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Type 78.1B

Product catalog summary

Overview: The document introduces the 78 Series Industrial Switch Mode Power Supplies, specifically the Type 78.1B, as a high-efficiency solution for electrical and electronic applications. It highlights features such as adjustable output voltage, overload and short circuit protection, and suitability for industrial automation systems, control and measurement systems, and LED lighting.

Specifications:

Output: 5 A, 24 V DC
Input Voltage Range: 100...265 V AC, 140...275 V DC (polarised)
Efficiency: 93%
Power Factor: 0.998
Ambient Temperature Range: –20...+70°C
Stand-by Power Consumption: Down to 1 W

Features:

Front panel replaceable fuse for input protection
Thermal protection with LED status indication (Type 78.1D, 78.2E only)
Auxiliary contact indication (Type 78.1D, 78.2E only)
Compact size
Boost current without time limit
Suitable for battery charging

LED Status Indications: The document provides tables for LED status indications for different models, indicating states such as OK, short circuit, and thermal limit.

Feedback Contact Switching Modes:

Positive Logic: NO contact closes when power is applied and remains closed unless a serious fault occurs.
Pre-alarm: NO contact closes upon detecting anomalies like overload, short circuit, or thermal limit, suitable for activating alarms or cooling fans.

Approvals and Liability: The document notes that approvals vary by type and includes a disclaimer about Finder's right to alter characteristics without notice and liability for incorrect use.

Catalog excerpts

Industrial Switch Mode Power Supplies Type 78.1B The newest addition to Finder’s range of high efficiency power supplies for electrical and electronic applications. Adjustable output voltage with overload and short circuit protection. Addresses the need for low voltage power within industrial automation systems, control and measurement systems, and LED lighting. Approvals (according to type) Front panel replaceable fuse for Input protection Thermal protection with LED status indication (type 78.1D, 78.2E only) Auxiliary contact indication (type 78.1D, 78.2E only)

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78 SERIES Industrial Switch Mode Power Supplies 78.1D.1.230.2414 78.1D.1.230.2415 Features - Compact size - Stand-by power consumption down to 1 W - High efficiency 93% Rated Output Voltage Output Voltage Adjust 24V DC 24...28 V 5 A (230 V AC input) 4.5 A (full input range) 120 W (230 V AC input) 110 W (full input range) 100...265 V AC 140...275 V DC (polarised) Rated Output Current Rated Output Power Input voltage range Dual stage with active - Power Factor Corrector Dimensions (w x h x d) - Power factor: 0.998 - Boost current: without time limit - Suitable for battery charging 88...265 V AC...

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