DSTJG1-1 Drawer Mechanism
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DSTJG1-1 Drawer Mechanism
Four‑position drawout mechanism with double worm gear – 50% less operating force
DSTJG1-1 Series Drawer (racking) mechanism designed for low voltage drawout switchgear, especially for high‑current drawer units that require large operating torque. The mechanism features a double worm gear structure made of high‑strength, wear‑resistant engineering plastic, reducing operating force by more than 50% compared to conventional mechanisms.
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Product Details
- Double worm gear structure – Smooth, low‑effort operation; ideal for large‑current drawers
- 50% labor saving – Significantly reduces operator fatigue
- Four positions – Draw‑out, disconnect (isolate), test, and connect
- 48 mm pushing travel – Standardized travel distance
- Text and color code position indication – Clear visual display for each position
- Audible position feedback – Distinct sound prompt at each working position
- Test position function – Auxiliary circuit connected, main switch can be tested (open/close)
- Mechanical interlock – When the rotary switch handle is closed, the mechanism is locked at any working position (draw‑out, test, connect)
- Pushing and working position interlock – Prevents incorrect operation
- Limit guide rail (optional) – For large‑capacity drawers; prevents deformation of the mechanism mounting plate
| Parameter | Value |
| Operation type | Hand‑rotary (racking) |
| Structure | Double worm gear (engineering plastic) |
| Labor saving | >50% compared to conventional mechanisms |
| Number of positions | 4 (draw‑out / disconnect / test / connect) |
| Pushing travel | 48 mm |
| Position indication | Text + color code + audible sound |
| Test position | Secondary connected, primary disconnected |
| Mechanical interlock | Yes (handle closed = mechanism locked) |
| Optional accessory | Limit guide rail for large‑capacity drawers |
 |  |
| Position | Primary Circuit | Secondary Circuit | Drawer Status | Main Switch |
| Draw‑out | Disconnected | Disconnected | Can be pushed in / pulled out | Cannot close |
| Disconnect (Isolate) | Disconnected | Disconnected | Cannot move | Cannot close |
| Test | Disconnected | Connected | Locked (cannot move) | Can be tested (open/close) |
| Connect | Connected | Connected | Locked (cannot move) | Can close |
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