Description
Detailed Parameter Table
| Parameter Name | Parameter Value |
| Product Model | 1TGE120020R0405 |
| Manufacturer | ABB |
| Product Category | Terminal Block for Protection Relays |
| Compatible Series | Relion 650 Series (e.g., RET650) |
| Contact Material | Electroplated Copper Alloy |
| Insulation Material | Flame-Retardant Polyamide (UL94 V0) |
| Voltage Rating | 1000 V AC/DC |
| Current Rating | 16 A continuous |
| Wire Range | 0.2–4 mm² (AWG 24-12) |
| Torque Specifications | 0.5–0.6 N·m |
| Operating Temperature | -40°C to +120°C |
| Safety Standards | IEC 60947, UL 1059 |
| Mounting | DIN Rail (EN 60715) |
| Weight | 0.15 kg |
ABB 1TGE120020R0405
Product Introduction
The ABB 1TGE120020R0405 is a precision-engineered terminal block designed for ABB’s Relion® 650 series protection relays, providing secure and reliable electrical connections in high-voltage applications. As a critical interface component in substation automation systems, this terminal block ensures error-free wiring between protection relays like RET650 and field instruments. The 1TGE120020R0405 features corrosion-resistant electroplated contacts and flame-retardant insulation, meeting stringent utility industry requirements for safety and longevity.
Engineered for seamless integration with ABB’s Relion 650 platform, this terminal block supports flexible wiring configurations for current transformers (CTs), voltage transformers (VTs), and binary signals. Its compact design optimizes panel space while maintaining clear isolation barriers between circuits. The ABB 1TGE120020R0405 serves as the backbone for reliable signal transmission in differential protection, distance protection, and breaker failure schemes.
Core Advantages and Technical Highlights
Superior Contact Integrity:
Gold-plated spring clamps maintain <1 mΩ contact resistance after 100 insertion cycles. Dual-pressure cage clamp design prevents wire slippage under vibration (IEC 60068-2-6 certified).
Safety Compliance:
UL94 V0 insulation withstands 850°C glow-wire tests. Reinforced isolation barriers provide 8 mm creepage distance at 1000 V.
Installation Efficiency:
Tool-less push-in wiring reduces termination time by 50% vs. screw terminals. Transparent housing enables visual wire-seating verification. Color-coded markings simplify phase identification (L1/L2/L3).
Environmental Resilience:
UV-resistant material (ISO 4892-2) for outdoor cabinet use. Withstands salt spray (IEC 60068-2-52) and corrosive gases in switchyards.
Compatibility:
Direct plug-in compatibility with RET650, REX650, and REC650 relays. Test sockets allow measurement without disconnection.
Typical Application Scenarios
In grid substations, the ABB 1TGE120020R0405 terminates CT secondary wiring for RET650 transformer differential protection, ensuring signal integrity for 1% accuracy class measurements. Its 1000 V isolation prevents cross-talk between protection and metering circuits.
Wind farm collector stations use these terminals for REC650 bay control wiring, where vibration resistance prevents loosening in turbine nacelles. The -40°C rating maintains elasticity in Arctic installations.
Industrial plants deploy the 1TGE120020R0405 for busbar protection (REB650), where flame-retardant properties mitigate arc-flash risks. Transparent housings simplify infrared inspections during live maintenance.
Related Model Recommendations
1TGE120010R0300: 10A terminal block for control circuits.
1TGE120020R0406: High-current variant (32A) for power circuits.
RET650: Transformer protection relay for direct integration.
1SAP120600R0200: DIN rail end clamp kit.
1TGE120030R0001: Marking label kit for circuit identification.
1SAP250200R0001: Insulation piercing tool for solid conductors.
REC650: Control relay for bay-level automation.
ABB 1TGE120020R0405
Installation, Commissioning and Maintenance Instructions
Installation Preparation:
Verify DIN rail flatness (±0.5 mm/m). Strip wires to 10 mm length. Clean copper conductors with contact enhancer (ABB 1SAP601000R0001). Required tools: DIN rail mounting tool 1SAP211000R0001, torque-limited screwdriver (0.6 N·m max).
Maintenance Suggestions:
Annually: Check contact resistance (<5 mΩ) using micro-ohmmeter. Re-torque if resistance exceeds 10 mΩ. Inspect for discoloration (indicates overheating). Replace every 15 years or after 50 re-wiring cycles. Never lubricate contacts.
Service and Guarantee Commitment
ABB provides a 10-year warranty for the 1TGE120020R0405, covering material defects and insulation failure. Global support includes:
Free technical documentation (wiring diagrams, CAD models)
Custom labeling services for project-specific identification
48-hour emergency replacement for critical grid projects
All terminals undergo 100% contact resistance testing and 500V Hi-Pot validation before shipment. Extended lifecycle support guarantees availability for 20+ years.
