MTL TP48-I-NDI Surge Protection Devices TP48 TP48-I-NDI Safe Surge Protectors Arrived




 

 

Features of MTL TP48-I-NDI Surge Protection Devices TP48 TP48-I-NDI Safe Surge Protectors Arrived

 

MTL TP48 range

Safeguards electronic process transmitters against induced surges and transients from field cabling

 

 

• 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

• 10 year product warranty

 

 

 

Description of MTL TP48-I-NDI Surge Protection Devices TP48 TP48-I-NDI Safe Surge Protectors Arrived

 

The TP48 range of surge protection devices uniquely provide a level of protection for 2, 3 and 4 wire field-mounted transmitters that is far in excess of the optional transient protection facilities available from the transmitter manufacturers - without involving any additional wiring,conduit modifications or other expensive extras.

 

The TP48 range protection network consists of high-power, solidstate electronics and a gas-filled discharge tube capable of diverting 20kA impulses. The whole unit is encased in a 316 stainless steel housing, threaded for the common conduit entries used on process transmitters. Versions are available for 1/2” NPT, 20mm ISO, and

G1/2” (BSP 1/2 inch) threaded entries.

 

Installation can easily be carried out retrospectively to existing installations. The TP48 is screwed into any unused conduit entry on the transmitter case and flying leads are connected to the terminal block (+ve, -ve) and the internal earth stud. The 3 wire TP protects +ve, -ve and signal. The 4 wire TP48 protects +ve, -ve, signal +ve and -ve. The TPs operate without in any way affecting normal operation - passing acor dc signals without attenuation while diverting surge currents safely to earth and clamping output voltages to specific levels.

 

 

SPECIFICATION of MTL TP48-I-NDI Surge Protection Devices TP48 TP48-I-NDI Safe Surge Protectors Arrived

 

Maximum surge current

20kA peak current (8/20µs waveform)

 

Leakage current of MTL TP48-I-NDI Surge Protection Devices TP48 TP48-I-NDI Safe Surge Protectors Arrived

 

Less than 10µA at max. working

voltage

 

Working voltage of MTL TP48-I-NDI Surge Protection Devices TP48 TP48-I-NDI Safe Surge Protectors Arrived

 

35V dc maximum

 

Bandwidth of MTL TP48-I-NDI Surge Protection Devices TP48 TP48-I-NDI Safe Surge Protectors Arrived

 

1MHz

 

Resistance of MTL TP48-I-NDI Surge Protection Devices TP48 TP48-I-NDI Safe Surge Protectors Arrived

 

No resistance introduced into loop

 

Ambient temperature limits of MTL TP48-I-NDI Surge Protection Devices TP48 TP48-I-NDI Safe Surge Protectors Arrived

 

-40°C to +85°C (-40°F to +185°F) (working)

-40°C to +85°C (-40°F to +185°F) (storage)

 

Humidity of MTL TP48-I-NDI Surge Protection Devices TP48 TP48-I-NDI Safe Surge Protectors Arrived

 

5% to 95% RH (non-condensing)

 

Electrical connections of MTL TP48-I-NDI Surge Protection Devices TP48 TP48-I-NDI Safe Surge Protectors Arrived

 

TP48

 3 flying leads (line1, line 2 & earth)

TP48 3 Wire

 4 flying leads (+ve, -ve, signal &

earth)

TP48 4 Wire

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

 signal -ve, earth)

Wire size: 32/0.2 (1.0mm2, 18 AWG)

Lead length: 250mm (minimum)

 

Casing of MTL TP48-I-NDI Surge Protection Devices TP48 TP48-I-NDI Safe Surge Protectors Arrived

 

316 stainless steel suitable for harsh

environments

 

Threads of MTL TP48-I-NDI Surge Protection Devices TP48 TP48-I-NDI Safe Surge Protectors Arrived

 

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”)

 

 

ORDERING INFORMATION of MTL TP48-I-NDI Surge Protection Devices TP48 TP48-I-NDI Safe Surge Protectors Arrived

 

Model                  TP48

Nominal voltage Un 35V

Rated voltage (MCOV) Uc 58V

Nominal current In n/a

Nominal discharge current (8/20µs) i

sn 3kA

Max discharge current (8/20µs) Imax 20kA

Lightning impulse current (10/350µs) Iimp 2.5kA

Residual voltage @ isn Up 95V L-G 500V

Voltage protection level @ 1kV/µs Up <76V

Bandwidth fG 1MHz

Capacitance C 100pF

Series resistance R n/a

Operating temperature range -40°C to +60°C

Category tested A2, B2, C1, C2, C3, D1

Overstressed fault mode in=3kA 12kA

Impulse durability (8/20µs) 10kA

Degree of protection IP66

AC durability 1Arms, 5T

Service conditions 80kPa - 160kPa 5% - 95% RH

 

 

 

TO ORDER SPECIFY of MTL TP48-I-NDI Surge Protection Devices TP48 TP48-I-NDI Safe Surge Protectors Arrived

 

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

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

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

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

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

TP48-3-G Non-certified SPD - G 1/2” BSP 1/2 inch

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

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

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

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

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

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

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

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

TP48-3-G-NDI Certified SPD - 20mm ISO thread

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

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

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

Ordering Models of MTL TP48-I-NDI Surge Protection Devices TP48 TP48-I-NDI Safe Surge Protectors Arrived