ASP

MTL 5511 SWITCH/PROXIMITY DETECTOR INTERFACE
INTRINSICALLY SAFE ISOLATOR

Zones: 2, (0, 1, 2, 20, 21, 22)
Ex II 3 G
Ex nA nC IIC T4 Gc

Ex II (1) GD
[Ex ia] IIC
[Ex iaD]
Ex I (M1) [Ex ia] I
ATEX, IECEx

Repeater power supply 4/20mA, HART®, 2- or 3-wire transmitters
Number of channels: One
Safe-area output: Signal range: 4 to 20mA. Under/over-range: 0 to 24mA
Hazardous-area input: Signal range: 0 to 24mA (including over-range)
Transmitter voltage: 16.5V at 20mA
Maximum current consumption (with 20mA signal) - 51mA at 24V
Power dissipation within unit (with 20mA signal): MTLx541 0.7W @ 24V dc.
MTLx541S 1.0W @ 24V dc

Datasheet

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MTL 5561 FIRE AND SMOKE DETECTOR INTERFACE
INTRINSICALLY SAFE ISOLATOR

Zones: 2 (, 0, 1, 2, 20, 21, 22)
Ex II 3 G
Ex nA nC IIC T4

Ex II (1) GD
[Ex ia] IIC
[Ex iaD]
Ex I (M1) [Ex ia] I
ATEX, IECEx

Fire and Smoke Detector Interface
Number of channels: Two, fully floating, loop powered.
Input voltage: 6 to 30V dc
Current range: 1 to 40mA, nominal
Maximum output voltage: 28V from 300Ohms
Power dissipation within unit:
0.7W maximum at 24V with 40mA signal (each channel)
0.9W maximum at 30V with 40mA signal (each channel)

Datasheet

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MTL 5516C SWITCH/ PROXIMITY DETECTOR INTERFACE
INTRINSICALLY SAFE ISOLATOR

Zones: 2 (0, 1, 2, 20, 21, 22)
Ex II 3 G
Ex nA nC IIC T4 Gc

Ex II (1) GD
[Ex ia] IIC
[Ex iaD]
Ex I (M1) [Ex ia] I
ATEX, IECEx

Switch/ Proximity Detector Interface
Number of channels: 2, with line fault detection
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 1kOhms ±10%
Maximum current consumption: 35mA at 24V
Power dissipation within unit: 0.84W at 24V

Datasheet

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MTL 5525 SOLENOID/ALARM DRIVER
INTRINSICALLY SAFE ISOLATOR

Zones: 2 (0, 1, 2, 20, 21, 22)
Ex II 3 G
Ex nA IIC T4

Ex II (1) GD
[Ex ia] IIC
[Ex iaD]
Ex I (M1) [Ex ia] I
ATEX, IECEx

Solenoid/Alarm Driver, switch operated with override, IIC, low power
Number of channels: One
Hazardous-area output:
Minimum output voltage: 7V at 48mA
Maximum output voltage: 24V from 300Ohms
Current limit: 48mA
Maximum current consumption: 100mA at 24V dc
Power dissipation within unit:
1.3W with typical solenoid valve, output on
1.9W worst case

Datasheet

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MTL 5544 REPEATER POWER SUPPLY
INTRINSICALLY SAFE ISOLATOR

Zones: 2 (0, 1, 2, 20, 21, 22)
Ex II 3 G
Ex nA IIC T4

Ex II (1) GD
[Ex ia] IIC
[Ex iaD]
Ex I (M1) [Ex ia] I
ATEX, IECEx

Repeater Power Supply, 4/20mA, HART®, 2- or 3- wire transmitters
Number of channels: Two
Safe-area output: Signal range: 4 to 20mA. Under/over-range: 0 to 24mA
Hazardous-area input: Signal range: 0 to 24mA (including over-range)
Transmitter voltage: 16.5V at 20mA
Maximum current consumption (with 20mA signals) 96mA at 24V dc
Power dissipation within unit (with 20mA signals): MTLx544 1.4W @ 24V dc
MTLx544S 1.9W @ 24V dc

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MTL 5541 REPEATER POWER SUPPLY
INTRINSICALLY SAFE ISOLATOR

Zones: 2 (0, 1, 2, 20, 21, 22)
Ex II 3 G
Ex nA nC IIC T4 Gc

Ex II (1) GD
[Ex ia] IIC
[Ex iaD]
Ex I (M1) [Ex ia] I

ATEX, IECEx

Switch/ ProximityDetector Interface
Number of channels: One
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 1kOhms ±10%
Maximum current consumption: 25mA at 24V
Power dissipation within unit: 0.6W at 24V

Datasheet

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MTL 5514 SWITCH/ PROXIMITY DETECTOR INTERFACE
INTRINSICALLY SAFE ISOLATOR

Zones: 2 (0, 1, 2, 20, 21, 22)
Ex II 3 G
Ex nA nC IIC T4 Gc

Ex II (1) GD
[Ex ia] IIC
[Ex iaD]
Ex I (M1) [Ex ia] I
ATEX, IECEx

Switch/ Proximity Detector Interface
Number of channels: One
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 1kOhms ±10%
Maximum current consumption: 25mA at 24V dc
Power dissipation within unit: 0.6W at 24V

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MTL 5521 SOLENOID/ALARM DRIVER
INTRINSICALLY SAFE ISOLATOR

Zones: 2 (0, 1, 2, 20, 21, 22)
Ex II 3 G
Ex nA IIC T4

Ex II (1) GD
[Ex ia Ga] IIC
[Ex ia Da] IIIC
Ex I (M1) [Ex ia Ma] I

ATEX, IECEx

Solenoid/ Alarm Driver, loop-powered, IIC
Number of channels: One
Hazardous-area output: (MTLx521)
Minimum output voltage: 12.8V at 48mA
Maximum output voltage: 24V from 180Ohms
Current limit: 48mA
Maximum current consumption: 90mA at 24V
Power dissipation within unit:1.4W at 24V

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MTL 5544D REPEATER POWER SUPPLY
INTRINSICALLY SAFE ISOLATOR

Zones: 2 (0, 1, 2, 20, 21, 22)
Ex II 3 G
Ex nA IIC T4

Ex II (1) GD
[Ex ia Ga] IIC
[Ex ia Da] IIIC
Ex I (M1) [Ex ia Ma] I
ATEX, IECEx

Repeater Power Supply
single channel, 4/20mA, HART®, 2- or 3-wire transmitters, two outputs
Number of channels: One
Safe-area output: Signal range: 4 to 20mAUnder/over-range: 0 to 24mA
Hazardous-area input: Signal range: 0 to 24mA (including over-range)
Transmitter voltage: 16.5V at 20mA
Maximum current consumption: (with 20mA signals) 96mA at 24V dc
Power dissipation within unit: (with 20mA signals) 1.4W @ 24V dc

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MTL 4511 SWITCH/PROXIMITY DETECTOR INTERFACE
INTRINSICALLY SAFE ISOLATOR

Zones: 2 (0, 1, 2, 20, 21, 22)
Ex II 3 G
Ex nA nC IIC T4 Gc

Ex II (1) GD
[Ex ia] IIC
[Ex iaD]
Ex I (M1) [Ex ia] I
ATEX, IECEx

Repeater power supply 4/20mA, HART®, 2- or 3-wire transmitters
Number of channels: One
Safe-area output: Signal range: 4 to 20mA. Under/over-range: 0 to 24mA
Hazardous-area input: Signal range: 0 to 24mA (including over-range)
Transmitter voltage: 16.5V at 20mA
Maximum current consumption (with 20mA signal) - 51mA at 24V
Power dissipation within unit (with 20mA signal): MTLx541 0.7W @ 24V dc.
MTLx541S 1.0W @ 24V dc

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MTL 4561 FIRE AND SMOKE DETECTOR INTERFACE
INTRINSICALLY SAFE ISOLATOR

Zones: 2 (0, 1, 2, 20, 21, 22)
Ex II 3 G
Ex nA nC IIC T4

Ex II (1) GD
[Ex ia] IIC
[Ex iaD]
Ex I (M1) [Ex ia] I
ATEX, IECEx

Fire and Smoke Detector Interface
Number of channels: Two, fully floating, loop powered.
Input voltage: 6 to 30V dc
Current range: 1 to 40mA, nominal
Maximum output voltage: 28V from 300Ohms
Power dissipation within unit:
0.7W maximum at 24V with 40mA signal (each channel)
0.9W maximum at 30V with 40mA signal (each channel)

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MTL 4516C SWITCH/ PROXIMITY DETECTOR INTERFACE
INTRINSICALLY SAFE ISOLATOR

Zones: 2 (0, 1, 2, 20, 21, 22)
Ex II 3 G
Ex nA nC IIC T4 Gc

Ex II (1) GD
[Ex ia] IIC
[Ex iaD]
Ex I (M1) [Ex ia] I
ATEX, IECEx

Switch/ Proximity Detector Interface
Number of channels: 2, with line fault detection
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 1kOhms ±10%
Maximum current consumption: 35mA at 24V
Power dissipation within unit: 0.84W at 24V

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MTL 4525 SOLENOID/ALARM DRIVER
INTRINSICALLY SAFE ISOLATOR

Zones: 2 (0, 1, 2, 20, 21, 22)
Ex II 3 G
Ex nA IIC T4

Ex II (1) GD
[Ex ia] IIC
[Ex iaD]
Ex I (M1) [Ex ia] I
ATEX, IECEx

Solenoid/Alarm Driver, switch operated with override, IIC, low power
Number of channels: One
Hazardous-area output:
Minimum output voltage: 7V at 48mA
Maximum output voltage: 24V from 300Ohms
Current limit: 48mA
Maximum current consumption: 100mA at 24V dc
Power dissipation within unit:
1.3W with typical solenoid valve, output on
1.9W worst case

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MTL 4544 REPEATER POWER SUPPLY
INTRINSICALLY SAFE ISOLATOR

Zones: 2 (0, 1, 2, 20, 21, 22)
Ex II 3 G
Ex nA IIC T4

Ex II (1) GD
[Ex ia] IIC
[Ex iaD]
Ex I (M1) [Ex ia] I
ATEX, IECEx

Repeater Power Supply, 4/20mA, HART®, 2- or 3- wire transmitters
Number of channels: Two
Safe-area output: Signal range: 4 to 20mA. Under/over-range: 0 to 24mA
Hazardous-area input: Signal range: 0 to 24mA (including over-range)
Transmitter voltage: 16.5V at 20mA
Maximum current consumption (with 20mA signals) 96mA at 24V dc
Power dissipation within unit (with 20mA signals): MTLx544 1.4W @ 24V dc
MTLx544S 1.9W @ 24V dc

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MTL 4541 REPEATER POWER SUPPLY
INTRINSICALLY SAFE ISOLATOR

Zones: 2 (0, 1, 2, 20, 21, 22)
Ex II 3 G
Ex nA nC IIC T4 Gc

Ex II (1) GD
[Ex ia] IIC
[Ex iaD]
Ex I (M1) [Ex ia] I

ATEX, IECEx

Switch/ ProximityDetector Interface
Number of channels: One
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 1kOhms ±10%
Maximum current consumption: 25mA at 24V
Power dissipation within unit: 0.6W at 24V

Datasheet

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MTL 4514 SWITCH/ PROXIMITY DETECTOR INTERFACE
INTRINSICALLY SAFE ISOLATOR

Zones: 2 (0, 1, 2, 20, 21, 22)
Ex II 3 G
Ex nA nC IIC T4 Gc

Ex II (1) GD
[Ex ia] IIC
[Ex iaD]
Ex I (M1) [Ex ia] I
ATEX, IECEx

Switch/ Proximity Detector Interface
Number of channels: One
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 1kOhms ±10%
Maximum current consumption: 25mA at 24V dc
Power dissipation within unit: 0.6W at 24V

Datasheet

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MTL 4521 SOLENOID/ALARM DRIVER
INTRINSICALLY SAFE ISOLATOR

Zones: 2 (0, 1, 2, 20, 21, 22)
Ex II 3 G
Ex nA IIC T4

Ex II (1) GD
[Ex ia Ga] IIC
[Ex ia Da] IIIC
Ex I (M1) [Ex ia Ma] I
ATEX

Solenoid/ Alarm Driver, loop-powered, IIC
Number of channels: One
Hazardous-area output: (MTLx521)
Minimum output voltage: 12.8V at 48mA
Maximum output voltage: 24V from 180Ohms
Current limit: 48mA
Maximum current consumption: 90mA at 24V
Power dissipation within unit:1.4W at 24V

Datasheet

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MTL 4544D REPEATER POWER SUPPLY
INTRINSICALLY SAFE ISOLATOR

Zones: 2 (0, 1, 2, 20, 21, 22)
Ex II 3 G
Ex nA IIC T4

Ex II (1) GD
[Ex ia Ga] IIC
[Ex ia Da] IIIC
Ex I (M1) [Ex ia Ma] I
ATEX, IECEx

Repeater Power Supply
single channel, 4/20mA, HART®, 2- or 3-wire transmitters, two outputs
Number of channels: One
Safe-area output: Signal range: 4 to 20mAUnder/over-range: 0 to 24mA
Hazardous-area input: Signal range: 0 to 24mA (including over-range)
Transmitter voltage: 16.5V at 20mA
Maximum current consumption: (with 20mA signals) 96mA at 24V dc
Power dissipation within unit: (with 20mA signals) 1.4W @ 24V dc

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MTL 7706+ 'SMART' 2-WIRE 4/20MA TRANSMITTER
ZENER BARRIER

Zones: 2
Ex II 3 G
Ex nA IIC T4 Gc

II (1) GD [Ex ia Ga] IIC
(-20°C to +60°C)

II (1) GD [Ex ia Da] IIIC
(-20°C to +60°C)

ATEX, IECEx

Number of channels: one
Safe-area output: Signal range: 4 to 20mA
Pass Incoming Communications Signals up to: 10kHZ
Supply Voltage: 20 to 35V dc w.r.t earth
Output Current: 4 to 20 mA
Safe-area Load Resistance: 0 to 500 Ohms
Supply Current: 45mA (typical at 20mA and 24V supply)
Supply Current: 60mA (maximum at 20mA and 20V supply)
Safety Description: 28V 300Ohms 93mA

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MTL 7707+ SWITCH INPUTS AND SWITCHED OUTPUTS
ZENNER BARRIER

Zones: 2
Ex II 3 G
Ex nA IIC T4 Gc

II [1] GD [EEx ia] IIC
(-20°C to +60°C)

II [1] GD [EEx ia] IIB
(-20°C to +60°C)

ATEX, IECEx

Number of channels: 2
Supply Voltage: 10 to 35V dc (w.r.t earth)
Output Current: Up to 35mA
Supply Current: Load out + 1.6mA, supply <26V
Supply Current: Limited to 50mA, supply >28 or low load resistance
Safety Description: 28V 300Ohms 93mA

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MTL 7728+ CONTROLLER OUTPUTS, SOLENOIDS
ZENNER BARRIER

Zones: 2
Ex II 3 G
Ex nA IIC T4 Gc

II [1] GD [EEx ia] IIC
(-20°C to +60°C)

II [1] GD [EEx ia] IIB
(-20°C to +60°C)

ATEX, IECEx

Number of channels: One
Supply Voltage: 22.9 to 30V dc w.r.t earth
Input Characteristics: Relay energised if input >2.1mA (<2k Ohms)
Input Characteristics: Relay de-energised if input <1.2mA (>10k Ohms)
Relay Contacts: 50V ac 0.5A. Resistive
Relay Contacts: 30V dc 1A. Resistive
Supply Current: 26mA maximum @ 24V
Response Time: <10ms

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MTL 774X PROXIMITY SWITCH, SOLID STATE OUTPUT AND LINE FAULT DETECT
ZENNER BARRIER

Zones: 2
Ex II 3 G
Ex nA nC IIC T4 Gc

II [1] GD [EEx ia] IIC
(-20°C to +60°C)

II [1] GD [EEx ia] IIB
(-20°C to +60°C)

ATEX, IECEx

Number Of Channels: One
Supply Voltage: 20 to 35V dc w.r.t earth
Supply Current: 20mA Maximum @ 24V
Input Characteristics: Output energised if input >2.1mA (<2k Ohms)
Input Characteristics: Output de-energised if input <1.2mA (>10 Ohms)
Operating frequency: dc to 2.5kHz
Max Off-state Voltage: 35V
Max Off-state leakage: 10?A
Max On-state Current: 50mA
Max On-state Voltage Drop:
<1.41V @ 50mA
<1.22V @ 2mA
Typical: <1V

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MTL 7755AC 2- OR 3- WIRE RTDS (FLOATING BRIDGE)
ZENNER BARRIER

Zones: 2
Ex II 3 G
Ex nA IIC T4 Gc

II [1] GD [EEx ia] IIC
(-20°C to +60°C)

II [1] GD [EEx ia] IIB
(-20°C to +60°C)

ATEX, IECEx

Number of channels: Two
Safety Description: 10V 19mA
Supply Voltage 22.9 to 30V dc w.r.t earth
Input Characteristics:
Relay energised If Input >2.1mA (<2k Ohms)
Relay de-energised if input <1.2mA (>10k Ohms)
Relay Contacts:
50V ac 0.5A. Resistive
30V dc 1A. Resistive
Supply Current: 45mA mAXIMIM @ 24v
Response Time: <10ms

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MTL 7756AC 3- WIRE RTDS (GROUNDED BRIDGE)
ZENNER BARRIER

Zones: 2
Ex II 3 G
Ex nA IIC T4 Gc

II [1] GD [EEx ia] IIC
(-20°C to +60°C)

II [1] GD [EEx ia] IIB
(-20°C to +60°C)

ATEX, IECEx

Number Of Channels: Two
Safety Description: 10V 19mA
Supply Voltage: 20 to 35V dc w.r.t earth
Supply Current: 29mA Maximum @ 24V
Input Characteristics:
Output energised if input >2.1mA (<2k Ohms)
Output de-energised if input <1.2mA (>10k Ohms)
Output Characteristics:
Operating frequency: dc to 2.5kHz
Max Off-state Voltage: 35V
Max Off-state Leakage: 10?A
Max On-state Voltage Drop:
1.41V @ 50mA
1.

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MTL 7760AC ACTIVE DC & AC SENSORS THERMOCOUPLES
ZENNER BARRIER

Zones: a
Ex II 3 G
Ex nA IIC T4 Gc

II [1] GD [EEx ia] IIC
(-20°C to +60°C)

II [1] GD [EEx ia] IIB
(-20°C to +60°C)

ATEX, IECEx

Number of Channels: One
Supply Voltage: 22.9 to 30V dc w.r.t earth
LFD relay + Red LED: Energised Input <50?A or <100 Ohms
Supply Current: 38mA maximum @ 24V
Response Time: <10ms
Relay Contacts:
50V ac 0.5A. Resisitive
30V dc 1A. Resistive
Input Characteristic:
Output energised if input >2.1mA (<2k Ohms)
Output de-energised if input <1.2mA (>10k Ohms)

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MTL 7787+/- TRANSMITTERS CONTROLLER OUTPUT, SWITCHES
ZENNER BARRIER

Zones: 2
Ex II 3 G
Ex nA IIC T4 Gc

II [1] GD [EEx ia] IIC
(-20°C to +60°C)

II [1] GD [EEx ia] IIB
(-20°C to +60°C)

ATEX, IECEx

Number of Channels: one
2 Wire Transmitter
Signal Output: 4/20mA
Power Supply: 26V
Vwkg: 12.9V
Load Resistance: 250Ohms

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