BASIC INFO
MTL7707+ Shunt-Diode Safety Barrier MTL7707+ Protected Barriers
MTL7707+ Shunt-Diode Safety Barrier MTL7707+ Protected Barriers
MTL7707+ for switch inputs and switched outputs
The MTL7707+ is a 2-channel shunt-diode safety barrier similar to the MTL7787+ but with built-in electronic overvolt protection. It is intended primarily for safeguarding a hazardous-area switch controlling a relay, opto-coupler or other safe-area load from an unregulated dc supply in the safe area.
The outgoing channel accepts supply voltages up to +35V and is protected against reverse voltages: the return channel is unaffected by voltages up to +250V. In normal operation the protection circuit introduces only a small voltage drop and shunts less than 1mA to earth, so its overall effect is minimal. If the supply voltage exceeds about 27V, however, causing the Zener diodes to conduct – or if the safe-area load has a very low resistance – the supply current is limited automatically to 50mA, protecting the fuse and power supply and enabling the loop to continue working.
ADDITIONAL SPECIFICATION of MTL7707+ Shunt-Diode Safety Barrier MTL7707+ Protected Barriers
Safety description
28V 300Ω 93mA, terminals 1 to 3
28V Diode, terminals 2 -4
Supply voltage
10 to 35V dc with respect to earth
Output current
Up to 35mA available
Maximum voltage drop
(at 20ºC, current not limited)
Iout x 345Ω + 0.3V, terminals 1 to 3 Iout x 25Ω + 0.9V, terminals 4 to 2 Supply current Iout + 1.6mA, supply <26V
Limited to 50mA, supply >28V or low load resistance
MTL7707+ Shunt-Diode Safety Barrier MTL7707+ Protected Barriers
Analogue Input - 2-wire transmitters, 4-20mA conventional and 'smart' |
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| Power Supply | Barrier |
Loops
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Voltage for Tx
and lines |
Main features |
| Regulated | MTL7787+ |
1 |
12.4V
|
Compatible with most smart Tx's |
| MTL7787P+ | 1 | 13.1V | Higher power, IIC gases | |
| MTL7788R+ | 1 | 13.7V | 1-5V safe area ouput | |
|
Unregulated 20 to 35V |
MTL7706+ |
1
|
15.5V
(250ohm load) |
High accuracy; compatible with most smart transmitters; full output voltage available independently of supply voltage |
| MTL7707P+ | 1 | 13.0V | Higher power, IIB gases | |
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Analogue Input - vibration probes |
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| Power Supply | Barrier |
Loops
|
Main features |
| Regulated | MTL7796– | 1 | For –24V systems |
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Analogue Input - gas detectors |
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| Power Supply | Barrier |
Loops
|
Main features |
| Nominal 6V supplies | MTL7758+ | 1 |
For high current/low voltage MTL7758+ Vwkg = 6.0V |
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Analogue Input - thermocouple & mV sources |
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| Power Supply | Barrier |
Loops
|
Max end to enc resistance per loop |
Main features |
|
Earth-free signal, receiver input floating |
MTL7760ac | 1 | 150 ohm | – |
| Moving coil or low resistance receivers | MTL7755ac | 1 | 38 ohm | – |
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Analogue Input - ac sensors, photocells, microphones & flowmeters |
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| Power Supply | Barrier |
Loops
|
Max end to enc resistance per loop |
Main features |
|
Earth-free signals up to a few kHz |
MTL7760ac | 1 | 150 ohm | – |
|
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Analogue Input - slidewire displacement transducers |
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| Power Supply | Barrier |
Loops
|
Vwkg | Main features |
|
For nominal 6V supplies |
MTL7760ac | 1 | 6.0V | – |
|
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Analogue Input - 2, 3 and 4-wire RTDs |
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| Power Supply | Barrier |
Loops
|
Main features |
| 2-wire | MTL7755ac |
1 |
2 channels track to 0.15 ohm |
| 3-wire | MTL7755ac | 2/3 | End-to-end resistance 19 ohm/channel |
| MTL7756ac | 1 | End-to-end resistance 19 ohm/channel | |
| 4-wire | MTL7755ac |
1/2
|
Needs 2 barriers |
| MTL7760ac | 1/2 | Vwkg = 6V; needs 2 barriers | |
| MTL7761ac | 1/2 | Vwkg = 6V; needs 2 barriers | |
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Analogue Input - strain-gauge bridges (single) |
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| Power Supply | Barrier |
Loops
|
Volts for 350 ohm bridge |
| IIC gases |
MTL7761ac (2) + MTL7764ac (1) |
1 | 9.75V from MTL7766Pac with 20V supply |
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Analogue Input - strain-gauge bridges (multiple) |
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| Power Supply | Barrier |
Loops
|
Volts for 350 ohm bridge (20V in) Number of bridges 1.............2..........3............4 |
| IIC gases |
MTL7761ac (2) + MTL7766ac (1) |
1 | 13.0........9.2.......7.7.........6,2 |
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Analogue Output - controller outputs (I/P converters) |
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| Power Supply | Barrier |
Loops
|
Volt drop at 20mA |
Main features |
| Output goes to 0V (earth return); regulated supplies | MTL7728+ |
1 |
6.8V | – |
| MTL7728P+ | 1 | 5.1V | Higher power, IIC gases | |
| MTL7729P+ | 1 | 3.7V | Higher power, IIB gases | |
| Transistor between controller output and 0V; (diode return); regulated supplies | MTL7787+ | 1 | 8.1V | – |
| MTL7787P+ | 1 | 6.4V | Higher power, IIC gases | |
| Transistor between controller output and 0V; (diode return); unregulated supplies (20 to 35V) | MTL7707+ |
1
|
8.6V | – |
| MTL7707P | 1 | 6.0V | Higher power, IIC gases | |
|
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Digital Input - switches |
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| Power Supply | Barrier |
Loops
|
Main features |
| Regulated | MTL7787+ | 1 | Diode return |
| MTL7787P+ | 1 | ||
| MTL7789+ | 2 | ||
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Digital Input - switches / proximity detectors |
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| Power Supply | Barrier |
Loops
|
Main features |
| Unregulated 22-35V | MTL7741 | 1 | Changeover relay output |
| MTL7742 | 1 | Transistor output, fast switching | |
| MTL7743 | 2 | 2 x relay contacts | |
| MTL7744 | 2 | 2 x transistor output | |
| MTL7745 | 1 | Single channel relay + LFD | |
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Digital Output - alarms, LEDs, solenoid valves, etc |
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| Power Supply | Barrier |
Loops
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Usable power per loop | Main features |
| Switch in power leg, (earth return); regulated supplies | MTL7728+ |
1 |
0.48W | – |
| MTL7728P+ | 1 | 0.59W |
Higher power, IIC gases Voltage drop = 5.1V at 20mA |
|
| MTL7729P+ | 1 | 0.82W | Higher power, IIB gases | |
| Control switch on earth (diode return); regulated supplies | MTL7787+ | 1 | 0.42W | – |
| MTL7787P+ | 1 | 0.51W | Higher power, IIC gases | |
| Transistor between controller output and 0V; (diode return); unregulated supplies (20 to 35V) | MTL7707+ |
1
|
0.29W | Up to 35mA available |
| MTL7707P+ | 1 | 0.68W | Optimised for IIB gases | |
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Digital Input/Output - –ve and floating supplies |
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| Power Supply | Barrier |
Loops
|
Volts for 350 ohm bridge |
|
Regulated negative/floating power supply |
MTL7728– | 1 | – |
|
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2-wire DC/AC systems - signal returns |
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| System or Function | Barrier |
Loops
|
Vwkg | Main features |
| 6V dc systems | MTL7710+ |
1 |
6.0V | – |
| 8V dc system | MTL7710P+ | 1 | 8.0V |
End ot end resistance 42 ohm. 5V at 65mA from 8V supply. IIC gases |
| Low-level logic returns | MTL7764+ | 2 | 10.0V | End-to-end resistance 1050 ohms |
| 12V dc systems | MTL7715+ | 1 | 12.0V | – |
| MTL7715P+ | 1 | 12.6V | – | |
| 18V dc systems | MTL7722+ | 1 | 19.6V | – |
| 2-wire dc/ac systems | MTL7778ac | 1 | 24.0V | – |
| Signal returns | MTL7789+ |
2
|
26.6V | 2 diode return channels + power |
| Securing cables to earth for future use; terminating cable screens | MTL7799 | – | – | Bussed power feed - not certified |
MTL4500 Series Barriers MTL7707+ Shunt-Diode Safety Barrier MTL7707+ Protected Barriers
MTL4501-SR, MTL4504, MTL4510, MTL4510B, MTL4511, MTL4513, MTL4514 (B)(D), MTL4516, MTL4516C, MTL4517, MTL4521, MTL4521L, MTL4523, MTL4523L, MTL4523R, MTL4523V, MTL4523VL, MTL4524, MTL4524S, MTL4525, MTL4526, MTL4531, MTL4532, MTL4533, MTL4541, MTL4541A, MTL4541AS, MTL4541B, MTL4541P, MTL4541S, MTL4541T, MTL4544, MTL4544A, MTL4544AS, MTL4544B, MTL4544D, MTL4544S, MTL4546, MTL4546C, MTL4546S, MTL4546Y, MTL4549, MTL4549C, MTL4549Y, MTL4561, MTL4575, MTL4576-RTD, MTL4576-THC, MTL4581
Model No. of MTL7707+ Shunt-Diode Safety Barrier MTL7707+ Protected Barriers
MTL5501-SR, MTL5510, MTL5510B, MTL5511, MTL5513, MTL5514, MTL5514D, MTL5516C, MTL5517, MTL5521, MTL5522, MTL5523, MTL5523V, MTL5523VL, MTL5524, MTL5525, MTL5526, MTL5531, MTL5532, MTL5533, MTL5541, MTL5541A, MTL5541AS, MTL5541S, MTL5544, MTL5544A, MTL5544AS, MTL5544D, MTL5544S, MTL5546, MTL5546Y, MTL5549, MTL5549Y, MTL5561, MTL5575, MTL5576-RTD, MTL5576-THC, MTL5581, MTL5582 MTL5544D MTL5575 MTL5516C MTL4541 MTL5541 MTL5546Y ICC212 IOP32 IOP32D
MTL7700 Series shunt-diode safety barriers MTL7707+ Shunt-Diode Safety Barrier MTL7707+ Protected Barriers \
MTL7706+ MTL7707+ MTL7707P+ MTL7710+ MTL7715+ MTL7715P+ MTL7722+ MTL7728+ MTL7728- MTL7728AC MTL7728P+ MTL7729P+ MTL7741
MTL7742 MTL7743 MTL7744 MTL7745 MTL7755AC MTL7756AC MTL7758- MTL7758+ MTL7760AC MTL7761AC MTL7761PAC MTL7764+ MTL7764AC
MTL7765AC MTL7766AC MTL7766PAC MTL7767+ MTL7778AC MTL7779+ MTL7787+ MTL7787- MTL7787P+ MTL7788+ MTL7788R+ MTL7789+ MTL7796- MTL7796+ MTL7798 MTL7799 MTL705+ MTL706+ MTL707+ MTL707P+ MTL708+ MTL710+ MTL710AC MTL710P+ MTL715+ MTL715P+ MTL722+
MTL722P+ MTL728+ MTL728AC MTL728P+ MTL729P+ MTL751AC MTL755AC MTL758+ MTL760AC MTL761AC MTL761PAC MTL764+ MTL764AC
MTL765AC MTL766AC MTL766PAC MTL767+ MTL768+ MTL772AC MTL778AC MTL779+ MTL786+ MTL787+ MTL787S+ MTL787SP+ MTL788+
MTL788R+ MTL791 MTL796+ MTL799
ICC MTL7707+ Shunt-Diode Safety Barrier MTL7707+ Protected Barriers
ICC201-I1-O1 ICC201-I1-O2 ICC201-I2-O1 ICC201-I2-O2 ICC201-I2-O2 ICC211-I1-O2 ICC211-I2-O1 ICC211-I2-O2 ICC212 ICC221 ICC222 ICC241-T3
ICC241-T1 ICC241-T2 ICC301-I9-O1 ICC312 ICC316-T2 ICC317-T2-LFD ICC352-T1 ICC352-T2 ICC441 ICC446
MTL7707+ Shunt-Diode Safety Barrier MTL7707+ Protected Barriers
MTL7707+ Shunt-Diode Safety Barrier MTL7707+ Protected Barriers
MTL4510 MTL4510B MTL4511 MTL4513 MTL4514 MTL4514B MTL4514D MTL4516 MTL4516C MTL4517 MTL4521 MTL4521L MTL4523 MTL4524R MTL4523L MTL4524 MTL4524S MTL4524 MTL4526 MTL4531 MTL4532 MTL4541 MTL4541A MTL4541B MTL4544 MTL4544A MTL4544D MTL4544S MTL4546Y MTL4549 MTL4549Y MTL4546 MTL4573 MTL4575 MTL4576-RTD MTL4576-THC MTL4581 MTL4599 MTL4599N
MTL5510 MTL5510B MTL5511 MTL5513 MTL5514 MTL5514D MTL5516C MTL5517 MTL5521 MTL5522 MTL5523 MTL5523V MTL5523VL MTL5524 MTL5525 MTL5526 MTL5531 MTL5532 MTL5533 MTL5541 MTL5541AS MTL5541S MTL5544 MTL5544A MTL5544AS MTL5544D MTL5544S MTL5546 MTL5546Y MTL5549 MTL5549Y MTL5561 MTL5573 MTL5575 MTL5576-RTD MTL5576-THC MTL5581 MTL5582 MTL5599 MTL5314 MTL5501-SR MTL5510 MTL5510B MTL5511 MTL5513 MTL5514 MTL5516C MTL5517 MTL5521 MTL5522 MTL5523 MTL5524 MTL5525 MTL5526 MTL5531 MTL5532 MTL5533 MTL5541 MTL5541A MTL5541AS MTL5541S MTL5544 MTL5544A MTL5544AS MTL5544D MTL5544S
MTL4501-SR MTL4504 MTL4510 MTL4510B MTL4511 MTL4513 MTL4514 MTL4516 MTL4516C MTL4517 MTL4521 MTL4521L MTL4523 MTL4523R MTL4523L MTL4524 MTL4524S MTL4525 MTL4526 MTL4531 MTL4532 MTL4533 MTL4541 MTL4541A MTL4541AS MTL4541B MTL4541P MTL4541S MTL4544 MTL4544A MTL4544AS MTL4544B MTL4544D MTL4544S MTL4546 MTL4546C MTL4546Y MTL4549 MTL4549C MTL4549Y MTL4561 MTL4575 MTL4576-RTD MTL4576-THC MTL4599 MTL4599N
MTL7707+ Shunt-Diode Safety Barrier MTL7707+ Protected Barriers
MTL7707+ Shunt-Diode Safety Barrier MTL7707+ Protected Barriers
MTL7706+ MTL7707+ MTL7707P+ MTL7710+ MTL7715+ MTL7715P+ MTL7722+ MTL7728+ MTL7728- MTL7728AC MTL7728P+ MTL7729P+ MTL7741 MTL7742 MTL7743 MTL7744 MTL7745 MTL7755AC MTL7756AC MTL7758- MTL7758+ MTL7760AC MTL7761AC MTL7761PAC MTL7764+ MTL7764AC MTL7765AC MTL7766AC MTL7766PAC MTL7767+ MTL7778AC MTL7779+ MTL7787+ MTL7787- MTL7787P+ MTL7788+ MTL7788R+ MTL7789+ MTL7796- MTL7796+ MTL7798 MTL7799 MTL705+ MTL706+ MTL707+ MTL707P+ MTL708+ MTL710+ MTL710AC MTL710P+ MTL715+ MTL715P+ MTL722+ MTL722P+ MTL728+ MTL728AC MTL728P+ MTL729P+ MTL751AC MTL755AC MTL758+ MTL760AC MTL761AC MTL761PAC MTL764+ MTL764AC MTL765AC MTL766AC MTL766PAC MTL767+ MTL768+ MTL772AC MTL778AC MTL779+ MTL786+ MTL787+ MTL787S+ MTL787SP+ MTL788+ MTL788R+ MTL791 MTL796+ MTL799
SD07 SD16 SD32 SD55 SD07X SD16X SD32X SD55X SD150X SD275X SD07R SD16R SD32R SD55R SD07R3 SD16R3 SD32R3 SD55R3 SDRTD SD32T3 SDPSTN SLP07D SLP16D SLP32D MA15/D/1/SI MA15/D/2/SI MA15/D/1TT/SI MA15/D/2TT/L MA30/D/1/SI MA30/D/2/SI MA30/D/3/SI MA05/D/1 MA05/D/2 MA10/D/1 MA10/D/2 MA05/SC/1 MA05/SC/2 MA10/SC/1 MA10/SC/2 MA05/I/1 MA05/I/2 MA10/I/1 MA10/I/2
MTL7707+ Shunt-Diode Safety Barrier MTL7707+ Protected Barriers
MTL7707+ Shunt-Diode Safety Barrier MTL7707+ Protected Barriers
TP48-N TP48-N-NDI TP48-I TP48-I-NDI TP48-G TP48-G-NDI TP48-3-N-NDI TP48-3-I-NDI TP48-3-G-NDI TP48-3-N TP48-3-I TP48-3-G TP48-4-N-NDI TP48-4-I-NDI TP48-4-G-NDI TP48-4-N TP48-4-I TP48-4-G ICC201-I1-O1 ICC201-I1-O2 ICC201-I2-O1 ICC201-I2-O2 ICC201-I2-O2 ICC211-I1-O2 ICC211-I2-O1 ICC211-I2-O2 ICC212 ICC221 ICC222 ICC241-T3 ICC241-T1 ICC241-T2 ICC301-I9-O1 ICC312 ICC316-T2 ICC317-T2-LFD ICC352-T1 ICC352-T2 ICC441 ICC446
MTL7707+ Shunt-Diode Safety Barrier MTL7707+ Protected Barriers
MTL7707+ Shunt-Diode Safety Barrier MTL7707+ Protected Barriers
MTL5011B MTL5012 MTL5012S MTL5014 MTL5015 MTL5017 MTL5018 MTL5018AC MTL5021 MTL5021-SR MTL5022 MTL5022-SR MTL5023 MTL5024
MTL5025 MTL5025-SR MTL5031 MTL5032 MTL5040 MTL5041 MTL5042 MTL5042-SR MTL5043 MTL5044 MTL5045 MTL5046 MTL5049 MTL5051 MTL5061 MTL5061-SR MTL5074 MTL5074-RTD MTL5081 MTL5082 MTL5099 MTL5314 MTL5344 MTL5349 MTL5531-111LI MTL5531-115LI MTL5991
MPA5500 MTL5501-SR MTL5510 MTL5510B MTL5511 MTL5513 MTL5514 MTL5514D MTL5516C MTL5517 MTL5521 MTL5522 MTL5523 MTL5523V
MTL5523VL MTL5524 MTL5525 MTL5526 MTL5531 MTL5532 MTL5532-R MTL5533 MTL5541 MTL5541A MTL5541AS MTL5541S MTL5544 MTL5544A
MTL5544AS MTL5544D MTL5544S MTL5546 MTL5546Y MTL5549 MTL5549Y MTL5561 MTL5573 MTL5575 MTL5575-R MTL5576-RTD MTL5576-THC
MTL5581 MTL5582 MTL5599
MTL7707+ Shunt-Diode Safety Barrier MTL7707+ Protected Barriers
MTL7707+ Shunt-Diode Safety Barrier MTL7707+ Protected Barriers
MTL5510 MTL5510B MTL5511 MTL5513 MTL5514 MTL5514D MTL5516C MTL5517 MTL5521 MTL5522 MTL5523 MTL5523V MTL5523VL MTL5524 MTL5525 MTL5526 MTL5531 MTL5532 MTL5533 MTL5541 MTL5541AS MTL5541S MTL5544 MTL5544A MTL5544AS MTL5544D MTL5544S MTL5546 MTL5546Y MTL5549 MTL5549Y MTL5561 MTL5573 MTL5575 MTL5576-RTD MTL5576-THC MTL5581 MTL5582 MTL5599 MTL5314
MTL7707+ Shunt-Diode Safety Barrier MTL7707+ Protected Barriers
MTL7707+ Shunt-Diode Safety Barrier MTL7707+ Protected Barriers
MTL4510 MTL4510B MTL4511 MTL4513 MTL4514 MTL4514B MTL4514D MTL4516 MTL4516C MTL4517 MTL4521 MTL4521L MTL4523 MTL4524R MTL4523L MTL4524 MTL4524S MTL4524 MTL4526 MTL4531 MTL4532 MTL4541 MTL4541A MTL4541B MTL4544 MTL4544A MTL4544D MTL4544S MTL4546Y MTL4549 MTL4549Y MTL4546 MTL4573 MTL4575 MTL4576-RTD MTL4576-THC MTL4581 MTL4599 MTL4599N
HAZ1-3 HAZ4-6 SAF1-3 SAF4-6 SAF7-9 SAF10-12 PWR5000 HAZ-CJC TAG57 TGL57 PB-8T PB-16T PB-24T PB-32T IMB57 MLTHR2 ERB57S ERB57O ERL7 MLETM7 MS010 TH5000 PCS45 PCL45USB DX070 DX170 BMK08 BMK16 DMK01 DMP08 DVK16 MCC45 MCK45 SCK45 MPL01 PCL45USB PCS45 CPM08 CPM16U CPM32U CPS04 CGS08 CPS08 CPS16 CPS16C-250 CPS24 CPS16C BPS04 BPS08 ERK04 ERK06 ERK08 ERK16 HMP24 SVK16 TSK08 TSK16 TSK24
MTL7707+ Shunt-Diode Safety Barrier MTL7707+ Protected Barriers
MTL7707+ Shunt-Diode Safety Barrier MTL7707+ Protected Barriers
We are specialized in intelligent instruments, including : control system, transmitters, flow meters,sensors, recorders, analyzers, control valves, controllers, PLC's, etc.
We mainly supply Yokogawa, Emerson, Rosemount, Fisher, Honeywell, Siemens, ABB, FLUKE, Endress+Hauser, Schneider Electric, Pepperl+Fuchs, MTL, Rockwell(Allen Bradley), Hirschmann, Eaton, Moeller, FUJI, Omron, Yaskawa, Norgren, CHINT, Hach, Weidmuller, Phoenix, SMC, Testo, ASCO, Parker, Mitsubishi, Festo, GE, CISCO, Auma, IFM, GM, Turck, Bently Nevada, MOXA, Krohne, Foxboro and so on.
Why do you choose us?
1. 100% original brand product, 100% quality assurance.
If you find a fake product. Please contact us without hesitation! We afford the shipment cost! We send you a new product asking zero cent.
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We adopt L/C, D/A, D/P, T/T, and other methods. If you can not trust us , you can choose to pay it via Aliexpress! 100% make your money safe!
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Contact:
HONGKONG XIEYUAN TECH CO., LIMITED
Email:becky@hkxytech.com Web:www.hkxytech.com
Mobile:+86-15972186287(Whatsapp & Wechat)
