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SW61 Single Pole Double Throw
(Part of the SW60 Series)
80A
Application
Interrupted
Uninterrupted
Thermal Current Rating (Ith)
80A
Intermittent Current Rating:
30% Duty
145A
40% Duty
125A
50% Duty
115A
60% Duty
105A
70% Duty
The SW61 is a miniature series single pole, free standing, compact
contactor. It is designed to fill the gap between 30 ampere relays and
100 ampere contactors. Devised for both interrupted and uninterrupted
loads, the SW61 is suitable for switching Resistive, Capacitive and
Inductive loads. Typical applications include switching small traction
motors, hydraulic power packs and small electric winch motors.
95A
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Rated Fault Current Breaking Capacity (Icn) 5ms Time Constant:
(in accordance with UL583*)
SW61
Interrupted current - opening and closing on load with frequent
switching (results in increased contact resistance).
Uninterrupted current - no or infrequent load switching requirements
(maintains a lower contact resistance).
400A at 48V D.C.
SW61B
400A at 96V D.C.
Rated Fault Current Breaking Capacity (Icn) Resistive Load:
(in accordance with UL508*)
SW61
120A at 60V D.C.
SW61B
120A at 96V D.C.
Maximum Recommended Contact Voltages (Ue):
SW61
48V D.C.
SW61B
60V D.C.
The SW61 features single pole, double breaking main contacts with silver
alloy tips, which are weld resistant, hard wearing and have excellent
conductivity. The SW61 has M6 stud main terminals and 6.3mm spade
coil connections. It can be mounted via M4 tapped holes or mounting
brackets, either supplied fitted, or as separate items. Mounting can be on
the side or base of the contactor.
96V D.C.
‡
Typical Voltage Drop per pole
across New Contacts at 80A
<40mV
Mechanical M.T.B.F
SW61
Dimensions in mm [inches]
Enclosed top cover standard when blowouts not fitted
>3 x 106
Coil Voltage Available (Us)
(Rectifier board required for A.C.)
From 6 to 130V D.C.
Coil Power Dissipation:
Highly Intermittent Rated Types
14 - 21 Watts
Intermittently Rated types
10 - 14 Watts
Prolonged Rated Types
7 - 10 Watts
Continuously Rated Types
5 - 7 Watts
Maximum Pull-In Voltage (Coil at 20˚ C) Guideline:
Highly Intermittent Rated types
(Max 25% Duty Cycle)
60% Us
Intermittently Rated types
(Max 70% Duty Cycle)
60% Us
Prolonged Operation
(Max 90% Duty Cycle)
60% Us
Continuously Rated Types
(100% Duty Cycle)
66% Us
Drop-Out Voltage Range
10 - 25% Us
Typical Pull-In Time
15ms
Typical Drop-Out Time (N/O Contacts to Open):
Without Suppression
6ms
With Diode Suppression
35ms
With Diode and Resistor
(Subject to resistance value)
‡
8 - 20ms
Typical Main Contactor Changeover time:
SW61 Available Options
SW61 Contactor Performance
6ms
Normally Open to Normally Closed
4ms
900
Typical Contact Bounce Period
3ms
800
Operating Ambient Temperature
- 40˚C to + 60˚C
700
Time (Seconds)
Normally Closed to Normally Open
Guideline Contactor Weight:
SW61
230 gms
With Auxiliary
+ 20 gms
With Blowouts
+ 50 gms
Auxiliary Details
5A
300
Advised Connection Sizes for Maximum Continuous Current
Contact Performance Key:
Interrupted and
Uninterrupted Current
52mm2 [0.08inch2]
Rated suitable for Application
= Interrupted
= Uninterrupted
Note: Where applicable values shown are at 20˚C
* Please check our web site for product UL status
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v1-06-13
Performance data provided should be used as a guide only. Some de-rating or variation
from figures may be necessary according to application.
Thermal current ratings stated are dependant upon the size of conductor being used
For further technical advice email: technical@albrightinternational.com
Albright reserve the right to change data without prior notice
0
40
0
35
0
30
0
0.25A at 240V D.C.
25
0.25A at 240V D.C.
0
0.5A at 120V D.C.
20
0.5A at 120V D.C.
0
1A at 48V D.C.
○
●
Environmentally Protected IP66
Current (Amperes)
SW61A
B
X
EE Type (Steel Shroud)
X
M
Contacts
Large Tips
Connection Diagram
A
C
X
Closed Contact Housing‡
15
5A at 24V D.C.
1A at 60V D.C.
0
○
Magnetic Latching† (Not fail safe)
0
5A at 24V D.C.
0
X
Armature Cap
Mounting Brackets
(See Stud Contactor Range Catalogue)
400
10
SW61C
Cable
Magnetic Blowouts - High Powered†
500
50
SW61A
Copper busbar
Magnetic Blowouts†
Figures are for guideline
purposes only
600
100
Auxiliary Contact Switching Capabilities (Resistive Load):
Suffix
○
○
○
Auxiliary Contacts - V4
200
Auxiliary Thermal Current Rating
Key:
General
Auxiliary Contacts
X
Textured Tips
X
Silver Plating
X
Coil
SW61C
AC Rectifier Board (Fitted)
X
Coil Suppression†
○
Flying Leads
X
Manual Override Operation
X
M4 Stud Terminals
○
M5 Terminal Board
X
Vacuum Impregnation
Key: Optional
○
Standard
X
●
Not Available X
†
Connections become polarity sensitive
‡
Enclosed top cover standard when blowouts not fitted
Albright International Ltd, Evingar Trading Estate, Ardglen Road, Whitchurch, Hampshire, RG28 +44 UK
Albright International, 125 Red Lion Road, Surbiton, Surrey KT6 7QS, England,Tel: +44 (0) 20 8390 5357, Fax:7BB,(0) 20 8390 1927
Tel: sales@albrightinternational.com or technical@albrightinternational.com Web 890030, Fax: +44 (0)1256 890043
E-mail: +44 (0)1256 893060, Fax: +44 (0)1256 893562, Dedicated Sales Tel: +44 (0)1256 Site: www.albrightinternational.com
E-mail: sales@albrightinternational.com or technical@albrightinternational.com Web Site: www.albrightinternational.com
Copyright © 2010 Albright International Ltd
Copyright © 2013 Albright International LTD
SW61
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