Specification

Combination Starter Solutions Motor Control Solutions
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Combination Starter Solutions
UL 508 Type A
Construction Type A utilizes four separate devices to achieve the four functions
required for protection. The disconnecting means is achieved via a UL 98 manual
disconnect switch. The motor branch circuit protection is achieved using UL 248
fuses. The motor controller and motor overload relay used are UL 508 contactors
and UL 508 overload relays. Schneider Electric has various products that meet this
construction type, as listed below.
A UL 508 starter is a combination of a UL 508 contactor and a UL 508 overload
relay. As such, the use of UL 508 starters also meets construction Type A.
UL 508 Type B
Construction Type B utilizes an UL 508 motor short circuit protector, which is no
longer commercially available.
UL 508 Type C
Construction Type C utilizes three separate devices to achieve the four functions
required for protection. The disconnecting means and motor branch circuit
protection are achieved using a UL 489 inverse time circuit breaker. The motor
controller and motor overload relay used are UL 508 contactors and UL 508
overload relays. Schneider Electric has various products that meet this
construction type, as listed below.
Table 59 – Disconnecting Means using UL 248 Fuses, a UL 508 Contactor, and UL 508 Overload Relays
UL 98 Manual Disconnect UL 248 Fuses UL 508 Contactor UL 508 Overload Relay
- TeSys LK non-fusible
- Class 9422 non-fusible
- TeSys DF fuse holders
- Type FB fuse holders
- TeSys K
- TeSys D
- TeSys F
- TeSys N
- Type S
- Definite Purpose
- TeSys LR2K bimetal
- TeSys LRD bimetal
- TeSys LR9D electronic
- TeSys LR9F electronic
- TeSys T Motor Management System
- Motor Logic solid state
- TeSys GS fusible switches
1
- Class 9422 fusible switches
1
1
TeSys GS and Class 9422 fusible switches accept UL 248 fuses directly into the switch, eliminating the need for a separate fuse holder.
Table 60 – Disconnecting Means using UL 248 Fuses and a UL 508 Starter
UL 98 Manual Disconnect UL 248 Fuses UL 508 Starter
- TeSys LK non-fusible
- Class 9422 non-fusible
- TeSys DF fuse holders
- Type FB fuse holders
- TeSys N with Motor Logic
- Type S with Motor Logic
- Type S with TeSys T
- Type S with Adapted Bimetal
- Definite Purpose
- TeSys GS fusible switches
1
- Class 9422 fusible switches
1
1
TeSys GS and Class 9422 fusible switches accept UL 248 fuses directly into the switch, eliminating the need for a
separate fuse holder.
Table 61 – Disconnecting Means and Motor Branch Circuit protection using a UL 98 Inverse Time Circuit
Breaker, UL 508 Contactor, and a UL 508 Overload Relay
UL 498 Inverse Time Circuit Breaker UL 508 Contactor UL 508 Overload Relay
- PowerPact thermal-magnetic
- Multi 9
- TeSys K
- TeSys D
- TeSys F
- TeSys N
- Type S
- Definite Purpose
- TeSys LR2K bimetal
- TeSys LRD bimetal
- TeSys LR9D electronic
- TeSys LR9F electronic
- TeSys T Motor Management System
- Motor Logic solid state