32 S&C Instruction Sheet 695-510
Appendix D
Table 8. Optional Features—Continued
Item
Suffix to be Added to
Switchgear
Catalog Number
Applicable to Models
Key interlock.
①
Locks the load-interrupter switch or
fault interrupter in the Open position
Way 1 -X1
All
Way 2 -X2
Way 3 -X3
Way 4 -X4
Way 5 -X5
Way 6 -X6
External trip provisions.
②
Allow tripping of the fault
interrupters using a trip signal from a remote location
or an external relay. Requires a user-furnished 110–
120-Vac, 50/60-Hz control power source
In addition to standard
overcurrent control for
all fault interrupters
-R31
101, 201, 321, 431, 541, 651
312, 422, 532, 642
303, 413, 523, 633
404, 514, 624
505, 615
606
In lieu of standard
overcurrent control
and current
transformers for all
fault interrupters
-R41
101, 201, 321, 431, 541, 651
312, 422, 532, 642
303, 413, 523, 633
404, 514, 624
505, 615
606
External trip provisions.
②
Allow tripping of the fault
interrupters using a trip signal from a remote location
or an external relay. Requires a user-furnished 220–
240-Vac, 50/60-Hz control power source
In addition to standard
overcurrent control for
all fault interrupters
-R33
101, 201, 321, 431, 541, 651
312, 422, 532, 642
303, 413, 523, 633
404, 514, 624
505, 615
606
In lieu of standard
overcurrent control
and current
transformers for all
fault interrupters
-R43
101, 201, 321, 431, 541, 651
312, 422, 532, 642
303, 413, 523, 633
404, 514, 624
505, 615
606
Alternate-language labels
Spanish -L51
All
Portuguese -L52
French -L53
Chinese -L54
Arabic -L55
International crating. Wood products used in packaging are hardwood or
certified by the supplier to be “heat-treated” (kiln-dried) to a core temperature of
133°F (56°C) for a minimum of 30minutes
-L71
110, 101
210, 201
303, 312, 321, 330
404, 413, 422, 431, 440
505, 514, 523, 532, 541, 550
606, 615, 624, 633, 642, 651, 660
①
For Models 210 and 201, specify key interlock on Way 1 only (catalog
number suffix “-X1”).
②
The user-furnished trip-initiating signal must be a momentary
contact. For applications requiring the use of a latching contact, refer to the
nearest S&C Sales Office for assistance.
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