Eaton Meter Stack Three-Phase ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$2,631.06
$2,354.83

Eaton Meter Stack Three-Phase Commercial 225A Socket 1200A Bus Aluminum 7-Jaw 2-Socket Lever Bypass 208Y/120V

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Model: 37MM220R12

In Stock (leaves warehouse same day if ordered before 3pm ET)

$2,631.06
$2,354.83
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Eaton 37MM Three-Phase Commercial Meter Stack Module

Professional Electrical Metering and Power Distribution Solution

The Eaton 37MM Three-Phase Commercial Meter Stack Module delivers exceptional electrical power metering and distribution performance for commercial and industrial applications. This 225A socket capacity meter stack with 1200A aluminum bus provides reliable power distribution and metering designed for professional electricians, electrical contractors, and facility managers, offering the proven reliability and advanced technology that professionals trust from the global leader in intelligent power management.

Professional Features & Benefits

Advanced Metering Performance

  • 225A Socket Capacity - High-amperage metering capability for demanding commercial electrical applications with reliable power measurement
  • 1200A Aluminum Bus Rating - Heavy-duty bus construction provides excellent conductivity and thermal management for high-current distribution
  • Three-Phase Configuration - Complete three-phase power metering with three-in, three-out design for balanced electrical distribution
  • 7-Jaw Socket Design - Professional-grade socket configuration ensures secure meter connection and accurate power measurement

Commercial Installation Features

  • Lever Bypass Operation - Convenient lever bypass mechanism allows safe meter maintenance without power interruption
  • Factory A-B Phase Balance - Pre-configured phase balance ensures optimal electrical distribution and reduces installation time
  • Ringless Security Design - Enhanced security features protect against unauthorized access while maintaining professional appearance

Technical Specifications

Socket Amperage: 225A, Bus Rating: 1200A Aluminum, Voltage: 208Y/120V, Configuration: Three-Phase, Socket Design: 7-Jaw with 2 Sockets, Bypass: Lever Operation, Phase Balance: Factory A-B Balance, Security: Ringless Design, Dimensions: 52.63" H x 18.25" W x 8.75" D, Weight: 98 lbs, Certifications: UL Listed, Utility Approvals: Indiana Michigan Power (IMP) (AEP East)

Installation & Usage

  1. Verify proper electrical clearances and mounting surface capacity for 98-pound unit installation
  2. Connect incoming three-phase power to designated input terminals following NEC requirements
  3. Install utility meters in 7-jaw sockets ensuring proper seating and electrical contact
  4. Connect outgoing circuits to three-phase output terminals maintaining phase sequence
  5. Test lever bypass operation to ensure proper meter maintenance functionality
  6. Verify phase balance and electrical connections before energizing the system

Professional Applications

Ideal for:

  • Commercial Buildings - Office complexes, retail centers, and commercial facilities requiring high-capacity metering
  • Industrial Facilities - Manufacturing plants and industrial complexes with heavy electrical loads
  • Multi-Tenant Buildings - Apartment complexes and commercial buildings with multiple electrical services
  • Utility Metering Applications - Primary metering installations for utility companies and electrical service providers
  • Electrical Service Entrances - Main electrical service installations requiring professional metering capabilities
  • Power Distribution Centers - Centralized electrical distribution systems with metering requirements
  • Commercial Electrical Panels - Integration with commercial electrical distribution systems
  • Facility Management Systems - Buildings requiring accurate power monitoring and electrical load management

Commercial Metering Advantage

The 37MM series meter stack combines Eaton's advanced metering technology with robust commercial-grade construction, featuring aluminum bus design for superior conductivity, lever bypass operation for safe maintenance, and factory phase balance for optimal electrical performance in demanding commercial applications.

Why Choose Eaton Quality?

Eaton's century-plus experience in electrical power management innovation, commitment to electrical safety and reliability, UL listings and utility approvals, and trusted performance for electricians, electrical contractors, and facility professionals worldwide make Eaton the preferred choice for commercial metering and power distribution solutions.

Manufacturer Resources

Product Specs

Certifications:
UL Listed
Product Height:
52.63 in
Product Length Depth:
8.75 in
Product Weight:
98 lb
Product Width:
18.25 in
Utility Approvals:
IN : Indiana Michigan Power (IMP) (AEP East)
Product Type:
Meter Stack
Product Subgroup:
Meter Stack
Product Group:
Electrical
Department:
Electrical

Eaton 37MM220R12 – Frequently Asked Questions

1) What is this Eaton meter stack module designed for?
This 37mm three-phase commercial meter stack handles 225A metering with 1200A lever bypass capability. Features seven jaws in 2-socket configuration for three-in, three-out wiring. Built for 208Y/120V three-phase commercial applications.
2) What does the aluminum bus construction offer?
Aluminum bus provides excellent conductivity with lighter weight than copper. Resists corrosion in most environments. Standard for commercial meter stack applications. Verify local utility requirements for bus material specifications.
3) How does the 1200A lever bypass function?
Lever bypass allows utility or electrician to disconnect meter while maintaining power flow. 1200A rating handles full load capacity. Operates manually for maintenance or emergency situations. Follow utility protocols for bypass operation.
4) What does factory A-B phase balance mean?
Factory phase balance ensures equal load distribution between A and B phases in three-phase system. Reduces neutral current and improves system efficiency. Pre-configured at manufacturing for optimal electrical performance.
5) Why is this unit ringless security design?
Ringless design eliminates traditional meter ring requirement. Provides tamper-resistant security through integrated locking mechanisms. Reduces installation complexity while maintaining utility access control standards.
6) What are the socket specifications?
Features 225A sockets rated for 208Y/120V three-phase. Two-socket configuration with seven-jaw design. Accepts standard three-phase commercial meters. Verify meter compatibility with utility requirements.
7) Does this meet NEC requirements?
Eaton meter stacks typically meet NEC requirements for commercial installations. Verify current codes for specific jurisdiction. Check local amendments and utility standards. Always coordinate with AHJ for final approval.
8) What installation considerations apply?
Requires concrete pad or suitable mounting surface. Check manufacturer template for exact dimensions and clearances. Coordinate with utility for meter installation sequence. Verify grounding and bonding requirements per local codes.
9) How do you maintain this equipment?
Inspect connections annually for tightness and corrosion. Check bypass mechanism operation. Keep meter compartments clean and dry. Follow utility maintenance schedules. Use qualified electricians for service work.
10) What are typical field conditions for this unit?
Designed for outdoor commercial installations. Handles normal weather exposure with proper installation. Verify temperature ratings for extreme climates. Consider additional protection in coastal or industrial environments.
11) Are there related Eaton models available?
Eaton offers various meter stack configurations and amperages. Check different socket arrangements and voltage ratings. Consider single-phase or different three-phase options. Browse Eaton products for alternatives.
How fast can I get the Eaton 37MM220R12 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Eaton 37MM220R12 come with a warranty?
Absolutely. The Eaton 37MM220R12 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Eaton 37MM220R12?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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