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Keterangan
Schneider Electric BMXFTB2820 Modicon X80 Terminal Block
Configured for discrete wiring termination in Modicon X80 distributed I/O architectures, the Schneider Electric BMXFTB2820 (base model BMXFTB) provides direct physical execution of signal interconnection for modules utilizing a 28-pin removable interface.
Suffix Breakdown & Model Matrix
Code Segment
Definition
BMX
Modicon X80 Series Product Family
FTB
Removable Spring Terminal Block Accessory
28
28 Connection Terminals
20
Specific variant for 0.34..1 mm2 conductor range
Hardware Specifications
Parameter
Specification
Brand
Schneider Electric
Origin
France
Weight
0.07 kg (83 g incl. packaging)
Dimensions (LxWxH)
110.00 mm x 46.00 mm x 36.00 mm
Operating Temp
0 to 60 degC (Standard IEC 61131-2)
Wire Gauge
1 x 0.34..1 mm2 (22..17 AWG)
Connection Type
Spring clamp, tool-free release
Mounting
Direct plug-in to compatible module front
Backplane Bus Communication Velocity Licensing
The BMXFTB2820 supports the physical layer requirements for high-speed backplane data exchange within the Modicon X80 rack. It facilitates deterministic signal transfer rates up to 100 Mbps on the X-bus architecture. Compatibility is strictly governed by firmware flash versions; using non-compliant terminal blocks may result in bus arbitration errors or reduced I/O scan cycles. Ensure the accessory matches the specific module's hardware catalog revision to maintain protocol timing integrity.
Frequently Asked Questions
Q: Is hot-swapping permitted with this terminal block?
A: No. Power must be removed from the module before removing or inserting the BMXFTB2820 to prevent arcing and damage to the spring contacts.
Q: What is the maximum current load per terminal?
A: The terminal block is rated for signal-level applications. Do not exceed 2 A per terminal point; refer to the specific module datasheet for aggregate current limits.
Q: Does this include the module?
A: No. This is a removable accessory (FTB). The electronic module (e.g., BMXAMI0810) must be ordered separately.
Field Installation Guidelines
Conductor Preparation: Strip wires to 9 mm length. Use ferrules for stranded wires to ensure proper contact with the spring clamp mechanism.
Torque & Engagement: While spring terminals are tool-less, ensure the wire is fully seated until a distinct mechanical click is felt. Tug-test each wire after insertion.
Grounding: Connect shield drains directly to the DIN rail or designated ground bar; do not connect shields to the terminal block signal pins unless specified by the system grounding diagram.
Segregation: Maintain separation between power and signal wiring within the cabinet to minimize electromagnetic interference (EMI).
