MTL4516 / C-MTL5516C 2-channel separator

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The MTLx516/C enable two safe-area loads to be controlled by a switch or proximity detector located in a hazardous-area. When selected, open or short circuit conditions in the field wiring are detected by the line-fault-detect (LFD) facility and also indicated on the top of the module. Phase reversal for each channel is selected by a switch on the side of the module and output is provided by changeover relay contacts.

Specification

Number of channels	Two
Location of switches	Zone 0, IIC, T6 hazardous area Div 1, Group A hazardous location
Location of proximity detector	Zone 0, IIC, T4–6 hazardous area if suitably certified Div.1, Group A, hazardous location
Hazardous-area inputs	Inputs conforming to BS EN60947–5–6:2001 standards for proximity detectors (NAMUR)
Voltage applied to sensor	7 to 9V dc from 1kΩ ±10%
Input/output characteristics	Normal phase: • Outputs closed if input > 2.1mA (< 2kΩ in input circuit) • Outputs open if input < 1.2mA (> 10kΩ in input circuit) Hysteresis: 200μA (650Ω) nominal
Line fault detection (LFD) (when selected)*	User-selectable via switches on the side of the unit Open-circuit alarm on if I_in < 50 uA Open-circuit alarm off if I_in > 250 uA Short-circuit alarm on if R_in < 100 Ohm Short-circuit alarm off if R_in > 360 Ohm
Safe-area output	Channel: Two single-pole relays with normally open contacts LFD: Single pole relay with changeover contact (MTL4517) Single pole relay with normally open contact (MTL5517)
LED indicators	Green: power indication Yellow: two: channel status, on when output energised Red: two: LFD indication, on when line fault detected
Maximum current consumption	35mA at 24V
Power dissipation within unit	0.84W at 24V
Safety description (each channel)	Uo=10.5V Io=14mA Po=37mW Um = 253V rms or dc

(*) Resistors must be fitted when using the LFD facility with a contact input:
500 Ohm to 1kΩ in series with switch
20 kOhm to 25kΩ in parallel with switch
(**) Note: reactive loads must be adequately suppressed.

Relay characteristics

	MTL4516/C	MTL5516C
Response time	Max 10 ms	10ms maximum
Contact rating (Safe Area)	10W, 0.5A, 35V DC	250V ac, 2A, cosØ >0.7, 40V dc, 2A, resistive load
Contact rating (Zone 2)	10W, 0.5A, 35V DC	35V, 2A, 100VA

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

MTL4516

MTL4516C

MTL5516C

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MTL4516/C-MTL5516C_dane techniczne

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Product Details
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