MTL Surge Protection Safeguards electronic process transmitters MTL TP48 range

MTL Surge Protection Safeguards electronic process transmitters MTL TP48 range

MTL Surge Protection Safeguards electronic process transmitters MTL TP48 range

MTL Surge Protection Safeguards electronic process transmitters MTL TP48 range

Description

•Protects 2, 3 and 4 wire transmitters

•Easy and direct mounting — screws into spare conduit entry

•Intrinsically safe and flameproof to CENELEC standards

•Parallel connection avoids introduction of any resistance into loop

•ATEX approved

MTL Surge Protection Safeguards electronic process transmitters MTL TP48 range

Specification

Maximum surge current 20kA peak current (8/20µs waveform)

Leakage current

Less than 10µA at max. working voltage

Working voltage

35V dc maximum

Bandwidth

1MHz

Resistance

No resistance introduced into loop

Ambient temperature limits

-40°C to +85°C

(-40°F to +185°F) (working)

-40°C to +85°C

(-40°F to +185°F) (storage)

Humidity

5% to 95% RH (non-condensing)

Electrical connections

TP48

3flying leads (line1, line 2 & earth) TP48 3 Wire

4flying leads (+ve, -ve, signal & earth)

TP48 4 Wire

5flying leads (+ve, -ve, signal +ve, signal -ve, earth)

Wire size: 32/0.2 (1.0mm2, 18 AWG) Lead length: 250mm (minimum)

Casing

316 stainless steel suitable for harsh environments

Threads

TP48-3-N & TP48-4-N - 1/2” NPT TP48-3-I & TP48-4-1 - 20mm ISO ) (M20 x 1.5)

TP48-3-G & TP48-4-G - G 1/2” (BSP 1/2”)

Weight

175g. (6.2oz.)

EMC compliance

To Generic Immunity Standards

BS EN 61326-1:2013 for industrial environments

Hazardous Area

Ex ia IIC T4, Ceq=O, Leq=0; the unit can be connected without further certification into any intrinsically safe loop with open circuit voltage <60V and

input power <1.2W.

Ex d IIC T4; the unit is apparatus approved to flameproof (explosion- proof) standards, and can be fitted into a similarly approved housing.

Electrical Safety

To BS EN 61643-21:2001 for surge protection devices

MTL Surge Protection Safeguards electronic process transmitters MTL TP48 range

TP48-N Non-certified SPD- 1/2” NPT thread TP48-N-NDI Certified SPD- 1/2” NPT thread

TP48-I Non-certified SPD- 20mm ISO thread TP48-I-NDI Certified SPD- 20mm ISO thread

TP48-G Non-certified SPD- G 1/2” (BSP 1/2 inch) TP48-G-NDI Certified SPD- G 1/2” (BSP 1/2 inch)

TP48-3-N Non-certified SPD- 1/2” NPT thread TP48-3-N-NDI Certified SPD- 1/2” NPT thread

TP48-3-I Non-certified SPD- 20mm ISO thread TP48-3-I-NDI Certified SPD- 20mm ISO thread

TP48-3-G Non-certified SPD- G 1/2” BSP 1/2 inch  TP48-3-G-NDI Certified SPD- 20mm ISO thread

TP48-4-N Non-certified SPD- 1/2” NPT thread TP48-4-N-NDI Certified SPD- 1/2” NPT thread

TP48-4-I Non-certified SPD- 20mm ISO thread TP48-4-I-NDI Certified SPD- 20mm ISO thread

TP48-4-G Non-certified SPD- G 1/2” BSP 1/2 inch  TP48-4-G-NDI Certified SPD- G 1/2”- BSP 1/2 inch