Chint NKB1 Control & Protective Switching Device

Brand Name:Chint
Place of Origin:China
Model Number:NKB1
Certification:CCC, CE

SKU: 1769741316800913408 Category: Chint Contactor & Overload Relays

Where to Use NKB1 Control and Protective Switching Device (CPS)?

The Chint NKB1 Control & Protective Switching Device is a CPS (Control and Protective Switching Device) that integrates the functions of contactor, circuit breaker, and overload relay into a single, compact unit. Designed for motor control and protection up to 0.1A - 630A, the NKB1 offers significant space savings and simplified wiring for motor control centers, pump stations, HVAC systems, and industrial machinery.

CPS vs Traditional Components - Advantages

Function	Traditional Solution	NKB1 CPS
Switching	Contactor	✓ Integrated
Overload Protection	Thermal Relay	✓ Integrated
Short-Circuit Protection	Circuit Breaker	✓ Integrated
Space Required	~3-4 DIN modules	~1-2 DIN modules only

Key Features

Complete Protection - Overload, short-circuit, phase failure, and phase imbalance
Adjustable Current - Dial setting from 0.1A - 630A
Communication Ready - Optional Modbus interface for remote monitoring
Status Indication - LED indicators for Power, Run, Fault, and Trip

FAQs

Q: When should I choose CPS over separate components?

A: Choose NKB1 CPS when: panel space is limited, you want simplified wiring, cost reduction is important, or you need integrated communication capability. For very large motors (>125A), separate high-capacity components may still be preferred.

Description

Description

Chint original NKB1 series CPS NKB1-45 NKB1-125 3P 16A 45A 80A 125A CHNT Control and Protective Switching Device

Chint NKB1 series control & protective switching device (CPS) is mainly applied to circuit with AC current frequency of
50 Hz or 60Hz, rated operational voltage up to 690V and rated operational current from 1A to 125A used for it is making, carrying and breaking currents under normal conditions, including specified overload conditions and for making, carrying for a specified time and breaking currents under specified abnormal conditions such as those of short-circuits.

NBK1 series CPS is applied to power distribution and motor protection & control of various occasions or systems, e.g. infrastructure, buildings, communications, etc.

Standard: IEC60947-6-2 Multiple function equipment- Control and protective switching devices (or equipment) (CPS).