Why Mechanical Interlocks Save Lives
In motor reversing circuits, two contactors must never close simultaneously — doing so creates a phase-to-phase short circuit that destroys equipment and endangers personnel. Eaton DILM mechanical interlocks physically prevent both contactors from pulling in at the same time, providing the highest level of safety beyond just electrical interlocking.
Eaton DILM Mechanical Interlocks — RF Mando B2B Guide 2026
1. Frame B Interlock (XTCEXMLB)
For 7A-15A contactors (DILM7-15). Small motors, fans, pumps:
- XTCEXMLB — Mechanical interlock, frame B
Wholesale: $28/pc. MOQ 50.
2. Frame C Interlock (XTCEXMLC)
For 17A-32A contactors (DILM17-32). Standard industrial motors, conveyors, mixers:
- XTCEXMLC — Mechanical interlock, frame C
Wholesale: $32/pc.
3. Frame D Interlock (XTCEXMLD)
For 40A-72A contactors (DILM40-72). Medium motors, compressors, HVAC:
- XTCEXMLD — Mechanical interlock, frame D
Wholesale: $45/pc.
4. Frame F and G Interlocks (XTCEXMLG, XTCEXMLGB)
For 80A-170A contactors (DILM80-170). Large industrial motors, marine drives:
Wholesale: $85-95/pc.
5. M Frame Interlock (XTCEXMLM)
For 185A-500A contactors (XTCE185H22 thru XTCE500M22). Heavy industrial, mining:
- XTCEXMLM — Mechanical interlock, fits XTCE185H22 thru XTCE500M22
Wholesale: $185/pc.
6. N Frame Interlock (XTCEXMLN)
For 580A-1000A contactors. Power generation, large motor reversing:
- XTCEXMLN — Mechanical interlock, frame N
Wholesale: $280/pc.
7. Base/Bare Interlock (XTCEXML)
Universal mechanical interlock for custom frame assemblies:
- XTCEXML — Mechanical interlock, base frame
Wholesale: $25/pc.
8. Pricing Comparison Table
| Frame | SKU | Compatible Contactors | RF Mando Price |
|---|---|---|---|
| B | XTCEXMLB | DILM7-15 | $28 |
| C | XTCEXMLC | DILM17-32 | $32 |
| D | XTCEXMLD | DILM40-72 | $45 |
| F/G | XTCEXMLG | DILM80-170 | $85 |
| M | XTCEXMLM | XTCE185H22-500M22 | $185 |
| N | XTCEXMLN | XTCE580N22-1000A | $280 |
9. Contact RF Mando
- Email: Joanna@rfmando.com
- WhatsApp/Telegram: +86 189 6031 3731
- Website: https://www.rfmando.com/
All 8 interlock models in stock at RF Mando Xiamen warehouse. UL/CSA/IEC/CE certified. MOQ 50 for small frame, 10 for large frame. Lead time 15 days. Payment: T/T 30/70.