CTB plug-in current transformer
The time-saving option
Description:
This is the world’s first current transformer series to feature screwless connection technology – with the “Cage Clamp®” spring-type terminal. An innovative and time-saving connection option for solid and flexible wires – making wire end ferrules obsolete. The entire series is also UL-certified. Certificate number: 20100426-E336996. The devices are designed for max. operating voltages of 1.2 kV; they can therefore be used in 690 V networks. All CTB current transformers are produced in compliance with or exceed the provisions of the defined technical requirements from DIN EN 61869-1/2, VDE 0414-9-1/2 and DIN 42600. Optionally, the supply of primary conductor bars (electrolytic copper, nickel-plated) corresponding to the bar window, including screws DIN 933, complete with nuts, washers and lock washers for mounting in busbars or similar is possible.
Description:
This is the world’s first current transformer series to feature screwless connection technology – with the “Cage Clamp®” spring-type terminal. An innovative and time-saving connection option for solid and flexible wires – making wire end ferrules obsolete. The entire series is also UL-certified. Certificate number: 20100426-E336996. The devices are designed for max. operating voltages of 1.2 kV; they can therefore be used in 690 V networks. All CTB current transformers are produced in compliance with or exceed the provisions of the defined technical requirements from DIN EN 61869-1/2, VDE 0414-9-1/2 and DIN 42600. Optionally, the supply of primary conductor bars (electrolytic copper, nickel-plated) corresponding to the bar window, including screws DIN 933, complete with nuts, washers and lock washers for mounting in busbars or similar is possible.
| To the product | Rail 1: | Rail 2: | Round conductors: | Width: | Current range: | Type: |
|---|---|---|---|---|---|---|
| 30 x 10 mm | 25 x 12 mm | 25,7 mm | 60 mm | 50 ... 750 A | CTB 31.35 | |
| 40 x 10 mm | 30 x 15 mm | 31,8 mm | 70 mm | 75 ... 1000 A | CTB 41.35 | |
| 50 x 12 mm | 40 x 30 mm | 43,7 mm | 85 mm | 100 ... 1250 A | CTB 51.35 | |
| 63 x 10 mm | 50 x 30 mm | 43,7 mm | 95 mm | 200 ... 1600 A | CTB 61.35 | |
| 80 x 10 mm | 60 x 30 mm | 54,7 mm | 120 mm | 400 ... 2000 A | CTB 81.35 | |
| 100 x 10 mm | 80 x 30 mm | 70 mm | 130 mm | 400 ... 2500 A | CTB 101.35 |
