Coil Ratings
Open Coils (with Solder or Screw Terminals)
Rated voltage
(V)
Rated current (mA)
Coil
resistance

(Ω)
Must-
operate

voltage
Must-
release

voltage
Max.
volt-

age
Power
consumption

(VA or W)
DP
3P or 4P
DP
3P or
4P
50 Hz
60 Hz
50 Hz
60 Hz
% of rated voltage
Initial
Rated
AC
6
790
655
1,120
950
1.1
0.5
80%
max.
30%
min.

(60 Hz)

25%

min.

(50 Hz)
110%
Approx.
4.1 (DP)

Approx.

6.3 (3P

or 4P)
Approx.
3.5 (DP)

Approx.

5.1 (3P

or 4P)
12
395
325
560
480
4.7
2.0
24
195
160
280
240
19
8.5
50
94
78
134
114
82
36
100/(110)
47
39/45
67
57/66
340
150
200/(220)
23.5
19.5/22.5
33.5
28.5/33
1,540
620
DC
6
340
450
17.5
13.4
70%
max.
10%
min.
Approx. 2.1 (DP)
Approx. 2.7 (3P or

4P)
12
176
220
68
54
24
87
94
275
255
48
41
52
1,180
930
100/110
17/19
22/24.5
5,750
4,500
200/220
8.6/9.5
11/12
23,200
18,000
Note: 1. The rated current and coil resistance are measured at a coil temperature of 23°C with tolerances of +15%/-20% for AC rated current and ±15% for DC coil resistance.
           2. The AC coil resistance values are reference values.

           3. Performance characteristic data are measured at a coil temperature of 23°C.

           4. The maximum voltage is one that is applicable instantaneously to the Relay coil at an ambient temperature of 23°C and not continuously.
Cased Coils (Plug-in Terminals)
The rated current may vary if the Relay has a built-in operating indicator (See note 4.).
Rated
voltage

(V)
Rated current (mA)
Coil
resistance

(Ω)
Coil inductance (H)
Must-
oper-

ate

volt-

age
Must-
re-

lease

volt-

age
Max.
volt-

age
Power
con-

sumption

(VA or W)
DP
3P or 4P
DP
3P
or

4P
DP
3P or 4P
50
Hz
60
Hz
50
Hz
60
Hz
Con-
tact

re-

lease
Con-
tact

oper-

ate
Con-
tact

re-

lease
Con-
tact

oper-

ate
% of rated voltage
Ini-
tial
Rated
AC
6
690
590
975
850
1.1
0.5
0.02
0.02
0.01
0.03
80%
max.
30%
min.

(60

Hz)

25%

min.

(50

Hz)
110%
Ap-
prox.

4.1

(DP)

Ap-

prox.

6.3

(3P

or

4P)
Ap-
prox.

3.5

(DP)

Ap-

prox.

5.1

(3P

or 4P)
12
345
295
490
430
4.7
2.0
0.07
0.01
0.04
0.07
24
170
145
245
210
19
8.5
0.28
0.41
0.18
0.28
50
82
70
117
102
82
36
1.2
1.7
0.75
1.2
100/
(110)
41
35/
40
58.5
51/
58
340
150
4.8
6.7
3
4.5
200/
(220)
20.5
17.5/
20
29
25.5/
29
1,540
620
20
25.6
12
19
DC
6
340
450
17.5
13.4
0.2
0.36
0.23
0.35
70%
max.
10%
min.
Approx. 2.1
(DP)

Approx. 2.7

(3P or 4P)
12
176
220
68
54
0.74
1.0
0.87
1.4
24
87
94
275
255
4.2
5.8
5.6
9.2
48
41
52
1,180
930
20.4
26
27.3
45.5
100/
110
17/19
22/24.5
5,750
4,500
81.6
92.5
61.4
96.5
200/
220
8.6/9.5
11/12
23,200
18,000
340
380
158
250
Note: 1. The rated current and coil resistance are measured at a coil temperature of 23°C with tolerances of +15%/-20% for AC rated current and ±15% for DC coil resistance.
           2. The AC coil resistance and coil inductance values are for reference only.

           3. Performance characteristic data are measured at a coil temperature of 23°C.

           4. The maximum voltage is one that is applicable instantaneously to the Relay coil at an ambient temperature of 23°C and not continuously.

           5. The rated current of a model with a built-in LED indicator at 6, 12, 24, or 50 VAC or 6, 12, 24, or 48 VDC increases by approx. 10 mA due to the current consumption of the LED. The rated current of a model with a built-in neon lamp indicator at 100/(110) or 200/(220) VAC or 100/110 or 200/220 VDC increases by approx. 0.2 mA due to the current consumption of the neon lamp.
Coils (Conforming to Auxiliary Power Relay Specifications)
Rated
voltage

(V)
Rated current
(mA)
Coil
re-

sistance

(Ω)
Coil inductance
(H)
Must-
operate

voltage
Must-
release

voltage
Max.
volt-

age
Opera-
tion

level

(JEC-

174D)
Power
consumption

(VA or W)
50 Hz
60 Hz
Contact
release
Contact
operate
% of rated voltage
Initial
Rated
AC
24
245
210
8.5
0.18
0.28
80% max.
30% min.
(60 Hz)

25% min.

(50 Hz)
110%
B
Hot start

after coil

heated
Approx.
6.3
Approx.
5.1
50
117
102
36
0.75
1.2
100/
(110)
58.5
51/58
150
3
4.5
110
53
46
182
3.6
5.5
115
51
44
210
4
6.2
200/
(220)
29
25.5/29
620
12
19
220
26.5
23
780
15
21
DC
24
94
255
5.6
9.2
70% max.
10% min.
Approx. 2.7
48
52
930
27.3
45.5
100/
110
22/24.5
4,500
61.4
96.5
125
22
5,800
90
130
200/
220
11/12
18,000
158
250
Note: 1. The rated current and coil resistance are measured at a coil temperature of 23°C with tolerances of +15%/-20% for AC rated current and ±15% for DC coil resistance.
           2. The AC coil resistance and coil inductance values are for reference only.

           3. Performance characteristic data are measured at a coil temperature of 23°C.

           4. The maximum voltage is one that is applicable instantaneously to the Relay coil at 23°C and not continuously.
Contact Ratings
Standard Relays
Item
Open Relays
Cased Relays
MM2(B), MM3(B), MM4(B)
MM2P(N, -D), MM3P(N), MM4P(N, -D)
Resistive load
(cosφ = 1)
Inductive load
(cosφ=0.4, L/R=7 ms)
Resistive load
(cosφ = 1)
Inductive load
(cosφ=0.4, L/R=7 ms)
Contact type
Single
Contact material
Ag
Rated load
15 A at 220 VAC
10 A at 24 VDC
7.5 A at 220 VAC
5 A at 24 VDC
Rated carry current
15 A
7.5 A
Max. switching voltage
250 VAC, 250 VDC
250 VAC, 250 VDC
Max. switching current
15 A
7.5 A
Max. switching power
(reference value)
3,300 VA at 240 W
1,700 VA at 120 W
Minimum permissible load
(reference value) *
5 VDC 10 mA
* This value is measured at 60 operations/min.
DC-switching Relays/Built-in Diode Relays
Item
Open Relays
Cased Relays
MM2X(B), MM3X(B), MM4X(B)
MM2XP(-D), MM3XP, MM4XP(-D)
Resistive load
(cosφ = 1)
Inductive load
(L/R=7 ms)
Resistive load
(cosφ = 1)
Inductive load
(L/R=7 ms)
Contact type
Single
Contact material
Ag
Rated load
10 A at 110 VDC
7 A at 110 VDC
7 A at 110 VDC
6 A at 110 VDC
Rated carry current
15 A
7.5 A
Max. switching voltage
250 VAC, 250 VDC
250 VAC, 250 VDC
Max. switching current
15 A
7.5 A
Max. switching power
(reference value)
1,200 W at 20 VA *1
800 W at 20 VA *1
800 W at 20 VA *1
660 W at 20 VA *1
Minimum permissible load
(reference value) *2
5 VDC at 10 mA
Note: 1. When switching DC inductive loads at 125 V or more, an unstable region exists for a contact current of between 0.5 and 2.5 A. The Relay will not turn OFF in this region. Use a contact current of 0.5 A or less when switching 125 VDC or more.
          2. If L/R exceeds 7 ms when switching DC inductive loads, an arc-breaking time of up to 50 ms must be considered in application and the circuit must be designed to ensure that an arc-breaking time of 50 ms is not exceeded.

          3. The switching capacity for an AC load is minute.

*1. Refer to Switching an AC Load with a DC-switching Model ("X" Model) on Data Sheet.

*2. This value is measured at 60 operations/min.
Contacts (Conforming to Auxiliary Power Relay Specifications)
Item
MM4P-JD
MM4XP-JD
Resistive load
Inductive load
(cosΦ = 0.4, L/R = 7 ms)
Resistive load
Inductive load
(cosΦ = 0.4, L/R = 7 ms)
Contact type
Single
Contact material
Ag
Rated load
5 A at 220 VAC, 5 A at 24 VDC
5 A at 110 VDC
Rated carry current
5 A
Max. switching voltage
250 VAC, 250 VDC
Max. switching current
5 A
Max. switching power
(reference value)
1,100 VA, 120 W, 30 W (L/R = 40 ms)
20 VA, 550 W, 40 W (L/R = 40 ms)
Note: 1. A model for DC loads is not in stable operation when switching an inductive load within a operating current range between 0.5 and 2.5 A at a minimum of 125 VDC, where the load cannot be switched.
           2. If L/R exceeds 7 ms when switching DC inductive loads, an arc-breaking time of up to 50 ms must be
considered in application and the circuit must be designed to ensure that an arc-breaking time of 50 ms is not exceeded.
Characteristics
Standard Relays
Item
Open Relays
Cased Relays
Contact resistance *2
25 mΩ max.
50 mΩ max.
Operate time *3
AC: 25 ms max. DC: 50 ms max.
Release time *3
30 ms max. (100 ms max. for Built-in Diode Relays)
Max. operating frequency
Mechanical:7,200 operations/hr
Electrical:1,800 operations/hr (under rated load)
Insulation resistance *4
100 MΩ min. (at 500 VDC)
Dielectric strength
1,500 VAC, 50/60 Hz for 1 min between contacts of same polarity
2,000 VAC, 50/60 Hz for 1 min between contacts of different polarity (and between coil and

contacts)
Vibration resistance
Destruction: 10 to 55 to 10 Hz, 0.75 mm single amplitude (1.5 mm double amplitude)
Malfunction: 10 to 55 to 10 Hz, 0.5 mm single amplitude (1.0 mm double amplitude)
Shock resistance
Destruction: 1,000 m/s2
Malfunction: 100 m/s
2
Endurance
Mechanical: 5,000,000 operations min. (at 7,200 operations/hr)
Electrical: 500,000 operations min. (at 1,800 operations/hr under rated load) *5
Ambient temperature
Operating: -10°C to 55°C (with no icing or condensation)
Ambient humidity
Operating: 5% to 85%
Weight
Standard models: DC-switching models
MM2 approx. 160 g

MM2X approx. 165 g

MM2XP approx. 225 g

MM3 approx. 270 g

MM3X approx. 275 g

MM3XP approx. 395 g

MM4 approx. 300 g

MM4X approx. 310 g

MM4XP approx. 420 g

MM2P approx. 220 g

MM3P approx. 360 g

MM4P approx. 410 g
*1. The data shown above are initial values.
*2. The contact resistance was measured with 1 A at 5 VDC using the voltage drop method.

*3. The operate or release time was measured with the rated voltage imposed with any contact bounce ignored at an ambient temperature of 23°C.

*4. The insulation resistance was measured with a 500-VDC megger applied to the same places as those used for checking the dielectric strength.

*5. The electrical endurance was measured at an ambient temperature of 23°C.
Relays (Conforming to Auxiliary Power Relay Specifications)
Item
Cased Relays
Contact resistance *2
50 mΩ max.
Operate time *3
AC: 25 ms max., DC: 50 ms max.
Release time *3
30 ms max.
Max. operating frequency
Mechanical: 1,800 operations/hr
Electrical: 1,800 operations/hr (under rated load)
Insulation resistance *4
100 MΩ min.
Dielectric strength
Between coil and contact: 2,000 VAC, 50/60 Hz for 1 minute
Between contacts of different polarity: 2,000 VAC, 50/60 Hz for 1 minute

Between contacts of same polarity: 1,500 VAC, 50/60 Hz for 1 minute
Vibration resistance
Destruction: 10 to 55 to 10 Hz, 0.75 mm single amplitude (1.5 mm double amplitude)
Malfunction: 10 to 22 to 10 Hz, 0.5 mm single amplitude (1.0 mm double amplitude)
Shock resistance
Destruction: 300 m/s2
Malfunction: 30 m/s
2
Endurance
Mechanical: 5,000,000 operations min. (at 1,800 operations/hr)
Electrical: 500,000 operations min. (at 1,800 operations/hr with rated load) *5
Error rate (level P)
(Reference value) *6
10 mA at 5 VDC
Ambient temperature
Operating: -10°C to 40°C (with no icing or condensation)
Ambient humidity
Operating: 5% to 85%
Weight
MM4P-JD: approx. 410 g
MM4XP-JD: approx. 420 g
*1. The data shown above are initial values.
*2. The contact resistance was measured with 1 A at 5 VDC using the voltage drop method.

*3. The operate or release time was measured with the rated voltage imposed with any contact bounce ignored at an ambient temperature of 23°C.

*4. The insulation resistance was measured with a 500-VDC megger applied to the same places as those used for checking the dielectric strength.

*5. The electrical endurance was measured at an ambient temperature of 23°C.

*6. This value was measured at a switching frequency of 60 operations per minute.