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320 Amp Meter Socket Circuit Breaker (MSB) from RONK

Meter Socket Circuit Breaker - 320 Amp

Part Number:
MSB320
Item Code:
MSB320

RONK’s 320-amp Meter Socket Circuit Breaker combo (MSB) units are specifically designed for underground installation. These lightweight units offer easy and straightforward installation, making them ideal for use as service equipment (SUSE). They come in a NEMA 3R aluminum enclosure and are available with 4 and 5 jaw lever bypass options.

Features and Benefits:

  • NEMA 3R – lightweight and corrosion resistant aluminum enclosure
  • Factory breaker terminal load lugs
  • Underground entry only
  • Suitable for use as service equipment (SUSE)
  • Separate cover on meter socket section – built to meet the NEC code section 230.62
  • 25K Short Circuit Rating (SCCR)
  • Manufactured in the USA
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Part Number: MSB320LC-UG

Amperage Rating: (2) 200

Breaker: 25k

Bypass Type: Talon (4-Jaw), Lever-Bypass Meter Socket

Load Lug: Factory Breaker Terminal Load Lugs (1 per Phase)

Knockout Pattern:  (2) 2-2.5”, (1) 2.5-3”

Feed Type: Underground Feed Enclosure

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Part Number: MSB320LD-UG

Amperage Rating: (1) 100 & (1) 200

Breaker: 25k

Bypass Type: Talon (4-Jaw), Lever-Bypass Meter Socket

Load Lug: Factory Breaker Terminal Load Lugs (1 per Phase)

Knockout Pattern:  (2) 2-2.5”, (1) 2.5-3”

Feed Type: Underground Feed Enclosure

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Part Number: MSB320LE-UG

Amperage Rating: (2) 200

Breaker: 25k

Bypass Type: Talon (5-Jaw) Lever | 5th at 9 o’clock position

Load Lug: Factory Breaker Terminal Load Lugs (1 per Phase)

Knockout Pattern:  (2) 2-2.5”, (1) 2.5-3”

Feed Type: Underground Feed Enclosure

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Part Number: MSB320LF-UG

Amperage Rating: (1) 100 & (1) 200

Breaker: 25k

Bypass Type: Talon (5-Jaw) Lever | 5th at 9 o’clock position

Load Lug: Factory Breaker Terminal Load Lugs (1 per Phase)

Knockout Pattern:  (2) 2-2.5”, (1) 2.5-3”

Feed Type: Underground Feed Enclosure

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* The CECHA approved unit is our MSB320LE-UG only; add 1 to this item code (Ex: MSB320LE1-UG)

* MEG Utility approved items, add “x4” to item code; Lever Bypass approved only (Ex: MSB320Lx4 (x= C, D, E, F)