MTL Safety Barriers Crouse-Hinds Switch/ Proximity Detector Interface MTL4504
- Product Name：MTL Safety Barriers Crouse-Hinds Switch/ Proximity Detector Interface MTL4504
- Product Number：MTL4504
- Brand：MTL
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MTL Safety Barriers Crouse-Hinds Switch/ Proximity Detector Interface MTL4504
的详细介绍MTL Safety Barriers Crouse-Hinds Switch/ Proximity Detector Interface MTL4504
MTL Safety Barriers Crouse-Hinds Switch/ Proximity Detector Interface MTL4504
The MTL4504 enables a safe–area load to be controlled, through a
relay, by a proximity detector or switch located in a hazardous area. Line
faults are signalled through a separate relay and indicated on the top of
the module. MTBF information for the LFD relay is available from Eaton
to allow the failure rate for the LFD relay to be calculated when used
in the critical path with the output relay for safety critical applications.
Switches are provided to select phase reversal and to enable the line
fault detection.
MTL Safety Barriers Crouse-Hinds Switch/ Proximity Detector Interface MTL4504
Number of channels
One
Location of switch
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
MTL Safety Barriers Crouse-Hinds Switch/ Proximity Detector Interface MTL4504
Line fault detection (LFD) (when selected)
User-selectable via switches on the side of the unit. Line faults are
indicated by an LED. Line fault relay is de-energised and channel
output relay de-energised if input line-fault detected
Open-circuit alarm on if Iin < 50µA
Open-circuit alarm off if Iin > 250µA
Short-circuit alarm on if Rin < 100Ω
Short-circuit alarm off if Rin > 360Ω
Note: Resistors must be fitted when using the LFD facility with a contact input
500Ω to 1kΩ in series with switch
20kΩ to 25kΩ in parallel with switch
MTL Safety Barriers Crouse-Hinds Switch/ Proximity Detector Interface MTL4504
Relay characteristics
MTL4504
Response time:
10ms maximum
Contact rating (Safe Area):
10W, 0.5A,
35V dc
Contact rating (Zone 2):
10W, 0.5A,
35V dc
MTL Safety Barriers Crouse-Hinds Switch/ Proximity Detector Interface MTL4504
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