: high‑capacity metering in modern facilities. Feature: 120/240 Vac single‑phase and 208Y/120V metering. Business impact: broad compatibility with common utility networks, simplifying integration. Application: commercial properties with mixed voltage metering requirements.
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FAQs
Yes. The 35MM240R1240C99 supports 120/240V single-phase, three-wire metering as well as 208Y/120V configurations. Its plug-in socket design and lever bypass provide straightforward installation and service, reducing wiring errors during commissioning. When integrating with existing utility feeds, confirm feeder routing matches the 400A socket rating and ensure the bus is configured to a 1200A capacity for future expansions.
Key specs include a 400A copper plug-in socket, a 1200A bus rating, and sockets configured for 3-phase in with 1-phase out. The assembly ships with two 200A breakers installed, supporting scalable load management for commercial metering. The unit is UL Listed and designed for durable operation in demanding environments, delivering reliable metering performance across typical commercial networks.
The Eaton 35MM240R1240C99 is well suited for commercial buildings, multi-tenant facilities, and outdoor meter installations that require weather resistance and flexible feeder configurations. Its top, bottom, or back exit options simplify retrofits and new builds, while the NEMA 3R enclosure supports exterior mounting in parking structures, campuses, or service entrances where weather exposure is a concern.
This meter stack is UL Listed, indicating compliance with recognized safety standards for electrical equipment. Its NEMA 3R rating further confirms suitability for outdoor use, providing weather resistance and protection in exterior environments. These certifications help streamline procurement and ensure alignment with typical industrial and commercial electrical codes.
The pre-installed 2x 200A breakers and plug-in socket design reduce field labor and commissioning time, lowering uptime and maintenance costs. Its durable NEMA 3R enclosure and UL Listed safety certification help minimize weather-related service interruptions. Over time, the scalable bus and flexible exit options support facility growth without costly reconfigurations, improving total cost of ownership for metering installations.