سيمنز DC المقاولين 3RT1024-1BB40

Model Interpretation and Basic Information

غرض	تفاصيل
نموذج كامل	3RT1024-1BB40
سلسلة المنتجات	Siemens SIRIUS 3RT1 Series (توقف, نموذج الاستبدال: 3RT2024-1BB40)
Structural Specification	3-القطب, Size S0, Screw Termination, IP20 Protection Class
الجهد لفائف	تيار مستمر 24 فولت (24 Volt DC)
تكوين جهة الاتصال الرئيسية	3 مفتوح عادة (3لا)
فئة التطبيق	ايه سي-3 (Three-Phase Motor Load) 12أ, 5.5kW/400V

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

Current Type	Rated Value	Applicable Conditions	ملاحظات
ايه سي-1 (Resistive Load) Thermal Current	40أ	690الخامس و, 50/60هرتز	Maximum allowable current for long-term operation
ايه سي-3 (تحميل المحرك) التصنيف الحالي	12أ	400الخامس و, 50/60هرتز	Corresponding to 5.5kW three-phase motor
DC-1 (DC Resistive Load) Thermal Current	12أ	24في العاصمة	Long-term operating current for DC circuits
DC-3 (DC Motor Load) التصنيف الحالي	8أ	24في العاصمة	Starting and operating current for DC motors

Thermal Current of DC24V Coil

المعلمة	قيمة	Calculation Basis
Rated Coil Power	5.9دبليو	Siemens official data
Coil Thermal Current	0.246أ	I = P/U = 5.9W/24V
مقاومة الملف	تقريبا. 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

ثالثا. Key Technical Characteristics

Load Adaptation: Suitable for controlling ≤12A resistive load or ≤8A DC motor load in DC24V circuits
درجة حرارة التشغيل: -25°C ~ 60°C, adaptable to industrial environments
الحياة الميكانيكية: 3×10⁷ operations, الحياة الكهربائية (ايه سي-3): 1×10⁶ operations
جهد العزل: 690V, reliable electrical isolation performance
Replacement Models and Compatibility

Preferred Replacement Model: 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:

شنايدر: LC1D12BD (تيار مستمر 24 فولت, 12أ, 3لا)

ايه بي بي: A12-30-0124VDC (12أ, 3لا, تيار مستمر 24 فولت)

ملاحظات الاستخدام
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 قواطع, 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
طريقة التركيب: Supports 35mm standard DIN rail mounting or panel mounting, with no restriction on mounting direction

ملخص

For Siemens 3RT1024-1BB40 in DC24V circuits, the thermal current of the main contacts is 12A (حمل مقاوم) 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)

السيناريوهات القابلة للتطبيق: Procurement Verification / On-Site Installation / Model Replacement / Parameter Review

Module	غرض	Rated Parameter/Core Information	Remarks/Applicable Conditions
المعلومات الأساسية	نموذج المنتج	3RT1024-1BB40	Siemens SIRIUS 3RT1 Series (توقف)
	الجهد لفائف	تيار مستمر 24 فولت (Direct Current)	Consistent pick-up/holding power
	تكوين الاتصال	3-اتصالات القطب الرئيسية (3لا), no auxiliary contacts	حماية IP20, screw termination
	Structural Specification	Size S0, 35مم تركيب السكك الحديدية DIN القياسية	No mounting direction restriction, panel/rail mountable
Main Contact Current Parameters	ايه سي-1 (Resistive Load) Thermal Current	40A@690V AC/50/60Hz	Maximum allowable current for AC long-term operation
	ايه سي-3 (تحميل المحرك) التصنيف الحالي	12A@400V AC/50/60Hz (5.5kW three-phase motor)	Rated for AC motor starting/operation
	DC-1 (Resistive Load) Thermal Current	12A@24V DC	Core parameter for DC24V long-term operation (Key Point)
	DC-3 (تحميل المحرك) التصنيف الحالي	8A@24V DC	Adapted for DC24V motor load
DC24V Coil Parameters	القوة المقدرة	5.9دبليو	Siemens official rating
	Coil Thermal Current	0.246أ	Calculation formula: I=P/U=5.9W/24V
	مقاومة الملف	تقريبا. 97.5أوه	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	الحياة الميكانيكية	3×10⁷ operations	Industrial-grade durability
	AC-3 Electrical Life	1×10⁶ operations	Adapted for frequent motor start/stop
	جهد العزل	690V AC/DC	Reliable electrical isolation performance
Preferred Replacement Model	نموذج	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, الاستبدال المباشر
	Upgrade Points	Added 1NO+1NC auxiliary contacts, improved protection/durability	First choice for cost performance
Cross-Brand Compatible Models	شنايدر	LC1D12BD	تيار مستمر 24 فولت, 3NO main contacts, 12A@400V AC-3
	ايه بي بي	A12-30-01*24VDC	تيار مستمر 24 فولت, 3NO main contacts, 12A@400V AC-3
Installation/Usage Key Points	متطلبات التثبيت	35mm standard DIN rail, 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℃	على سبيل المثال, DC24V resistive load ≤10.8A at 50℃
	درجة حرارة التشغيل	-25℃ ~ 60℃	Adapted for industrial high/low temperature environments