Circuit breaker accessory Rittal 9345.614 — CB device adapter 250A 4-pole, bottom cable outlet

Rittal 9345.614 is a circuit breaker accessory serving as a CB device adapter rated at 250 A with a 4‑pole configuration and bottom cable outlet. It is intended to be fitted to compatible Rittal circuit breaker modules to provide a secure, compact connection and a defined cable exit direction for power and control conductors inside electrical enclosures, switchgear and industrial distribution panels.

Advantages

The adapter offers a robust mechanical interface that supports reliable electrical connections and orderly cable routing through the bottom outlet. Its 4‑pole design allows easy integration of three-phase plus neutral circuits or multi-pole protection schemes. The component is designed for straightforward mounting and aligns with the dimensional and functional requirements of Rittal circuit breaker systems, reducing installation time and helping maintain a neat internal layout.

Suitable for

• Industrial control panels and switchgear installations
• Electrical enclosures where bottom cable exit is required
• Three-phase installations with neutral and multi-pole protection setups
• Retrofit or replacement of compatible circuit breaker adapter interfaces

When it may not be suitable

This adapter is intended for use only with compatible Rittal circuit breaker modules and associated mounting systems; it may not fit or function correctly with non‑compatible brands or non-matching breaker geometries. For applications requiring integrated auxiliary contacts, electronic trip units, or current ratings different from 250 A, a different accessory or breaker model may be required.

Key specifications

• Rated current: 250 A
• Number of poles: 4 (suitable for three-phase plus neutral)
• Cable outlet orientation: bottom exit
• Device type: circuit breaker adapter for CB modules

How to use

Mount the adapter onto the designated circuit breaker module according to the assembly instructions of the breaker and enclosure manufacturer. Ensure power is isolated before installation. Align the adapter with the breaker terminals and secure the mechanical fastenings to achieve correct contact pressure. Route conductors through the bottom outlet and make electrical connections using appropriately sized lugs and torque values recommended for 250 A conductors. Verify secure mounting and electrical continuity before re-energising the system.

What to consider before purchase

• Confirm compatibility with the specific Rittal circuit breaker model and panel mounting configuration
• Ensure the 250 A rating and 4‑pole layout meet the system’s electrical load and protection requirements
• Check that a bottom cable outlet fits the enclosure design and cable routing plan
• Verify required conductor cross-sections and terminal torque specifications for safe connections

Usage recommendations

Use the adapter as part of a complete Rittal breaker assembly and follow the breaker manufacturer’s installation and commissioning procedures. Perform connections with properly rated conductors and certified tools, and confirm protective device coordination and clearances in the enclosure before putting the system into service.