MTL 2210B 1-Channel 120V AC Switch Operated Relay Zone 0 IIC T6 Hazardous Location LED Indicator
NOTE: You will receive one (1) relay in original packaging. Instruction Pamphlet included
Number of channels: One, fully floating Switch
Location of switch: Zone 0, IIC, T6 hazardous area. Div 1, Group A, hazardous location
Voltage applied to switch: 5.6V dc from 1.5kΩ
Input/output characteristics: Relay energised if <200Ω between tmnls 1 & 2 and 3 & 4 Relay de-energised if >500Ω between tmnls 1 & 2* or 3 & 4
Hysteresis, nominal 100Ω
Latching facility: (Enabled by linking terminals 5 & 6) Relay then latches ON when energised (shorts tmnls 1 & 2) Relay de-energised if unlatch circuit broken (latching)
Power supply failure protection: Relay de-energised if supply fails
Broken line protection: Relay de-energised if either line broken (non-latching) Relay de-energised if unlatch circuit broken (latching)
Fail-safe’ earth fault protection: (Enabled by connecting terminal 8 to earth) Relay de-energised if <1kΩ to earth, total for all 3 lines Relay not de-energised if >7.5kΩ to earth, total for all 3 lines
‘No-fail’ earth fault protection: (Enabled by connecting terminal 8 to MTL4220) Fault on any line proclaimed: unit continues working
Response time: 50ms, nominal
Contacts: 2-pole changeover
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: 2 x 105 operations at maximum load
LED indicator: ON when relay energised
Consumption: 0.9 to 1.4W (ac versions) 60mA (24V dc version)
Ambient temperature limits: –20 to +55°C (all versions, close packed) –20 to +60°C (all versions, at least 5mm apart) –40 to +80°C (all versions, storage)
Safety description: 7V, 300Ω, 22mA
FM max entity parameters: Voc = 8.3V, Isc = 26mA, Ca = 7μF, La = 47mH
The MTL2210B enables two 500VA safe-area loads to be controlled in separate circuits simultaneously by one light-duty on/off switch in a hazardous area.
Alternatively, it can be arranged to latch for pushbutton stop/start control of an electric motor, the relay then being energised by brief closure of one switch contact and de-energised by the brief opening of another.
The stop switch overrides the start switch, even if the start circuit is closed, making sure that the motor can be turned off under all conditions.
In this application, the second pair of changeover output contacts enables the status of the motor to be fed to a computer or data logger.