> ## Documentation Index
> Fetch the complete documentation index at: https://installerguides.lunarenergy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Wiring Specifications

<img src="https://mintcdn.com/lunarenergy/ur4SEtH7YEWeM2cq/images/bridge/wiring-diagram.png?fit=max&auto=format&n=ur4SEtH7YEWeM2cq&q=85&s=1e90be3f2a0a01d44f6bb3a9097dde7b" alt="Wiring Diagram" width="2153" height="1884" data-path="images/bridge/wiring-diagram.png" />

| Terminal                                                                                                                                       | Wire Gauge                                                                                                                                                                                          | Strip    | Tool                                         | Torque                                                                                                  |
| :--------------------------------------------------------------------------------------------------------------------------------------------- | :-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | :------- | :------------------------------------------- | :------------------------------------------------------------------------------------------------------ |
| **A** (Grid Supply L1/L2)<br />**B** (Non-backup Load L1/L2)<br />**C** (Backup Load L1/L2)<br />**E** (Neutral Lugs)<br />**F** (Ground Lugs) | 6 AWG -250 kcmil                                                                                                                                                                                    | 1 in     | 5/16" hex                                    | 250 in-lbs (28.2 N-m)                                                                                   |
| **G** (Ground Bar)<br />**H** (Neutral Bar)                                                                                                    | 4-14 AWG                                                                                                                                                                                            | 0.312 in | 1/8" hex                                     | 10-14 AWG: 20 in-lbs (2.3 N-m)<br />8 AWG: 25 in-lbs (2.8 N-m)<br />4-6 AWG: 30 in-lbs (3.4 N-m)        |
| **J** (Rogowski Coils)                                                                                                                         | 12-22 AWG, Shielded                                                                                                                                                                                 | 0.4 in   | Toolless                                     | Lever arm                                                                                               |
| **D** (Load Tray)                                                                                                                              | **See breaker.** Compatible with Eaton BRHDK125 and Lunar breaker hold down kit (10-005080) where required                                                                                          |          |                                              | For load tray removal <br />T25 fastener: 44.3 in-lbs (5 N-m)<br />(2x) Hex nuts: 62 in-lbs (7 N-m)     |
| **E** (Neutral Lugs)<br />**F** (Ground Lugs)                                                                                                  | Optional: Replace factory terminal with ILSCO PB2300 2-port terminal. Reuse M6 fastener holding existing terminal lug.                                                                              |          | T25 or T27                                   | 115 in-lbs (13 N-m)                                                                                     |
| **G** (Ground Bar)<br />**H** (Neutral Bar)                                                                                                    | Optional: Install ILSCO NBAS-012-2-A for additional terminations. Use (2x) M5 x 14, Steel, Zn-Ni plated bolt to fasten terminal bar                                                                 |          | T25                                          | 35 in-lbs (4 N-m)                                                                                       |
| **A** (Grid Supply L1/L2)                                                                                                                      | Optional: Install Service Disconnect<br />(1x) Center mounting screw<br />(2x) M6 Side electrical screws<br />Reuse Bridge fasteners or use fasteners provided with Square D QOM2XXXVH main breaker |          | T25 (Lunar)<br />T27 (Lunar)<br />Flat (SQD) | (1x) T25 Center Screw: 30 in-lbs (3.4 N-m)<br /><br />(2x) T27 Side Screws: 75 in-lbs (8.5 N-m) for T27 |
| **I** (Neutral-Ground Bond Strap)                                                                                                              | Optional: Install only with Service Disconnect<br />(2x) M6 screws provided with Bridge                                                                                                             |          | T25 or T27                                   | 115 in-lbs (13 N-m)                                                                                     |

<Note>Use minimum 75ºC rated Cu/Al conductors.</Note>