معرفی محصول

رله بریرمدل  MTL4524 تک کاناله میباشد.در مناطق ضد انفجار استفاده میشود.

حداقل ولتاژخروجی :13.6V at 48mA

حداکثر ولتاژ خروجی : 24V from 180Ω


توضیحات محصول

With the MTL4523 interface, an on/off device in a hazardous area can be controlled by a volt-free contact or logic signal in the safe

area. It is suitable for driving loads such as solenoids. Line fault detection (LFD), which operates irrespective of the output state, is

signalled by a safearea solid-state switch which de-energises MTLx523, or energises MTL4523R, if a field line is open or short–

circuited. Earth fault detection can be provided by connecting an MTL4220 earth leakage detector to terminal 3

Number of channels One

Location of load Zone 0, IIC, T4–6 hazardous area if suitably certified Div. 1, Group A, hazardous location Minimum output

voltage Equivalent output circuit

Hazardous-area output Minimum output voltage: 13.6V at 48mA Maximum

output voltage: 24V from 180Ω Maximum off-state output voltage: 4V from 180Ω

Current limit: 48mA minimum Output ripple < 0.5% of maximum output, peak to peak Control input Suitable for switch contacts, an

open collector transistor or logic drive. (Internal contact wetting voltage 12V @ 0.2mA contact closed. Not suitable for voltage control

via series diode.) Output turns on if input switch closed, transistor on or < 1.4V applied across control input Output turns off if input

switch open, transistor off or > 4.5V applied across control input

Response time Output within 10% of final value within 100ms Line fault detection (LFD) Open or short circuit in field cabling de-

energises* solid state

line-fault signal. LFD transistor is switched on*, provided that the field circuit impedance is > 55Ω and < 4kΩ

SIL capable

These models have been assessed for use in IEC 61508 functional safety applications. SIL2 capable for a single device (HFT=0) SIL3

capable for multiple devices in safety redundant configurations (HFT=1) See data on MTL web site and refer to the safety manual.

Hazardous area Safe area 6 5 4 3 2 1 7 8 9 10 11 12 13 14 Solenoid, alarm or other IS device + – Vs– Vs+ 20 to 35V dc + – LFD + ‡

‡ link to reverse output phase Control MTL5523 MTL4523 / MTL4523R Hazardous area Safe area 6 5 4 3 2 1 Solenoid, alarm or other

IS device + – + – LFD† † MTL4523R LFD phase reversed Vs– Vs+ 20 to 35V dc Control + – 9 8 7 12 11 10 13 14 FSM FUNCTIONAL

SAFETY MANAGEMENT IEC 61508:2010 MTL4523/R – MTL5523 SOLENOID/ALARM DRIVER with line fault detection, IIC EPSx523/R

Rev9 040517 SI

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