Yongsung
Cam Switch
To prevent electric shock, it applies terminal protect cover.
- Switchgear Accessories
Yongsung
Test Terminal Block
CTT and PTT, 3P or 4P, AC 250V 10A. CTT is the Circuit Opening Prevention Type for Current Transformer testing; PTT for Potential Transformer testing.
Datasheet available on request. Mention it in your quote notes.
Key specifications
| Series | YS CTT (current) and YS PTT (potential/voltage) test terminal blocks |
|---|---|
| Models | YS CTT-03S, CTT-04S, PTT-03S, PTT-04S (suffix S = set; P = plug, C = consent/receptacle) |
| Poles | 3P or 4P |
| Rating | AC 250V 10A |
| Insulation resistance | above 100 MOhm (DC 500V megger) |
| Withstand voltage | AC 2,500V for 1 min |
| CTT construction | auxiliary contactor keeps the CT circuit closed while the test plug is inserted, so the circuit never opens |
| Keying | current and voltage parts are separate, so a plug cannot go into the wrong type |
| Contacts | spring-loaded; M4 terminal screws |
| Material | ABS resin moulding (good insulation and impact resistance) |
| Mounting | panel mounting, panel thickness 0.8-3 mm; body width 88 mm (3P) / 106.8 mm (4P) |
| Certification | CE |
From the manufacturer's datasheet. Ratings vary by model, so our engineers confirm the exact specification with your quotation.
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