Phoenix TTC-6/TTC-3 Series: Industrial Signal Conditioning & Protection Modules - Selection Guide
Product Overview
The Phoenix TTC-6 (6-channel) and TTC-3 (3-channel) Series encompass compact industrial signal conditioning, protection, and interface modules designed for reliable signal processing in automation systems. Covering core functional variants—including TVSD (Transient Voltage Suppression Diodes), HC (High-Current), and multi-channel (1X2/2X1) configurations—these modules support 12V DC/24V DC control voltages, with terminal options (PT plug-in/UT universal) and functional features (EX explosion-proof, isolation "I", M/F variants). Ideal for sensor/actuator signal conditioning, transient voltage suppression, and hazardous area applications, they feature 35mm DIN rail mounting, robust industrial design, and global compliance to ensure stability in manufacturing and process automation environments.
Model Quick Reference Table
1. TTC-6 2XTVSD Surge Protection Modules
| Model No. |
Product Name |
Key Features |
Application Scenarios |
| 2906808 |
TTC-6-2XTVSD-24DC-PT |
2-channel TVSD, 24V DC, PT terminal |
24V DC transient voltage suppression (tool-free wiring) |
| 2906807 |
TTC-6-2XTVSD-12DC-PT |
2-channel TVSD, 12V DC, PT terminal |
12V DC sensitive electronics surge protection |
2. TTC-6 2X1 Configuration Modules
| Model No. |
Product Name |
Key Features |
Application Scenarios |
| 2906716 |
TTC-6-2X1-M-24DC-UT-I |
2×1 channel, M-variant, 24V DC, UT terminal, isolation |
24V DC signal conditioning with isolation (universal wiring) |
| 2906729 |
TTC-6-2X1-M-24DC-PT-I |
2×1 channel, M-variant, 24V DC, PT terminal, isolation |
24V DC signal conditioning with isolation (tool-free wiring) |
| 2906776 |
TTC-6-2X1-F-M-24DC-PT-I |
2×1 channel, F/M-variant, 24V DC, PT terminal, isolation |
Enhanced 24V DC signal processing (PT terminal) |
| 2906799 |
TTC-6-2X1-24DC-UT |
2×1 channel, 24V DC, UT terminal |
Standard 24V DC signal conditioning (universal wiring) |
| 2906805 |
TTC-6-2X1-24DC-PT |
2×1 channel, 24V DC, PT terminal |
Standard 24V DC signal conditioning (tool-free wiring) |
3. TTC-6 2-HC High-Current Modules
| Model No. |
Product Name |
Key Features |
Application Scenarios |
| 2906719 |
TTC-6-2-HC-M-24DC-UT-I |
2-channel HC, M-variant, 24V DC, UT terminal, isolation |
24V DC high-current signal conditioning (universal wiring) |
| 2906731 |
TTC-6-2-HC-M-24DC-PT-I |
2-channel HC, M-variant, 24V DC, PT terminal, isolation |
24V DC high-current signal conditioning (tool-free wiring) |
| 2908438 |
TTC-6-2-HC-24DC-UT-I |
2-channel HC, 24V DC, UT terminal, isolation |
Standard 24V DC high-current signal processing |
| 2908439 |
TTC-6-2-HC-24DC-PT-I |
2-channel HC, 24V DC, PT terminal, isolation |
Standard 24V DC high-current signal processing (PT terminal) |
| 2906800 |
TTC-6-2-24DC-UT |
2-channel HC, 24V DC, UT terminal |
Basic 24V DC high-current signal conditioning |
| 2906806 |
TTC-6-2-24DC-PT |
2-channel HC, 24V DC, PT terminal |
Basic 24V DC high-current signal conditioning (PT terminal) |
4. TTC-6 1X2 Configuration Modules
| Model No. |
Product Name |
Key Features |
Application Scenarios |
| 2906820 |
TTC-6-1X2-M-EX-24DC-UT-I |
1×2 channel, M-variant, EX 防爆，24V DC, UT terminal, isolation |
Hazardous area 24V DC signal distribution (universal wiring) |
| 2906713 |
TTC-6-1X2-M-24DC-UT-I |
1×2 channel, M-variant, 24V DC, UT terminal, isolation |
24V DC signal distribution with isolation (universal wiring) |
| 2906726 |
TTC-6-1X2-M-24DC-PT-I |
1×2 channel, M-variant, 24V DC, PT terminal, isolation |
24V DC signal distribution with isolation (tool-free wiring) |
| 2906772 |
TTC-6-1X2-F-M-24DC-PT-I |
1×2 channel, F/M-variant, 24V DC, PT terminal, isolation |
Enhanced 24V DC signal distribution (PT terminal) |
| 2906798 |
TTC-6-1X2-24DC-UT |
1×2 channel, 24V DC, UT terminal |
Standard 24V DC signal distribution (universal wiring) |
| 2906804 |
TTC-6-1X2-24DC-PT |
1×2 channel, 24V DC, PT terminal |
Standard 24V DC signal distribution (tool-free wiring) |
5. TTC-3 Series (3-Channel) Modules
| Model No. |
Product Name |
Key Features |
Application Scenarios |
| 2907326 |
TTC-3-2X1-24DC-PT |
3-channel, 2×1 configuration, 24V DC, PT terminal |
Compact 24V DC signal conditioning (3-channel, tool-free wiring) |
| 2907325 |
TTC-3-1X2-24DC-PT |
3-channel, 1×2 configuration, 24V DC, PT terminal |
Compact 24V DC signal distribution (3-channel, tool-free wiring) |
Core Technical Specifications (Universal)
| Parameter |
Value |
Notes |
| Channel Count |
TTC-6: 6-channel; TTC-3: 3-channel |
Model-dependent configuration flexibility |
| Control Voltage |
12V DC, 24V DC (±10% tolerance) |
Industrial standard low-voltage power |
| Terminal Types |
PT (plug-in): Tool-free, 0.14~2.5mm²; UT (universal): Screw, 0.14~2.5mm² |
PT for fast maintenance; UT for secure wiring |
| Protection Functions |
TVSD: Surge suppression (≤10ns response); HC: High-current handling |
Model-dependent protection features |
| Isolation Voltage |
2kV (I-suffixed models) |
Anti-interference for sensitive circuits |
| Operating Temperature |
-25℃~70℃; EX models: -20℃~60℃ |
Harsh environment compatibility |
| Mounting Type |
35mm DIN rail (NS 35/7.5) |
Compact design for space-saving cabinet layout |
| Protection Class |
IP20 (cabinet mounting); EX models: IP20 + ATEX/IECEx |
Dust-proof; EX for Zone 2 hazardous areas |
| Certifications |
CE, UL, CSA; EX models: ATEX/IECEx (Zone 2) |
Global industrial and hazardous area compliance |
| Current Rating |
Standard: ≤3A; HC models: ≤10A |
High-current variants for heavy-load signals |
Application Scenarios & Recommended Models
1. Hazardous Area Signal Distribution (24V DC)
- Requirement: 1×2 channel signal distribution in Zone 2 explosive environments
- Recommended Model: 2906820 (TTC-6-1X2-M-EX-24DC-UT-I)
- Key Reason: EX certification; isolation function; 1×2 configuration for signal distribution
2. 24V DC High-Current Signal Conditioning (Tool-Free Wiring)
- Requirement: 2-channel high-current signal processing with quick maintenance
- Recommended Model: 2906731 (TTC-6-2-HC-M-24DC-PT-I)
- Key Reason: HC high-current handling; PT plug-in terminal; 2kV isolation
3. 12V DC Surge Protection (Compact)
- Requirement: 2-channel transient voltage suppression for 12V DC sensitive electronics
- Recommended Model: 2906807 (TTC-6-2XTVSD-12DC-PT)
- Key Reason: TVSD surge protection (≤10ns response); PT terminal for tool-free installation
4. Compact 3-Channel Signal Distribution (24V DC)
- Requirement: Space-saving 3-channel 1×2 signal distribution (tool-free wiring)
- Recommended Model: 2907325 (TTC-3-1X2-24DC-PT)
- Key Reason: TTC-3 compact design; 1×2 configuration; PT terminal for fast deployment
5. 24V DC Signal Conditioning with Isolation (Universal Wiring)
- Requirement: 2×1 channel signal conditioning with isolation (universal terminal)
- Recommended Model: 2906716 (TTC-6-2X1-M-24DC-UT-I)
- Key Reason: UT universal terminal; 2kV isolation; M-variant for reliable signal processing
Core Advantages
- Dual Channel Configurations: 1X2 (signal distribution) and 2X1 (signal conditioning) fit diverse system needs
- Specialized Functionality: TVSD (surge protection), HC (high-current), and EX (hazardous area) variants
- Flexible Terminal Options: PT (tool-free) for fast maintenance; UT (universal) for secure wiring
- Industrial-Grade Isolation: 2kV isolation (I-suffixed) eliminates cross-interference
- Compact Design: TTC-6 (6-channel) and TTC-3 (3-channel) optimize control cabinet space
- Hazardous Area Compatibility: EX-suffixed models enable Zone 2 deployment
- Global Compliance: CE/UL/CSA/EX certifications support international applications
Installation & Usage Notes
- Voltage Matching: Ensure module voltage (12DC/24DC) aligns with system power supply
- EX Model Deployment: Install EX-suffixed models per ATEX/IECEx guidelines (proper grounding, Zone 2 restriction)
- Terminal Selection: Use PT terminals for frequent maintenance; UT terminals for vibration-prone environments
- Current Limitation: Do not exceed HC model current rating (≤10A); use for high-power signals only
- Surge Protection: TVSD models should be installed close to sensitive devices for optimal transient suppression
- Mounting Spacing: Reserve ≥3mm between modules for heat dissipation, especially for HC variants
- Wiring Specifications: Use 0.14~2.5mm² conductors; shielded cables for isolated (I-suffixed) models to reduce EMI
- Maintenance Checks: Regularly inspect module connections; replace TVSD modules after surge events
