Edition: 03 / 00
Multimode Relay MT
2/3pole 10 A, DC- or AC-coil
Contact data
Configuration 2 C/O contacts or 3 C/O contacts
Type of contact single cont. bifurcated cont.
Rated current 10 A 4 A
Rated voltage / max.breaking voltage 250 Vac / 440 Vac
Rated breaking capacity 2500 VA 500 VA
Make current (max. 4 s at duty cycle 10%) 20 A 8 A
Contact material AgNi 90/10
·2C/O or 3 C/O contacts
·Cadmium-free contacts
·DC and AC coils
·Mechanical indicator as standard
·Electrical indicator
·New test system with front operated finger protected
push-to-test button and integral locking test tab
·White write on panel
Applications
Mechanical engineering, plant control
V U C s
Technical data of approved types on request
Contact life
Type Load Operations Standard
MT321 10 A, 250 Vac, C/O contact 1x105VDE 0435
Coil data
Nominal voltage DC coil 6...220 Vdc
AC coil 6...230 Vac
Nominal coil power DC coil typ. 1.2 W
AC coil typ. 2.3 VA
Operate category 1 / a
Coil versions, DC-coil
Coil code Nominal Pull-in Release Coil Coil
standard PD*voltage voltage voltage resistance current
Vdc Vdc Vdc cmA
006 0A6 6 4.5 0.6 32+10% 187.5
012 0B2 12 9.0 1.2 110+10% 109.1
024 0C4 24 18.0 2.4 475++10% 50.5
048 0E8 48 36.0 4.8 2000+10% 24.0
060 0G0 60 45.0 6.0 2850+10% 21.1
110 1B0 110 82.5 11.5 10000+12% 11.0
220 2C0 220 165.0 22.0 40000+15% 5.5
All figures are given for coil without preenergization, at ambient temperature +20°C
*Protection diode PD; standard polarity: 2-pole relays: +2 / -7,
3-pole relays: +2 / -10
F0161-A
Edition: 03 / 00
Insulation
Dielectric strength coil-contacts 2500 Vrms
open contact circuit 1500 Vrms
adjacent contacts 2500 Vrms
Clearance / creepage 2.8 / 4 mm
Insulation to IEC 664/VDE 0110 (1/89)
Voltage rating 250
Pollution degree 3
Overvoltage category III
Insulation to VDE 0110b (2/79) C / 250
Tracking resistance CTI 175
Other data
Flammability class UL V-0
Ambient temperature DC-coil -45...+60 °C
AC-coil -45...+50 °C
Mechanical life >20x106operations
Max. switching rate at rated- / minimum load 20 min-1 /100 min-1
Operate- / release time 12 / 5 ms
Bounce time 4 ms
Vibration resistance N/O / N/C contact >5 / 2 g
Shock resistance (function) N/O / N/C >50 / 10 g
Protection category IP 50
Relay weight 80 g
Packaging unit 25 pcs.
Accessories see accessories MT, page 113
Terminal assignment
Dimensions
Dimensions in mm
View on solder pins
Coil versions, AC-coil
Coil Nominal Pull-in Release Maximum Coil Coil
code voltage voltage voltage voltage resistance current
Vac Vac Vac Vac cmA
006 6 4.8 2.4 7.8 5.3+10% 381.7
012 12 9.6 4.8 15.6 24+10% 182.5
024 24 19.2 9.6 31.2 86++10% 94.2
048 48 38.4 19.2 62.4 345+10% 47.5
060 60 48.0 24.0 78.0 544+10% 37.8
115 115 92.0 46.0 149.5 2000+10% 20.6
230 230 184.0 92.0 299.0 8300++12% 10.1
All figures are given for coil without preenergization, at ambient temperature +20°C
Multimode Relay MT
2/3pole 10 A, DC- or AC-coil
S0168-B
S0296-A
Edition: 03 / 00
Dimensions in mm
Socket system MT 78 740 and MT 78 745
·8/11 pin socket for MT2 / MT3
·Double A2 screw for simple further
connection of coil supply
·Snap-on mounting on DIN-rail
·Screw mounting
·Pozidrive screws with rising clamp terminals
·Logical layout of input-/output connections
·With marking area
U C
Technical Data
Rated current 10 A
Rated voltage 400 Vac
Dielectric strength coil/cont. >3000 Veff
Ambient temperature +80 °C
Protection category IP 20
Protection against accidential
contact meets VBG 4
Mounting/DIN rail DIN50022
Wire cross section 2 x 2,5mm2
Packaging unit 10 Stk.
Retaining clip MR 28 800
MT 78 740 MT socket with screw-type terminals for MT3
MT 78 745 MT socket with screw-type terminals for MT2
LED and Protection modules
Ordering code Type
MTM T0 0A0 Protection diode 1N4007
MTM U0 524 RC-network 24...115 Vac
MTM U0 730 RC-network 230 Vac
MTM L0 024 LED 24 Vac / Vdc
MTM L0 730 LED 230 Vac
LED and Protection Modules
Accessories Multimode Relay MT
F0205-A
F0200-A
F0201-A
F0202-A
S0366-A
Edition: 03 / 00
Technical data - Function modules
Nominal voltage 24...240 Vac / Vac
Mains frequency 48...63 Hz
Precision of time setting +0,5 %
Readiness for repetition w0,5 % or 5 ms
Influence of temperature w0,1 %/°C
Time range switchable 0,05s...240h in 8 ranges
Ambient temperature -25...+55 °C
Function modules
Ordering code Type
MTM Z0 W00 Delay ON
MTM F0 W00 Multifunction
MT Function Modules
Function modules
Function
Delay ON
Delay OFF
single shot leading edge
single shot trailing edge
Delay ON
triggerd by signal contact
single shot
flasher starting with pause
flasher starting with pulse
F0203-A
F0204-A
Accessories Multimode Relay MT
Edition: 03 / 00
U C
Technical data
Rated current 10 A
Rated voltage 400 Vac
Dielectric strength coil/cont. >3500 Vrms
Insulation cat. (VDE 0110b) C / 400 Vac
Tracking resistance CTI 300
Ambient temperature +80 °C
Protection category IP 20
Protection against accidental
contact meets VBG 4
Mounting DIN 50024 / 22
Wire cross section 2 x 2.5 mm2
Terminal torque 0.8 Nm
max. 1.0 Nm
Packaging unit 25 pcs.
MR 78 750 MT3 socket 11pole
MR 78 755 MT2 socket 8pole
Retaining clip MR 28 800
MR 78 710 Socket 8 pole
with solder terminals
MR 78 711 Socket 11 pole
with solder terminals
MR 78 712 Socket 8 pole
with PCB terminals
MR 78 713 Socket 11 pole
with PCB terminals
RN 78 731 Socket 11 pole
with Faston connectors
Dimensions in mm
Technical data MR78710...RN78731
Rated current 10 A
Rated voltage 250 Vac
Dielectric strength coil/cont. >2500 Vrms
Ambient temperature -40...+70 °C
Accessories Multimode Relay MT
F0103-A
F0107-A
F0105-A
F0181-A
F0106-A
F0104-A
S0311-A
S0309-AA
S0309-AC
S0315-A
S0309-AD
S0309-AB
Retaining clip RN 28 611 Retaining clip RN 28 611
Retaining clip MR 28 800
