Phoenix PT/PTC Series Fuse Terminal Blocks Selection Guide
Phoenix PT/PTC series fuse terminal blocks integrate fuse protection and terminal connection functions, designed for overcurrent protection in industrial control circuits. They cover wire specifications from 1.5mm² to 16mm², with diverse configurations including single-circuit, twin-circuit, quattro-circuit, and LED indicator types, and support common fuse sizes (5×20mm, 6.3×32mm). These products feature compact structures, clear status indication, and reliable clamping performance, suitable for control cabinets, automation equipment, and power distribution systems.
1. Core Model List (With Product Descriptions)
| Product Code | Product Model | Product Description |
|---|---|---|
| PTC Series Compact Fuse Terminal Blocks | ||
| 3270203 | PTC 4-HESILED 24 (5X20) | 4mm² fuse terminal block, with 24VDC LED status indicator, compatible with 5×20mm fuses; visualizes fuse working status for quick fault diagnosis |
| 3270197 | PTC 4-HESILA 250 (5X20) | 4mm² fuse terminal block, 250VAC rated voltage, compatible with 5×20mm fuses; basic model for low-power control circuit protection |
| 3270200 | PTC 4-HESI (5X20) | 4mm² basic fuse terminal block, no indicator, cost-effective for general 4mm² wire overcurrent protection |
| PT 6 Series Fuse Terminal Blocks (5×20mm/6.3×32mm Fuse Compatible) | ||
| 3211874 | PT 6-HESILED 24 (6,3X32) | 6mm² fuse terminal block, 24VDC LED indicator, compatible with 6.3×32mm large-size fuses; for medium-power circuit protection |
| 3025046 | PT 6-DREHSILED 24 (5X20) | 6mm² fuse terminal block, rotary (DREH) fuse installation design, 24VDC LED indicator, easy fuse replacement without tools |
| 3025044 | PT 6-DREHSILA 250 (5X20) | 6mm² rotary fuse terminal block, 250VAC rated voltage, no indicator; suitable for frequent fuse maintenance scenarios |
| 3212172 | PT 6-FSI/C-LED 24 | 6mm² fuse terminal block with FSI/C signal collection function, 24VDC LED indicator; supports remote monitoring of fuse status |
| 3212166 | PT 6-FSI/C | 6mm² FSI/C signal collection fuse terminal block, no indicator; for intelligent control system overcurrent protection |
| 3211929 | PT 6-TWIN | 6mm² twin-circuit fuse terminal block, integrates two independent 6mm² circuits in one unit; saves cabinet space for dual-circuit parallel wiring |
| 3211498 | PT 6-TWIN-PE | 6mm² twin-circuit fuse terminal block with PE grounding function; enhances electrical safety of dual-signal/power circuits |
| 3212934 | PT 6-QUATTRO | 6mm² quattro-circuit fuse terminal block, four independent 6mm² circuits; high-density integration for multi-channel small-power circuit protection |
| 3212950 | PT 6-QUATTRO-PE | 6mm² quattro-circuit fuse terminal block with PE grounding; suitable for multi-channel control circuit safety protection |
| 3211813 | PT 6 | 6mm² basic single-circuit fuse terminal block; general-purpose for 6mm² wire overcurrent protection |
| 3211819 | PT 6 BU | 6mm² blue (BU) color-coded fuse terminal block; for signal circuit identification in complex control systems |
| PT 10 Series Fuse Terminal Blocks | ||
| 3208746 | PT 10-TWIN | 10mm² twin-circuit fuse terminal block; for dual-circuit medium-power circuit protection (e.g., motor auxiliary circuits) |
| 3208745 | PT 10-TWIN-PE | 10mm² twin-circuit fuse terminal block with PE grounding; enhances safety of medium-power dual-circuit systems |
| 3212131 | PT 10-PE | 10mm² single-circuit fuse terminal block with PE grounding; for grounding circuit overcurrent protection |
| 3062143 | PT 10,3-HESILED 1000V | 10.3mm-spec fuse terminal block, 1000V high-voltage rated, 24VDC LED indicator; for high-voltage control circuit protection |
| 3212120 | PT 10 | 10mm² basic single-circuit fuse terminal block; general-purpose for 10mm² wire overcurrent protection |
| 3212123 | PT 10 BU | 10mm² blue color-coded fuse terminal block; for signal circuit identification in medium-power systems |
| PT 16 Series Fuse Terminal Blocks | ||
| 3208760 | PT 16-TWIN N | 16mm² twin-circuit neutral (N) wire fuse terminal block; dedicated to neutral wire overcurrent protection in high-power AC systems |
| 3212138 | PT 16 N | 16mm² single-circuit neutral wire fuse terminal block; for high-power neutral circuit protection |
| 3212147 | PT 16 N-PE | 16mm² neutral wire fuse terminal block with PE grounding; integrates neutral connection and grounding protection |
| PT 1.5/S Series Small-current Fuse Terminal Blocks | ||
| 3208155 | PT 1,5/S-TWIN | 1.5mm² twin-circuit fuse terminal block; for dual-circuit low-power signal circuit protection (e.g., sensor signal lines) |
| 3208197 | PT 1,5/S-QUATTRO | 1.5mm² quattro-circuit fuse terminal block; high-density integration for multi-channel micro-signal circuit protection |
| 3208139 | PT 1,5/S-PE | 1.5mm² single-circuit fuse terminal block with PE grounding; for low-current grounding circuit protection |
| 3213742 | PT 1,5/S-3PV | 1.5mm² 3-channel photovoltaic (PV) dedicated fuse terminal block; anti-ultraviolet design for outdoor PV system wiring |
| 3213713 | PT 1,5/S-3L | 1.5mm² 3-channel fuse terminal block; for three-phase small-power circuit protection |
| 3210301 | PT 1,5/S-MT | 1.5mm² fuse terminal block with marking (MT) function; easy to label circuit information for maintenance |
| 3208100 | PT 1,5/S | 1.5mm² basic single-circuit fuse terminal block; general-purpose for 1.5mm² micro-signal circuit protection |
| Special-spec PT Series Terminal Blocks | ||
| 3002369 | PT 2X10/9X4 | Dual-spec terminal block compatible with 2×10mm² and 9×4mm wires; for mixed-spec wire connection in control cabinets |
2. Quick Interpretation of Model Naming Rules
| Naming Segment | Meaning | Explanation |
|---|---|---|
| PT/PTC X | Series & Wire Spec | - PTC = Compact fuse terminal block series- PT = Standard fuse terminal block series- X = Compatible wire cross-section (mm²), e.g., 6 = 6mm², 1.5/S = 1.5mm² small-current spec |
| -TWIN/-QUATTRO | Circuit Configuration | - TWIN = Twin-circuit structure (two independent circuits in one unit)- QUATTRO = Four-circuit structure (high-density multi-channel protection) |
| -HESILED/-DREHSILED | Fuse Installation & Indicator | - HESILED = With LED status indicator (visualizes fuse on/off status)- DREHSILED = Rotary fuse installation + LED indicator (tool-free replacement) |
| -PE/-N | Circuit Type | - PE = With protective grounding function (enhances electrical safety)- N = Neutral wire dedicated terminal block (for AC system neutral circuit protection) |
| -(5X20)/(6,3X32) | Fuse Size Compatibility | Specifies compatible fuse dimensions, e.g., 5×20mm = small-size fuse, 6.3×32mm = large-size fuse |
| -3PV/-3L | Special Function | - 3PV = Photovoltaic system dedicated (anti-ultraviolet, high-insulation)- 3L = Three-phase circuit dedicated (for three-phase small-power systems) |
3. Core Advantages of PT/PTC Series Products
- Integrated Protection & ConnectionCombines fuse overcurrent protection and terminal wire connection into one, eliminating the need for separate fuse holders and terminals, saving cabinet space.
- Diverse Configuration FlexibilityCovers single/twin/quattro-circuit structures, supports LED status indication and rotary fuse installation, matching different wiring density and maintenance requirements.
- Scenario-oriented DesignProvides PV-dedicated, three-phase, high-voltage models, adapting to photovoltaic systems, three-phase circuits, and high-voltage control scenarios.
- Clear Color Coding & MarkingBlue color-coded models for signal circuit identification, marking function for easy circuit labeling, improving maintenance efficiency.
4. Product Selection Suggestions
- Select by Wire Cross-section
- For micro-signal circuits (1.5mm²): Choose PT 1.5/S series models (e.g., 3208100, 3208155).
- For low-medium power circuits (6mm²/10mm²): Select PT 6/PT 10 series models (e.g., 3211813, 3212120).
- For high-power circuits (16mm²): Adopt PT 16 series models (e.g., 3212138, 3208760).
- Select by Circuit Density Requirements
- For single-circuit protection: Choose basic single-channel models (e.g., PT 6, PT 10).
- For dual-circuit space-saving wiring: Select TWIN-series models (e.g., PT 6-TWIN, PT 10-TWIN).
- For multi-channel high-density protection: Use QUATTRO-series models (e.g., PT 6-QUATTRO, PT 1.5/S-QUATTRO).
- Select by Function Requirements
- For visual status monitoring: Choose models with -HESILED/-DREHSILED suffix (e.g., 3270203, 3025046).
- For grounding/neutral circuit protection: Select models with -PE/-N suffix (e.g., 3211498, 3212138).
- For photovoltaic system wiring: Use PT 1.5/S-3PV model (3213742).
Phoenix PT/PTC Series Fuse Terminal Blocks Selection Guide
Created on：2026-01-19 08:51
