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Phone: +86 16626708626Description
Product Core Brief
- Model: IC660TBD120
- Brand: GE Fanuc / Emerson
- Series: Genius I/O
- Core Function: Terminal assembly for I/O blocks
- Product Type: Field wiring terminal block
- Key Specs: 32 screw terminals, 0 to 60°C operation
- Condition: New Surplus
Key Technical Specifications
- Terminals: 32 screw-type for field wiring
- Compatible electronics: IC660EBD120 for IC660BBD120 blocks
- Operating temperature: 0°C to 60°C (32°F to 140°F)
- Wiring capacity: Supports 12-24 AWG typical for discrete I/O
- Mounting: Fits standard Genius I/O block enclosure
- Dimensions: Matches 3.56 in (9.05 cm) wide block profile
- Weight: 2 lbs (0.9 kg) approx.
- Isolation rating: Inherits block-to-block 850 V from host
- Vibration tolerance: 5-10 Hz at 0.2 in displacement
- Humidity: 5% to 95% non-condensing
- IC660TBD120
Product Introduction
GE IC660TBD120 is the terminal assembly for Genius I/O blocks like IC660BBD120, handling 32 circuits of field wiring in PLC systems such as Series 90-30. It provides screw connections for inputs/outputs without electronics, pairing with the electronic board for full function.
Installs without rewiring—snap or latch to existing electronics. Field techs swap it during maintenance to fix corroded terminals, keeping downtime under 30 minutes. Confirm match with your block model before ordering.
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No field power at terminals | Loose screw or failed crimp | ✅ High | Tug wires; measure 10-30 VDC across +/− with Fluke 115 | Tighten to 7 in-lbs torque; strip 0.3 in insulation |
| Intermittent opens on circuits | Corrosion or vibration looseness | ✅ High | Visual: green patina on screws; resistance <0.1 Ω end-to-end | Clean with isopropyl; replace if pitting >0.5 mm deep |
| Short between adjacent terminals | Wiring crossed or insulation fail | ✅ Medium | Continuity test neighbor pins (should be open) | Rewire with 600V rated cable; add ferrules on strays |
| Block won’t latch to electronics | Bent pins or debris in slots | ✅ High | Inspect alignment holes; clean with air blast | Straighten with needle-nose; full electronics swap if damaged |
| Overheat at terminal strip | Undersized wire for 0.5 A load | ❌ Low | Temp >60°C under load (IR gun check) | Upgrade to 16 AWG; calc 20% headroom on 32 pts |
Snap photos of wiring before changes. These terminals outlast electronics 3:1—most faults are installer error. Call support with resistance logs if no fix.
Frequently Asked Questions (FAQ)
Does IC660TBD120 work with any Genius block?
No, pairs specifically with IC660BBD120 electronics (12/24 VDC 32-circuit). Check your EBD model—mismatch won’t latch.
New or used condition?
New Surplus: Excess OEM stock, inbound checked for bent pins or plating flaws. No field hours; test-fit verified on rack. Reports available.
How to replace without full block downtime?
Power off rack. Photo wiring, unscrew all 32, swap terminal, rewire per diagram. 45 minutes typical. No bus reprogram needed.
Wire gauge and torque specs?
12-22 AWG solid/stranded; torque screws to 7 in-lbs (0.8 Nm). Over-torque strips threads—use inch-pound driver
❗ Common pitfall on install?
❗ Mixing AC/DC blocks—IC660BBD120 is DC only (10-30 V). Wrong voltage fries outputs in seconds. Verify markings first. I’ve chased ghosts for hours on that swap.
Warranty and shipping?
1-year on defects. In stock, ships today after QC torque test. Lead time zero unless surge demand.
Direct fit for older TBD100?
Yes, drop-in for IC660TBD100/110 upgrades. Same footprint, but newer has better vibration clamps. Pinout identical.
