Current transformer CTBC17

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Overview
The CTBC17 is an all‑current measuring current transformer for detection and monitoring of residual currents in AC, DC and 3(N)AC systems. Available as a PCB-mounted variant for vertical installation and as a cable-connected variant. The cable variant connects to evaluators (e.g. CC613, RCMB4xx) via a six-core cable. RCMB104 and RDC104 evaluators are compatible with PCB variants. Integrated magnetic shielding reduces interference from external magnetic fields and high load currents.

Key features

• Suitable for AC/DC sensitive residual current measurement and monitoring in charging modes 2 and 3 (AC charging)
• Reliable detection of AC and DC residual currents according to IEC 62752 and IEC 62955
• Robust, compact design with 17 mm internal diameter for larger conductor cross-sections
• Cost-optimised PCB variant for soldering or screwing to the PCB
• Cable variants available in multiple standard lengths
• Integrated magnetic shielding to prevent external interference

Compatibility / To be used with

• Charge controller CC613
• AC/DC sensitive residual current monitoring module RCMB104
• DC sensitive residual current monitoring module RDC104-4

Variants (Sensor | Variant | Art. No.)
CTBC17P-03 | PCB mounting | B98080070
CTBC17P-03-K0325 | Cable variant (length 325 mm) | B98080071
CTBC17P-04 | PCB mounting | B98080074
CTBC17P-13 | PCB mounting | B98080077
CTBC17P-14 | PCB mounting | B98080076

Cable types (Type | Cable incl. clip enclosure cable length (mm) | Art. No.)
CTBC17 cable1470 | 1470 ±30 | B98080542
CTBC17 cable600 | 600 ±25 | B98080543
CTBC17 cable325 | 325 ±25 | B98080541
CTBC17 cable180 | 180 ±25 | B98080540

Downloads available
Datasheet, user manuals and product flyer available for CTBC17 (technical datasheet, user manuals, product flyer, CTBC17P manual).

Technical specifications

• Application: AC, DC and 3(N)AC systems, earthed and unearthed
• Sensitivity: AC/DC sensitive residual current measurement and monitoring according to IEC 62752 and IEC 62955; suitable for DC residual current monitoring to protect type A RCDs when used with listed evaluators
• Mounting: PCB mounting variant and cable-connected variant (six-core cable)
• Internal diameter: 17 mm
• Shielding: Integrated magnetic field shielding against external magnetic interference and high load currents
• Standards / Applications: IEC 62020, IEC 62752, IEC 61851-1, IEC 62955; UL2231 applicable for CTBC17P-0x variants