6ES7921-3AH20-1AA0
SIMATIC S7-300, Front connector for crimp contacts, without crimp contacts 40 pole, VPE=100 units
Design
The front connector is available in two versions:
The 20-pin front connector comprises:
- 20 crimp contact connections for the wiring
- Strain relief for the cables
- Unlocking button for unlatching the front connector when replacing the module
- Receptacle for coding element attachment; there are two coding elements with attachments on the module. The attachments latch into the front connector when inserted for the first time.
The 40-pin front connector comprises:
- 40 crimp contact connections for the wiring
- Strain relief for the cables
- Locking screw for fixing and detaching the front connector when the module is replaced
- Receptacle for coding element attachment; there is one two coding element with attachment on the module. The attachment latches into the front connector when inserted for the first time.
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