
Type 173 Current Transformers |
| Suitable For: | Cable or bar primaries, maximum aperture for |
| circular conductors is 24mm and for bar conductors | |
| 30 x 10mm. Secondary terminals are M5 studs complete | |
| with washers, lockwashers and nuts. Wound primary | |
| types have M5 studs for both secondary and primary | |
| terminals. | |
| Order Example: | A 60/1A 2.5VA class 3 current transformer is a : |
| 173-K1 | |
| A busbar clamp will be provided in place of feet if required. | |

Type 173-5 5A Secondary |
Type 173-1 1A Secondary |
Class 3 |
Class 1 |
Class 0.5 |
||||||||||
| VA (Primary) |
2.5 | 5 | 10 | 15 | 2.5 | 5 | 10 | 15 | 2.5 | 5 | 10 | 15 |
| 1 | A1 | A2 | A3 | A4 | A5 | A6 | A7 | A8 | A9 | A10 | A11 | - |
| 2.5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 | B9 | B10 | B11 | - |
| 5 | C1 | C2 | C3 | C4 | C5 | C6 | C7 | C8 | C9 | C10 | C11 | - |
| 7.5 | D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 | D11 | - |
| 10 | E1 | E2 | E3 | E4 | E5 | E6 | E7 | E8 | E9 | E10 | E11 | - |
| 15 | F1 | F2 | F3 | F4 | F5 | F6 | F7 | F8 | F9 | F10 | F11 | - |
| 20 | G1 | G2 | G3 | G4 | G5 | G6 | G7 | G8 | G9 | G10 | G11 | - |
| 30 | H1 | H2 | H3 | H4 | H5 | H6 | H7 | H8 | H9 | H10 | H11 | - |
| 40 | J1 | - | - | - | - | - | - | - | - | - | - | - |
| 60 | K1 | - | - | - | - | - | - | - | - | - | - | - |
| 80 | L1 | L2 | - | - | - | - | - | - | - | - | - | - |
| 100 | M1 | M2 | - | - | M5 | M6 | - | - | - | - | - | - |
| 150 | N1 | N2 | N3 | - | N5 | N6 | - | - | N9 | - | - | - |
| 200 | R1 | R2 | R3 | R4 | R5 | R6 | - | - | R9 | - | - | - |
| 300 | S1 | S2 | S3 | S4 | S5 | S6 | S7 | S8 | S9 | S10 | S11 | - |
| 400 | T1 | T2 | T3 | T4 | T5 | T6 | T7 | T8 | T9 | T10 | T11 | T12 |
| 500 | V1 | V2 | V3 | V4 | V5 | V6 | V7 | V8 | V9 | V10 | V11 | V12 |
| 600 | W1 | W2 | W3 | W4 | W5 | W6 | W7 | W8 | W9 | W10 | W11 | W12 |
| 800 | X1 | X2 | X3 | X4 | X5 | X6 | X7 | X8 | X9 | X10 | X11 | X12 |
Fixing Details |
| All types have 3 fixing options, base mounting feet, busbar clamps and captive M5 nuts. |
| Mounting Feet: Each current transformer is supplied with 2 push-in feet which can be fitted in any of 8 positions, this allows for a very versatile combination of fixing arrangements. |
| Busbar Clamps: These can be supplied in place of the mounting feet at no extra cost and enable the transformer to be mounted directly to the busbars captive M5 nuts in the base of the transformer. This allows the transformer to be attached to panels where rear access is available. Screw projection should be between 8.5 and 9.5mm. |

Contact sales: sales@hobut.co.uk