6ES7953-8LG11-0AA0
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SIMATIC S7 PLC
614 variants · Siemens
Siemens SIMATIC S7 PLC Accessories — Backplanes, Connectors, and Mounting Hardware
The Siemens SIMATIC S7 PLC Accessories series (6ES7 accessories) with over 610 variants encompasses the backplane bus connectors, front connectors, mounting rails, power supply connectors, and labeling accessories for the SIMATIC S7-300, S7-400, S7-1200, and S7-1500 PLC families.
Why Accessories Matter for Panel Build Quality
Front connectors carry all the field wiring connections to the I/O module. Using the correct front connector type (screw terminal vs spring-loaded push-in, 20-pin vs 40-pin) directly affects wiring speed and long-term connection reliability. Spring-loaded push-in terminals reduce wiring time by up to 50% compared to screw terminals and maintain clamping force without periodic re-torquing.
Backplane bus connectors (U-connectors for S7-300, profile bus for S7-1500) carry the high-speed backplane communication between the CPU and I/O modules. A loose or improperly seated bus connector causes intermittent communication faults that are difficult to diagnose — the classic symptom is random module faults that self-clear after power cycle.
Key Accessory Types
| Accessory | Function |
|---|---|
| Front connectors (20/40-pin) | Field wiring termination for I/O modules |
| Bus connectors / U-connectors | Backplane communication between adjacent modules |
| Mounting rails (S7-300 profile rail) | DIN rail with integral grounding for module mounting |
| Shield connection elements | EMC-compliant shield termination for analog and fieldbus cables |
| Labeling strips and sheets | Module and channel identification for panel documentation |
Availability
S7 accessories: broadly stocked at Siemens distributors.
About the SIMATIC S7 PLC
The Siemens SIMATIC S7 PLC series groups 614 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. Variants differ by channels, depth and height, so you can match the exact channels your application requires using the selection guide below. The range mixes active and legacy part numbers, so you can source both current SIMATIC S7 PLC variants and discontinued ones from a single page.
Select a variant by
- Channels
- 20 · 46
- Depth
- 2.1 mm · 67.5 mm · 130 mm
- Height
- 32 mm · 54 mm · 125 mm
- Width
- 24 mm · 26 mm · 80 mm
Variant comparison
| Parameter | 6ES7130-1AA00-8BA0 | 6ES7195-3BE00-0AA0 | 6ES7193-8LA00-0AA0 | 6ES7195-3BH00-0YA0 | 6ES7298-0AA00-0BA0 | 6ES7922-3BF00-5AB0 |
|---|---|---|---|---|---|---|
| Channels | — | — | — | — | — | 20 |
| Depth | — | — | — | — | — | — |
| Height | — | — | — | — | — | — |
| Width | — | — | — | — | — | — |
Request a quote on any SIMATIC S7 PLC part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.
