MTL SDM modular surge protector.
MTL SDM modular surge protector for data & signal applications
SDM surge protectors are globally certified and deliver the highest 20kA level of protection within a compact 7mm, modular design. Available in a range of voltages (7V, 16V, 32V & 55V) with a current capacity of 700mA and 4A for “high current”, the MTL SDM addresses a wide variety of applications and represents a step forward in surge protection designed for hazardous area process control environments.
MTL SDM Modular Surge Protector for Data & Signal Applications
The MTL SDM modular range from Eaton’s Crouse-Hinds series takes the established SD range to the next level by introducing a replaceable element. While maintaining unrivalled packing density, the modular design enables easy maintenance by allowing surge protection modules to be replaced without disconnecting the loop wiring.
Design features
Maintenance ease | Reliability | Safety |
Slim, modular, space saving design | High-performing 20kA level of protection | ATEX and IECEx certified |
Certifications and compliances
Certifications and compliances
IEC:
ATEX: Ex II 3 G; Ex ec IIC T4 Gc
EU: Ex II 1 G; Ex ia IIC T4 Ga
IECEx: Ex ia IIC T4 Ga
NEC / CEC:
UL 497B Listed
Design features
All the active surge protection components are contained within the pluggable module, allowing quick removal without disconnecting the wiring. Replacement costs are reduced, as only the modular part needs to be changed.
The MTL SDM range offers the same slim-line 7 mm footprint as the MTL SD range, increasing packing density and saving both space and cost, potentially reducing the number of cabinets required.
An optional innovative “make before break” design ensures uninterrupted signal and loop protection during removal or replacement of the surge module. The signal to the DCS shows no interruption, avoiding nuisance alarms.
A diagnostic LED option provides a clear visual indication of a failed module, allowing faults to be identified and rectified immediately.
Additional options include a fuse for extra protection against fault currents and a convenient disconnect method for isolating field circuitry without module removal.
The MTL SDM is backwards compatible with the MTL SD range, enabling easy upgrades during routine maintenance while benefiting from the new features.
Multi-stage hybrid circuit
20 kA maximum surge current
Voltage ratings to suit process I/O applications
Intrinsically safe
ATEX and IECEx certified
10 year warranty
Ordering Information
Model | Nominal Voltage (Un) | Nominal Current (In) | Series Resistance | Max Leakage | Rated Voltage (Uc) | Protection Level (Up) | Residual Voltage | Bandwidth | Special Feature |
|---|---|---|---|---|---|---|---|---|---|
SD07M | 7 / 5 | 0.7 | < 1 | 500 | 7.7 | < 12 | 25 | 220 kHz | Low resistance |
SD16M | 16 / 11 | 0.7 | < 1 | 5 | 17 | < 25 | 35 | 220 kHz | Low resistance |
SD32M | 32 / 22 | 0.7 | < 1 | 5 | 36 | < 45 | 60 | 220 kHz | Low resistance |
SD55M | 55 / 38 | 0.7 | < 1 | 5 | 62 | < 90 | 90 | 220 kHz | Low resistance |
SD32M-HC | 32 / 22 | 4 | < 1 | 5 | 36 | < 80 | < 80 | — | High Current |
Resources
About Eaton MTL Instruments
Eaton is a global power management company and a leading supplier of explosion-proof and hazardous area solutions. Through its Crouse-Hinds / CEAG and MTL Instruments product lines, Eaton provides certified lighting, power distribution, control and intrinsic safety systems for Zone 0, 1, 2, 21 and 22 hazardous environments.
Eaton solutions are widely applied in oil and gas, petrochemical, chemical, pharmaceutical and heavy industrial facilities where safety, reliability and international compliance are essential.
Viet Thang Loi Technology Company Limited is the official authorized distributor in Vietnam for Eaton MTL Instruments and Eaton Crouse-Hinds / CEAG, providing genuine products, technical consulting and after-sales services for explosion-proof and hazardous area projects.
