LB1000-SI LEM | Alldatasheet
Document overview
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- PDF pages: 3
Technical content
Features
- Closed loop (compensated) current transducer using the Hall effect
- Insulated plastic case recognized according to UL 94-V0. Special features
- Shield between primary and secondary. Advantages
- Better zero crossing performance
- Excellent accuracy
- Very good linearity
- Low temperature drift
- Optimized response time
- Wide frequency bandwidth
- No insertion losses
- High immunity to external interference
- Current overload capability.
Applications
- AC variable speed drives and servo motor drives
- Static converters for DC motor drives
- Battery supplied applications
- Uninterruptible Power Supplies (UPS)
- Switched Mode Power Supplies (SMPS)
- Power supplies for welding applications. Application domain
- Industrial. IPN = 1000 A
LEM Components www .lem.com Page 2/3LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice. Current Transducer LB 1000-SI/SP2 Isolation characteristics Vd R.m.s. voltage for AC isolation test, 50 Hz, 1 mn 6 kV Vw Impulse withstand voltage 1.2/50 µs 17 kV Min dCp Creepage distance 54.5 mm dCl Clearance distance 44.4 mm CTI Comparative Tracking Index (Group IIIa) 225 Application examples According to EN 50178 and CEI 61010-1 standards and following conditions :
- Over voltage category OV 3
- Pollution degree PD2
- Non-uniform field Safety This transducer must be used in electric/electronic equipment with respect to applicable standards and safety requirements in accordance with the following manufacturer's operating instructions. Caution, risk of electrical shock When operating the transducer, certain parts of the module can carry hazardous voltage (eg. primary busbar, power supply). Ignoring this warning can lead to injury and/or cause serious damage. This transducer is a built-in device, whose conducting parts must be inaccessible after installation. A protective housing or additional shield could be used. Main supply must be able to be disconnected. EN 50178 CEI 61010-1 dCp, dCI, Rated isolation voltage Nominal voltage Single isolation 5000 V Cat IIIa 5000 V rms Reinforced isolation 2500 V Cat IIIa 2500 V rms Vw
LEM Components www .lem.com Page 3/3LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice. Secondary terminals Terminal + : supply voltage + 15 V Terminal M : measure Terminal - : supply voltage - 15 V Connection Remarks
- IS is positive when IP flows in the direction of the arrow.
- Temperature of the primary conductor should not exceed 100°C.
- Dynamic performances (di/dt and response time) are best with a single bar completely filling the primary hole. Mechanical characteristics
- General tolerance ± 0.5 mm
- Fastening 4 slots ∅ 7 mm
4 M5 steel screws
Recommended fastening torque 4 Nm or 2.95 Lb. - Ft.
- Primary through-hole ∅ 40 mm
- Connection of secondary Faston 6.3 x 0.8 mm. Dimensions LB 1000-SI/SP2 (in mm. 1 mm = 0.0394 inch) Front view Top view Left view