Q6: What cable should be used for wiring?

A: Use RVV4*0.75SQMM or 2*0.75SQMM cable. Do not use network or telephone cables - these cause interference, low volume, or silent ringing.

Q7: What are the common fault signs?

A: Replace or check wiring if you notice: no response when pressing call button, unclear voice, continuous ringing, or no sound at all. First check power supply and cable connections.

Q8: Is this OEM or aftermarket?

A: Genuine Deling original - manufactured by Guangdong Deling Electronic Technology Co., Ltd., a leading elevator intercom supplier since 2000.

Deling Nbt12 Nkt12 Elevator Cabin Inner Auxiliary Intercom Five-Way

Name: Deling Nbt12 Nkt12 Elevator Cabin Inner Auxiliary Intercom Five-Way
Brand: Tibang Biotech (Hubei) Co., Ltd.
SKU: 2321312035

Hubei, ChinaTibang Biotech (Hubei) Co., Ltd.

US$3.00

10 Pieces

Product specifications

NBT12

Sample price:US$5.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

12 Months Warranty

Warranty

Two Years of Warranty

Model NO.

Elevator Cabin Inner Intercom

Type

Elevator Door System

Suitable for

Elevator

Load Capacity

1000kg

Persons

11-20

Speed

>3.50m/s

Drive Mode

Item

Elevator Intercom Sub-Station

Hazardous Chemical

Key Features

Elevator Car and Counterweight Guidance Systems Us

Transport Package

Standard Export Packing Box

Trademark

Deling

Origin

China

Key features

Genuine Deling Original 100% authentic Deling NBT12 / NKT12 built-in auxiliary intercom - not a generic replacement

Dual System Options Available in 2-wire (NBT12) and 4-wire (NKT12) configurations - choose based on your existing wiring

Five-Way Intercom Ready Enables communication between car cabin, car top, pit, machine room, and duty room - full compliance with elevator safety standardse

Clear Voice Quality Noise voltage less than 10mV, ring volume more than 70dB - crystal-clear audio even in high-noise hoistway environments

Wide Compatibility Direct replacement for Mitsubishi MCTC-MI-B1 and other major elevator intercom systems

Industrial-Grade Anti-Interference 4-wire system uses independent transmit/receive channels to suppress crosstalk; 2-wire system maintains 32dB+ SNR at 50m cable distance

Rugged Construction Plastic housing with built-in acoustic sponge - designed for continuous operation in elevator cabin environments

Company profile

Importers and Exporters

Tibang Biotech (Hubei) Co., Ltd.

Hubei, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 0 Year CertifiedNearest Port: Wuhan Port, Shanghai Port, Shenzhen Port, Guangzhou Port, Ningbo PortAverage Response Time: ≤0.14h

About Our Factory & Business Background

AddressPhoenix Industrial Park, No. 52, Liufang Avenue, East Lake New Technology Development Zone, Wuhan, Hubei, China

Plant Area80 square meters

Number of Employees14

Registered Capital588,800 RMB

Terms of PaymentLC, T/T, D/P, PayPal, Western Union, Small-amount payment

International Commercial Terms(Incoterms)FOB, CIF, EXW, CFR

Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays

Minimum Order Quantity2 L

Supply Chain Partners2

Our Production Capability & Technical Expertise

Main ProductsElevator Wire Rope, Elevator Wire Rope Lubricant

QA/QC inspectors1 people

Inspection Type for Finished Products100% inspection(Visual inspection & Function inspection)

Inspection Method for Finished ProductsFinished product checked by packing staff

R&D Engineers1 people

Traceability of Raw MaterialsYes

Test Reports for Raw MaterialsOthers

Our Industry Experience & Global Business Record

Year of Establishment2024-04-08

Main MarketsDomestic

Repeat Buyers Choice80%~100%

Number of Foreign Trading Staff2

Overseas Agent/BranchNo

New Products Launched in Last yearNo

Our Certifications, Standards & Industry Recognition

Product CertificationOthers

Cooperated with Fortune 500No

Product Q&A

Q:Q1: What is the difference between NBT12 (2-wire) and NKT12 (4-wire)?

A: NBT12 uses a 2-wire system where power and signal share the same pair. NKT12 uses a 4-wire system with separate transmit/receive channels, providing better anti-interference performance. Both achieve the same five-way intercom function - choose based on your existing wiring.

Q:Q2: Which elevator brands is this compatible with?

A: Directly compatible with Deling systems and can replace Mitsubishi MCTC-MI-B1. Commonly used in passenger elevators across major brands.

Q:Q3: What are the power specifications?

A: Working voltage: DC12V. Ring volume: above 70dB. Noise voltage: below 10mV. Operating temperature: -20C to 70C. Relative humidity: 20%~95%.

Q:Q4: Where is this built-in auxiliary intercom installed?

A: Installed inside the elevator car cabin (car operating panel). It works with the main intercom unit in the duty room or machine room. External sub-stations (model B1) are used for car top and pit.

Q:Q5: Do I need a separate power supply?

A: Yes - a DC12V emergency power supply is required. Deling model RKP220/12D (AC220V input, DC12V output) is the standard matching power supply.