HAC1 Crydom Co., HAC1 Datasheet - Page 2

• Manufacturer Part Number: HAC1
• Description: SWITCH EXTERNAL AUXILIARY CNTCT
• Manufacturer: Crydom Co.

Specifications of HAC1

• Relay Terminals: Quick Connect
• Contact Current Ac Max: 5A
• Contact Voltage Ac Max: 600V
• No. Of Poles: 1
• Contact Configuration: SPDT-1NO / 1NC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 3RHP Series Solid State Contactor
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

INTRODUCTION
Mercury Contactors offer high switching capacity and long life combined with relatively low cost.
Traditional EMR Contactors provide low cost but with somewhat limited life expectancy and
certain switching transient issues. Solid State Contactors offer superior life expectancy and no
transient issues, but are relatively more expensive and require an external heat sink in higher
power applications or elevated ambient temperature environments.
Figure 2 shows a simplified comparison of key attributes for each type of switching technology
where 100% equals best available performance of each in typical AC contactor applications.
A quick review of Figure 2 shows that Solid State Contactors are superior in 3 of 5 categories
where as Mercury Contactors and Mechanical Contactors are superior in no more than one
category each. Heat generation/dissipation and cost are the Solid State Contactors limitations
in comparison to the other contactor types. Reducing heat generation and cost could therefore
place the Solid State Contactor in a significantly preferred position relative to the other two AC
Contactor switching technologies.
Combining Solid State switching technology with EMR switching technology, thus creating a
Hybrid Solid State Contactor, provides a cost effective means of addressing both the known
limitations of SSRs as well as EMRs. Solid State Switching provides a nearly unlimited life
expectancy with zero transients during make and break transitions, while the EMR contacts
eliminate nearly all of the thermal heating associated with SSRs during load current conduction,
thus producing a superior performing contactor.
100
80
60
40
20
Figure 2 - Attributes of commercially available AC switching technologies.
0
Life Exp
Transient
Crydom Inc.
2320 Paseo de las Americas, Suite 201
San Diego, CA, 92154
Tel: [phone]
Fax: [phone]
E-Mail: [e-mail]
Web: www.crydom.com
Enviro
Thermal
Cost
MD Contactor
EM Contactor
SS Contactor
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