Siemens 3WL Air Circuit Breaker
How to consider your ACB design ?
Step 1 : with ETU?
Step 2 : with Ground-Fault Protection?
Step 3 : Horizontal or Vertical connection?
General data
- ■ Standard: IEC 60947-2
- ■ Rating: 630A to 6300A (AC), 1000A to 4000A (DC)
- ■ Version: Fixed-Mounted Version or Withdrawable Version
- ■ Pole: 3 Pole or 4 Pole
- ■ Breaking Capacity (415V): 55kA (N Class) or 66kA (S Class) or 100kA (H Class)
- ■ STWC (Icw): 42kA 1s (N Class) or 50kA 1 s (S Class) or 80kA 1 s (H Class)
- ■ Utilization Class: Class B
- ■ Electronic Protection Release: None or LI or LSI or LSIN or LSIG or LSING
- ■ Charging Mechanism: Hand Spring Charger or Motorized Charger
- ■ Key Interlock: CES Key or Profalux Key or Castell Key
- ■ Busbar Flange Connection: Horizontal or Vertical or Front-Access
- ■ Accessories: Shunt Release, Closing Solenoid, Padlock, Door Lock, etc.
i/ Without Eletctronic Trip Unit (ETU)
- Horizontal Main Circuit Connection
- Vertical Main Circuit Connection
ii/ With Electronic Trip Unit (ETU) - Without Ground-Fault Protection
- ETU15B Horizontal Main Circuit Connection (LI function)
- ETU15B Vertical Main Circuit Connection (LI function)
iii/ With Electronic Trip Unit (ETU) - With Ground-Fault Protection
- ETU27B Horizontal Main Circuit Connection (LSING function)
- ETU27B Vertical Main Circuit Connection (LSING function)
| Type | In(A) | Size | Icu(kA) | Fixed | Drawout | ||
| 3WL1106 | 630 | I OR II | 55 OR 66 | 3 Pole | 4 Pole | 3 Pole | 4 Pole |
| 3WL1108 | 800 | I OR II | 55 OR 66 | 3 Pole | 4 Pole | 3 Pole | 4 Pole |
| 3WL1110 | 1000 | I OR II | 55 OR 66 | 3 Pole | 4 Pole | 3 Pole | 4 Pole |
| 3WL1112 | 1250 | I OR II | 55 OR 66 | 3 Pole | 4 Pole | 3 Pole | 4 Pole |
| 3WL1116 | 1600 | I OR II | 55 OR 66 | 3 Pole | 4 Pole | 3 Pole | 4 Pole |
| 3WL1120 | 2000 | I OR II | 55 OR 66 | 3 Pole | 4 Pole | 3 Pole | 4 Pole |
Dimension of ACB
| Size I | ||
| Fixed-mounted | 3 Pole | 320mm(W) x 434mm(H) x 291mm (D) |
| 4 Pole | 410mm(W) x 434mm(H) x 291mm (D) | |
| Withdraw | 3 Pole | 320mm(W) x 465.5mm(H) x 471mm (D) |
| 4 Pole | 320mm(W) x 465.5mm(H) x 471mm (D) | |
| Size II | ||
| Fixed-mounted | 3 Pole | 460mm(W) x 434mm(H) x 291mm (D) |
| 4 Pole | 590mm(W) x 434mm(H) x 291mm (D) | |
| Withdraw | 3 Pole |
460mm(W) x 465.5mm(H) x 471mm (D) |
590mm(W) x 465.5mm(H) x 471mm (D)
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