Notes: 1)
HE721B - Exceeding recommended voltage may cause contact reclosure.
2)
Optional external magnetic shield not available on Form B relays.
Table 3 HE700 Series Miniature Relay CoilCharacteristics@25˚C.
Contact Electrical & Dimensions Part Nominal Coil Must Must Maximum Top View 2,54 mm, 0.1 in. Grid
Form Operating Number Coil Voltage Resistance Operate Release Coil Voltage Dot on Case: Pin 1
Characteristics Vdc ± 10% Ohms Vdc Vdc Vdc Numbers not printed on case.
1A HE721A0500 5 500 3.75 0.5 12
SPST-NO See Table 2 Figure 1 HE721A1200 12 1000 8.0 1.0 31
Column 1
HE721A2400 24 2150 16.0 2.0 46
See Note 1, 2
1B HE721B0500 5 500 3.75 0.5 6.5
SPST-NC See Table 2 Figure 1 HE721B1200 12 500 9.0 1.0 14
Column 4
HE721B2400 24 2150 18.0 2.0 28
1C HE721C0500 5 200 3.75 0.5 14
SPDT-CO See Table 2 Figure 1 HE721C1200 12 500 8.0 1.0 22
Column 2
HE721C2400 24 2000 16.0 2.0 44
1C HE721E0500 5 200 3.75 0.5 14
SPDT-CO See Table 2 Figure 1 HE721E1200 12 500 8.0 1.0 22
Column 2
HE721E2400 24 2000 16.0 2.0 44
1C HE721R0500 5 200 3.75 0.5 14
SPDT-CO See Table 2 Figure 1 HE721R1200 12 500 8.0 1.0 22
Column 2
HE721R2400 24 2000 16.0 2.0 44
2A HE722A0500 5 200 3.75 0.5 12
DPST-NO See Table 2 Figure 1 HE722A1200 12 500 8.0 1.0 22
Column 1
HE722A2400 24 2150 16.0 2.0 46
1A HE751A0500 5 500 3.75 0.5 12
SPST-NO See Table 2 Figure 2 HE751A1200 12 1000 8.0 1.0 31
High Voltage
C
olumn 3
HE751A2400 24 2150 16.0 2.0 46
Table 2 HE700 Series
Recognised File #E47258
Electrical and Operating Characteristics @ 25˚C.
Column Number 1 2 3 4
Contact Type
Relay Types HE721,HE722 HE721C, E, R HE751 HE721
CONTACT RATINGS
Contact Hamlin for
specific load/life details
Power, Switching
Voltage, Switching
Current, Switching
Current, Carry
Watt - max.
Vdc - max.
A - max.
A - max.
VOLTAGE HOLD-OFF Across Open Contacts
Contacts to Coil
Coil to E. Shield
Between Isolated Terminals
Vdc - min.
Vac - min.
Vac - min.
Vac - min.
RESISTANCE Contact, Initial
Insulation Across Contacts
Insulation Between Isolated Terminals
Ωmax.
Ωmin.
Ωmin.
TIMING Operate Time
Release Time
ms - max.
ms - max.
ENVIRONMENTAL Temperature, Operating
Temperature, Storage
Vibration Resistance
Shock Resistance
°C
°C
G - max. 10-2000 Hz.
G - max. 11 ms ½ sine
-40 to +85
-40 to +105
20
50
-40 to +85
-40 to +105
20
50
-20 to +85
-40 to +105
20
50
-40 to +85
-40 to +105
20
50
Hamlin USA
Tel: +1 920 648 3000 •Fax: +1 920 648 3001 •Email: sales.us@hamlin.com
Hamlin Europe
Tel: +44 (0)1603 257700 •Fax: +44 (0)1603 257702 •Email: sales.uk@hamlin.com
Hamlin China
Tel: +86 (0) 512 69365 800 •Fax: +86 (0) 512 69365 811 •Email: sales.cn@hamlin.com
DRGNo: HE700 REV : AA Date: 7/02/12 DCR: B8832