Shenzhen Hengyo Power Technology Co., Limited
| Payment Terms | T/T,Western Union |
| Supply Ability | 500pcs/month |
| Delivery Time | ship out immediately after payment received |
| Packaging Details | original package |
| Condition | original brand new |
| Warranty | one year |
| Series | Eaton Crouse-Hinds series |
| Shipping way | DHL FedEx express |
| Application | Automation Industries, oil, gas, chemical industries |
| Certificate | CE ISO TUV |
| Brand Name | MTL |
| Model Number | TP48-3-I-NDI |
| Place of Origin | India |
| Certification | CE |
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Product Specification
| Payment Terms | T/T,Western Union | Supply Ability | 500pcs/month |
| Delivery Time | ship out immediately after payment received | Packaging Details | original package |
| Condition | original brand new | Warranty | one year |
| Series | Eaton Crouse-Hinds series | Shipping way | DHL FedEx express |
| Application | Automation Industries, oil, gas, chemical industries | Certificate | CE ISO TUV |
| Brand Name | MTL | Model Number | TP48-3-I-NDI |
| Place of Origin | India | Certification | CE |
| High Light | 316 Stainless Steel Surge Arrestor ，TP48 Surge Protector 35V ，TP48-3-I-NDI | ||
The TP48-3-I-NDI is a high-performance surge protection device (SPD) from the Eaton Crouse-Hinds series MTL TP48 range, specifically engineered to safeguard 3-wire field-mounted process transmitters from damaging voltage transients and lightning-induced surges.
Unlike conventional surge protectors that require complex wiring or conduit modifications, the TP48-3-I-NDI installs with unprecedented simplicity — it screws directly into an unused conduit entry of the transmitter, providing robust protection without affecting normal operation. The device resets automatically after each surge event, ensuring continuous, maintenance-free protection.
With ATEX certification for hazardous area installations, the TP48-3-I-NDI is the trusted choice for oil & gas platforms, chemical plants, pharmaceutical facilities, and other explosive atmospheres.
| Code Segment | Meaning |
|---|---|
| TP48 | Series — Surge protection for field-mounted transmitters |
| -3 | 3-wire transmitter configuration |
| -I | ISO thread — 20mm (M20 x 1.5) |
| -NDI | Certified version — ATEX/IECEx approved for hazardous areas |
The "NDI" suffix indicates full hazardous area certification (ATEX/IECEx), while non-NDI versions are for general-purpose applications.
| Parameter | Value |
|---|---|
| Manufacturer | Eaton (Crouse-Hinds series MTL) |
| Series | TP48 Range |
| Configuration | 3-wire |
| Max. Working Voltage | 48V DC |
| Max. Surge Current (8/20 µs) | 20kA (peak) |
| Peak Voltage Rating | 10kV |
| Leakage Current | <10µA at max. working voltage |
| Bandwidth | 1MHz |
| Series Resistance | 0Ω — no resistance introduced into loop |
| Protection Technology | Hybrid — gas discharge tube + solid-state electronics |
| Enclosure Material | 316 Stainless Steel |
| Thread Type | 20mm ISO (M20 x 1.5) |
| Electrical Connections | Flying leads (4 leads: +ve, -ve, signal, earth) |
| Wire Size | 32/0.2 (1.0mm², 18 AWG) |
| Lead Length | 250mm (minimum) |
| Operating Temperature | -40°C to +85°C |
| Storage Temperature | -40°C to +85°C |
| Weight | Approx. 175g (6.2oz.) |
| Certifications | ATEX, IECEx, FM, CSA (hazardous area approved) |
The TP48-3-I-NDI is specifically designed to protect critical process instrumentation in demanding environments:
Suitable for protecting 3-wire transmitters measuring pressure, temperature, level, flow, and pH.
Unmatched Installation Simplicity — No electrician required for complex rewiring. Simply screw the TP48-3-I-NDI into the transmitter's unused conduit entry, and the protection is active.
Superior Protection vs. Built-in Options — Many transmitter manufacturers offer basic transient protection, but the TP48 series provides 20kA surge capacity — typically 10x higher than built-in options — at a fraction of the cost.
Certified for the Toughest Environments — The "NDI" certification ensures compliance with global hazardous area standards (ATEX, IECEx), allowing use in Zone 0, Zone 1, and Zone 2 classified areas.
Zero Signal Interference — The parallel connection design introduces no series resistance into the 4-20mA loop, preserving measurement accuracy and HART communication.
| Model | Wires | Thread | Certification | Best For |
|---|---|---|---|---|
| TP48-3-I-NDI | 3-wire | 20mm ISO | Certified (ATEX) | Hazardous areas, metric thread transmitters |
| TP48-3-N-NDI | 3-wire | 1/2" NPT | Certified (ATEX) | Hazardous areas, NPT thread transmitters |
| TP48-3-G-NDI | 3-wire | G 1/2" (BSP) | Certified (ATEX) | Hazardous areas, BSP thread transmitters |
| TP48-3-I | 3-wire | 20mm ISO | Non-certified | General purpose, metric thread |
| TP48-4-I-NDI | 4-wire | 20mm ISO | Certified (ATEX) | 4-wire transmitters in hazardous areas |
| TP48-I-NDI | 2-wire | 20mm ISO | Certified (ATEX) | 2-wire loop-powered transmitters |
| Item | Details |
|---|---|
| Part Number | TP48-3-I-NDI |
| Brand | Eaton Crouse-Hinds series MTL |
| Condition | New, Original, Factory Sealed |
| Minimum Order Quantity | 1 piece |
| Warranty | 10 Years (Eaton "No Fuss" Warranty) |
| Shipping | Immediate dispatch via DHL, FedEx, UPS, TNT |
Contact our sales team for volume pricing, datasheet downloads, or technical application support.
Suitable for use in SIL-rated loops per IEC 61508/61511
Company Details
Business Type:
Distributor/Wholesaler,Exporter,Seller,Manufacturer,Trading Company
Year Established:
2013
Total Annual:
2000000-5000000
Employee Number:
20~50
Ecer Certification：
Verified Supplier
Shenzhen Hengyo Power Technology Co., Limited is your best partner for industrial automation. We provide ideal design and solution for automated industries with products from different international brands like MTL, PEPPERL+FUCHS, Phoenix Contact, Weidmueller, Honeywell, Max, Tamagawa, Delta, Panaso... Shenzhen Hengyo Power Technology Co., Limited is your best partner for industrial automation. We provide ideal design and solution for automated industries with products from different international brands like MTL, PEPPERL+FUCHS, Phoenix Contact, Weidmueller, Honeywell, Max, Tamagawa, Delta, Panaso...
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