HP
 412
Contact rating and expected life For DC load type
Voltage 24 V DC 125 V DC
Expected life 
(min. operations)
Electrical 
life
Load Resistive (cos ϕ 
]
 1) Inductive (cos ϕ 
]
 0.4) Resistive (cos ϕ 
]
 1) Inductive (cos ϕ 
]
 0.4)
Current
—7 A— —2
 × 
10
5
7.5 A 5 A 0.5 A 0.4 A 5 × 10
5
5 A 3 A 0.3 A 0.2 A 1 × 10
6
1A 0.6 A 0.1 A 0.06 A 2 × 10
6
Mechanical life 1 × 10
7
Life curve
Notes:
1. F or DC inductive loads, use an arc suppressing circuit.
2. When used under a DC load operating at 
high repetition rate with considerable arcing, 
corrosion of the contacts and/or the contact 
blades is likely to occur. When using the relay 
under conditions of high temperature, humidity 
or high repetition rate, it is suggested that the 
relay cover be removed to facilitate extended 
operation.
10
0
100
200
300
400
500
600
700
800
900
1,000
Load current, A
Operations, ×10
4
125 V AC cosϕ = 1
5
2
5
0
V
A
C
c
o
s
ϕ
=
1
Mechanical life 
more than 10,000,000 
operations
TYPICAL APPLICATIONS
HP relays enjoy wide use in v arious applications, particularly in automation controls and remote controls. 
Applications include: 
Industrial machinery
Machine tool 
Food processing packing machines 
Office equipment 
Coin operate devices 
Home appliances
Transportation 
Communication and measuring devices 
Amusement devices
ORDERING INFORMATION
Ex.  HP 3
Contact arrangement
2: 2 Form C 
3: 3 Form C 
4: 4 Form C
(Notes) 1. For UL/CSA or VDE recognized types, add suffix UL/CSA or VDE (HP2-TM type VDE application under way)
2. Standard packing Carton: 50 pcs. Case: 200 pcs.
3. UL/CSA approved type is standard.
Nil: Standard plug-in terminal 
M: Direct mounting (3 Form C only) 
TM: Top mounting (2 Form C only) 
L: Lamp wired, standard plug-in terminal
AC 6, 12, 24, 48, 
115, 220, 240 V 
DC 6, 12, 24, 48, 
110 V
Terminal Coil voltage
M AC240V
TYPES AND COIL DATA
1. Standard plug-in terminal type (without lamp wired)
DC TYPES at 20 ° C 68 ° F
Type Part No.
Nominal coil 
voltage, V DC
Pick-up 
voltage, 
V DC (max.)
Drop-out 
voltage, 
V DC (min.)
Max. 
allowable 
voltage, V DC
Coil 
resistance, 
 Ω ( ± 
10%)
Nominal coil 
current, mA
Nominal 
operating 
power, W
2 Form C
HP2-DC6V 6 4.8 0.9 6.6 25 240 1.5 
HP2-DC12V 12 9.6 1.8 13.2 110 109 1.3 
HP2-DC24V 24 19.2 3.6 26.4 440 54.5 1.3 
HP2-DC48V 48 38.4 7.2 52.8 1,800 26.7 1.3 
HP2-DC110V 110 88 16.5 121 7,300 15.0 1.7
3 Form C
HP3-DC6V 6 4.8 0.9 6.6 24 250 1.5 
HP3-DC12V 12 9.6 1.8 13.2 100 120 1.4 
HP3-DC24V 24 19.2 3.6 26.4 400 60 1.4 
HP3-DC48V 48 38.4 7.2 52.8 1,560 31 1.5 
HP3-DC110V 110 88 16.5 121 7,450 14.9 1.6
4 Form C
HP4-DC6V 6 4.8 0.9 6.6 22 273 1.6 
HP4-DC12V 12 9.6 1.8 13.2 95 127 1.5 
HP4-DC24V 24 19.2 3.6 26.4 380 63 1.5 
HP4-DC48V 48 38.4 7.2 52.8 1,500 32 1.5 
HP4-DC110V 110 88 16.5 121 7,000 15.7 1.7