Buffer Modules on Powermatic Associates

PULS UF20.481 is an Uninterruptible Power Supply (UPS) control module, part of the UF-series, designed as a bfr. module with capacitive storage and features a green status LED. It is housed in aluminium and utilizes spring-clamp connections for connectivity. This module measures W64mm x H124mm x D102mm and operates on a supply voltage range of 38.4Vdc to 60Vdc, with a nominal voltage of 48Vdc. It is rated for a current of 20A (bfr.) and is designed for DIN rail mounting. The UF20.481 can operate in ambient air temperatures ranging from -25 to +70°C and is suitable for DC networks. It includes a visual position indicator for Ready, Buffering, and Inhibit statuses. The module offers protection functions including output overvoltage protection, with typical protection at 58Vdc and a maximum of 60Vdc. Buffer modules can be connected in parallel to increase output ampacity or hold-up time. It provides a fixed output voltage of 48Vdc, boasts an efficiency of 0.99 at 48Vdc input, and offers a hold time of 15ms / 0.15s at a 20A load. Power dissipation/losses are 1.9 W at 24Vdc input with 0A output current. Ripple is specified as 250mVpp at 5A, 400mVpp at 10A, and 600mVpp at 20A, across a frequency range of 20Hz to 20MHz at 50Ω. Its electrical durability is rated at 161,000 hours at 40°C and 457,000 hours at 25°C in standby mode.

PULS UF20.241 is an Uninterruptible Power Supply (UPS) control module, part of the UF-series, designed as a buffer module with capacitor storage featuring a green status LED. This product is housed in aluminum and utilizes spring-clamp connections for secure installation. It measures W64mm x H124mm x D102mm and is designed for DIN rail mounting. The UF20.241 operates with a supply voltage range of 19.2Vdc to 30Vdc, with a nominal voltage of 24Vdc, and supports a rated current of 20A before fusing. It is engineered to function within an ambient air temperature range of -25 to +70°C and is suitable for DC networks. The module includes a visual position indicator for Ready, Buffering, and Inhibit statuses. It offers protection functions including output overvoltage protection, with typical protection at 32Vdc and a maximum of 35Vdc. The UF20.241 allows for parallel connection of buffer modules to enhance output ampacity or hold-up time. It delivers a fixed output voltage of 24Vdc, boasts an efficiency of 0.99 with a 24Vdc input, and provides a hold time of 31ms / 0.31s at a 20A load. Power dissipation is calculated at 1.9 W for a 24Vdc input at 20A output current, with a ripple of 200mVpp across a frequency range of 20Hz to 20MHz at 50Ω. Its electrical durability is rated at 166,000 hours in standby mode at 40°C and 469,000 hours at 25°C.

PULS UF40.241 is an Uninterruptible Power Supply (UPS) control module within the UF-series, designed as a bfr. module with capacitor storage and a green status LED. It features a DC/DC UPS control mechanism with a 34-second charging time, encased in an aluminium housing. The unit offers screw-clamp connections for secure installation and measures W64mm x H124mm x D142mm. It operates on a supply voltage range of 19.2Vdc to 30Vdc, with a nominal 24Vdc, and supports a rated current of 40A (bfr.). Designed for DIN rail mounting, the UF40.241 can function within an ambient air temperature range of -25 to +70°C and is suitable for DC networks. It includes a visual position indicator for Ready, Buffering, and Inhibit statuses. The module provides protection against output overvoltage, with typical protection at 32Vdc and a maximum of 35Vdc. It allows for parallel connection of buffer modules to enhance output ampacity or hold-up time. The output voltage is fixed at 24Vdc, with an efficiency of 0.99 at a 24Vdc input. The hold time is specified as 25ms/0.25s at 40A load and 50ms/0.5s at 20A load. Power dissipation/losses are noted as 1.9 W at a 24Vdc input with 0A output current, and the ripple is 200mVpp across a frequency range of 20Hz to 20MHz at 50Ω. Electrical durability is rated at 189,000 hours at 40°C and 536,000 hours at 25°C in standby mode.

PULS SLV20.200 is a buffer unit designed with a DC-OK relay contact output and features a buffer module with signaling terminal and an EMC filter with natural convection cooling. It has dimensions of W30mm x H42mm x D14mm and operates on a supply voltage range of 24Vdc to 28.8Vdc, with a rated current of 20A at 24Vdc. This unit is suitable for DIN rail mounting and can operate in ambient air temperatures ranging from -10 to +70°C. The SLV20.200 has a net width of 30 mm and consumes a current of 20A. It is equipped with protection functions against overload, short-circuit, and can handle overload/short-circuit current as well as series/parallel operation, allowing it to bridge mains faults without interruption. The output voltage is fixed at 22.5Vdc, with a time delay of 4s for start-up and a 31ms rise time under nominal input with a constant full current load. The ripple is specified at 200mVpp across a frequency range of 20Hz to 20MHz at 50Ω.