The XH-2 hand-operated push-pull interlocking mechanism is used for unit drawer extensions. The interlocking mechanism features three-position locking, three-position display, switch-closed drawer extension and cabinet interlocking, and auxiliary power supply for test connections. Drawer extension and retraction are driven by the drawer handle (similar to the MNS large interlocking push-pull method; the main switch closing locking lever is locked to the partition, locking the drawer. The drawer can only be pulled out after the main switch is opened and unlocked; the unlocking button on the left handle must be pressed to pull out the drawer). It is recommended for drawers with currents below 250A. For 630A drawers, our company's HJG-8 hand-cranked push-pull mechanism can be used. The HJG-8 interlocking mechanism is easy to operate, fully meets protection requirements, is inexpensive, and highly practical. The structural diagram is provided by our company.
| Model Selection (H) | Standard Square Rod (A) | Non-Standard Square Rod (A) |
| 67 | 8×8 | 10×10 |
| 80 | 8×8 | 10×10 |
| 117 | 10×10 | 8×8 |
