지멘스 DC 접촉기 3RT1024-1BB40

Model Interpretation and Basic Information

목	세부
완전한 모델	3RT1024-1BB40
제품 시리즈	Siemens SIRIUS 3RT1 Series (단종, 교체 모델: 3RT2024-1BB40)
Structural Specification	3-폴, Size S0, Screw Termination, IP20 Protection Class
코일 전압	DC24V (24 Volt DC)
주요 접점 구성	3 평상시 열림 (3아니요)
애플리케이션 카테고리	AC-3 (Three-Phase Motor Load) 12에이, 5.5kW/400V

Core Parameters of Thermal Current (이)
Thermal Current of Main Contacts

Current Type	Rated Value	적용 조건	비고
AC-1 (Resistive Load) 열전류	40에이	690뷔와, 50/60헤르츠	Maximum allowable current for long-term operation
AC-3 (모터 부하) 정격전류	12에이	400뷔와, 50/60헤르츠	Corresponding to 5.5kW three-phase motor
DC-1 (DC Resistive Load) 열전류	12에이	24DC에서	Long-term operating current for DC circuits
DC-3 (DC Motor Load) 정격전류	8에이	24DC에서	Starting and operating current for DC motors

Thermal Current of DC24V Coil

매개변수	값	Calculation Basis
Rated Coil Power	5.9여	Siemens official data
Coil Thermal Current	0.246에이	I = P/U = 5.9W/24V
코일 저항	대략. 97.5	R = U/I = 24V/0.246A
Coil Pick-Up/Holding Power	5.9W for both	DC coil has the same pick-up and holding power

III. Key Technical Characteristics

Load Adaptation: Suitable for controlling ≤12A resistive load or ≤8A DC motor load in DC24V circuits
작동 온도: -25°C ~ 60°C, adaptable to industrial environments
기계적 수명: 3×10⁷ operations, 전기적 수명 (AC-3): 1×10⁶ 연산
절연 전압: 690다섯, reliable electrical isolation performance
Replacement Models and Compatibility

선호하는 교체 모델: 3RT2024-1BB40 (Siemens SIRIUS 3RT2 Series)

Identical main contact and coil parameters, with an additional 1NO+1NC auxiliary contact

Compatible mounting dimensions for direct replacement

Other Compatible Models:

슈나이더: LC1D12BD (DC24V, 12에이, 3아니요)

씨줄: A12-30-0124VDC (12에이, 3아니요, DC24V)

사용법 참고 사항
DC Circuit Application: When controlling DC24V circuits, derate the main contacts for use (≤12A resistive load) and install a surge suppressor (freewheeling diode) to protect the contacts
Heat Management: Ensure adequate ventilation for the 접촉기, avoid enclosed installation, and further derate the load when the ambient temperature exceeds 40°C (10% derating for every 10°C rise)
Coil Protection: For the DC24V coil, pay attention to power supply fluctuations (allowable range: 21.6V~26.4V DC) to avoid burnout due to overvoltage
장착 방법: Supports 35mm standard DIN rail mounting or panel mounting, with no restriction on mounting direction

요약

For Siemens 3RT1024-1BB40 in DC24V circuits, the thermal current of the main contacts is 12A (저항 부하) and the thermal current of the DC24V coil is approximately 0.246A. This model has been discontinued, and it is recommended to use the replacement model 3RT2024-1BB40 as the first choice, which features better performance and an added auxiliary contact function.

Siemens 3RT1024-1BB40 Selection Quick Reference Table (DC24V/Thermal Current Special)

적용 가능한 시나리오: Procurement Verification / On-Site Installation / Model Replacement / Parameter Review

Module	목	Rated Parameter/Core Information	Remarks/Applicable Conditions
기본정보	제품 모델	3RT1024-1BB40	Siemens SIRIUS 3RT1 Series (단종)
	코일 전압	DC24V (직류)	Consistent pick-up/holding power
	연락처 구성	3-극 주요 접점 (3아니요), no auxiliary contacts	IP20 보호, screw termination
	Structural Specification	Size S0, 35mm 표준 DIN 레일 장착	No mounting direction restriction, panel/rail mountable
Main Contact Current Parameters	AC-1 (Resistive Load) 열전류	40A@690V AC/50/60Hz	Maximum allowable current for AC long-term operation
	AC-3 (모터 부하) 정격전류	12A@400V AC/50/60Hz (5.5kW three-phase motor)	Rated for AC motor starting/operation
	DC-1 (Resistive Load) 열전류	12A@24V DC	Core parameter for DC24V long-term operation (Key Point)
	DC-3 (모터 부하) 정격전류	8A@24V DC	Adapted for DC24V motor load
DC24V Coil Parameters	정격 출력	5.9여	Siemens official rating
	Coil Thermal Current	0.246에이	Calculation formula: I=P/U=5.9W/24V
	코일 저항	대략. 97.5오	Calculation formula: R=U/I=24V/0.246A
	Allowable Voltage Range	21.6V~26.4V DC (±10%)	Avoid coil burnout from over/undervoltage
Life/Insulation	기계적 수명	3×10⁷ operations	Industrial-grade durability
	AC-3 Electrical Life	1×10⁶ 연산	Adapted for frequent motor start/stop
	절연 전압	690V AC/DC	Reliable electrical isolation performance
선호하는 교체 모델	모델	3RT2024-1BB40 (Siemens 3RT2 Series)	Original factory upgraded model, direct compatible replacement
	Core Compatibility Points	Same main contact/coil/mounting dimensions as 3RT1024-1BB40	No rewiring cost, 직접 교체
	Upgrade Points	Added 1NO+1NC auxiliary contacts, improved protection/durability	First choice for cost performance
Cross-Brand Compatible Models	슈나이더	LC1D12BD	DC24V, 3NO main contacts, 12A@400V AC-3
	씨줄	A12-30-01*24VDC	DC24V, 3NO main contacts, 12A@400V AC-3
Installation/Usage Key Points	설치 요구 사항	35mm 표준 DIN 레일, ventilated installation, avoid enclosure	Reduce temperature rise, ensure heat dissipation
	DC Protection	Install a freewheeling diode on main contacts when controlling DC24V circuits	Suppress surges, prevent contact erosion
	Temperature Derating	10% load current derating for every 10°C rise when ambient temperature ＞40℃	예를 들어, DC24V resistive load ≤10.8A at 50℃
	작동 온도	-25℃ ~ 60℃	Adapted for industrial high/low temperature environments