Abb TMPR12240RB Meter Stack 400A Ringless 1200A 1-phase

Product Description

The ABB TMPR12240RB is a two-section meter stack assembly combining 400-amp ringless meter sockets with integrated circuit breakers and 1200-amp bussing in a single-phase, 5-terminal configuration. Designed for multi-tenant metering applications, this unit consolidates service entrance equipment into a compact, factory-assembled stack. The integrated breakers and high-capacity buss bar reduce field assembly time and support clean, code-compliant service installations. Electricians and electrical contractors working on residential or light commercial multi-unit builds will find this assembly suited for applications requiring separate metered services from a common service entrance point.

This meter stack is intended for single-phase service entrance installations where two separately metered 400-amp ringless services are required from shared 1200-amp bussing. Typical applications include duplexes, small apartment buildings, and multi-tenant commercial properties where individual tenant metering is required at a central location. The ringless socket design eliminates the need for a meter socket ring, which is a common utility requirement in many service territories.

Key Features

• Two-section stack with one 400-amp ringless meter socket and integrated breaker per section
• 1200-amp main bussing supports high-capacity service entrance loads
• Single-phase configuration with 5-terminal layout
• Ringless socket design meets utility requirements in territories that prohibit ring-type sockets
• Factory-assembled construction reduces field wiring time and supports consistent, code-compliant installation

Compatibility

Designed as an OEM-style meter stack assembly for single-phase multi-section service entrance installations requiring ringless 400-amp metering with integrated breakers and 1200-amp bussing.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local utility requirements. Confirm that utility metering specifications and service territory ringless socket requirements are met before installation. De-energize the service entrance completely and follow lockout/tagout procedures before making any connections. Verify that the enclosure mounting location meets clearance requirements per NEC Article 230 for service entrance equipment.

Technical Specifications

• Number of Sections: 2
• Per-Section Amperage: 400 amps
• Main Bussing Rating: 1200 amps
• Phase Configuration: Single-phase
• Terminal Configuration: 5-terminal
• Socket Type: Ringless
• UPC: 783164400441

Standard Information

• Brand: ABB
• Manufacturer Part Number: TMPR12240RB