MTL 2211
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Murty.yvrMTL 2211
Uploaded by
Murty.yvrMTL2211
MTL2211 SWITCH
OPERATED RELAY
2-channel
The MTL2211 enables two 500VA safe-area loads to be controlled
independently through two relays by two light-duty on/off switches in
a hazardous area. The two input circuits are independently fully
floating and are unaffected by each other. Each relay is provided with
two sets of changeover contacts, which are connected in parallel
within the unit for maximum reliability. Applications include the
operation of medium-powered electrical equipment such as alarms,
lights, and small electrical motors, or contactors for controlling higher-
powered equipment.
SPECIFICATION
See also ‘Common specification’
Number of channels
Two, independently fully floating
Location of switches
Zone 0, IIC, T6 hazardous area
Div 1, Group A, hazardous area
Voltage applied to each switch
2.5V dc from 680
Ω
Input/output characteristics (each channel)
Relay energised if <200Ω in switch circuit
Relay de-energised if >500 Ω in switch circuit
Hysteresis, nominal 100Ω
Power supply failure protection
Both relays de-energised if supply fails
Broken line protection (each channel)
Relay de-energised if either line broken
Fail-safe earth fault protection (each channel)
(Enabled by connecting terminal 3 or 7 to earth)
Relay de-energised if <1kΩ to earth, total for both lines
Relay not de-energised if >7.5kΩ to earth, total for both lines
‘No-fail’ earth fault protection (each channel) Safety description (each channel)
(Enabled by connecting terminal 3 or 7 to MTL4220) 7V, 300Ω, 22mA
Fault on either line proclaimed: unit continues working FM max entity parameters (each channel)
Response time (each channel) Voc = 8.3V, Isc = 21.7mA, Ca = 5.5μF, La = 75mH
50ms, nominal
Contacts (each channel)
1-pole changeover, duplicated within unit
Contact rating
250V:5A:500VA (ac), resistive loads, reactive loads must be
suppressed
250V:5A:250W (dc), resistive loads, reactive loads must be
suppressed
Contact life expectancy
3 x 10 5 operations at maximum load
LED indicator (each channel)
ON when associated relay energised (safe condition)
Consumption
1.7 to 2.5W (ac versions)
110mA (24V dc version)
Ambient temperature limits
–20 to +50°C (ac versions, close packed)
–20 to +45°C (24V dc versions at 26V, close packed)
–20 to +60°C (all versions, at least 5mm apart)
–40 to +80°C (all versions, storage)
Eaton Electric Limited, EUROPE (EMEA): The given data is only intended as a product
+44 (0)1582 723633 description and should not be regarded as a legal
Great Marlings, Butterfield, Luton
warranty of properties or guarantee. In the interest
Beds, LU2 8DL, UK. mtlenquiry@eaton.com
of further technical developments, we reserve the
Tel: + 44 (0)1582 723633 Fax: + 44 (0)1582 422283 right to make design changes.
THE AMERICAS:
E-mail: mtlenquiry@eaton.com
+1 800 835 7075
www.mtl-inst.com
mtl-us-info@eaton.com
© 2016 Eaton
All Rights Reserved ASIA-PACIFIC:
Publication No. EPS 2000 range rev2 +65 6 645 9888
September 2016 sales.mtlsing@eaton.com