منبع تغذیه SIL3 مدل PSM1250 شرکت GMI

معرفی محصول

مشخصات و کاربرد منبع تغذیه SIL3 مدل PSM1250 شرکت GMI

منبع تغذیه مدل PSM1250 یک واحد با بدنه آلومینیومی آنودایز شده است که برای استفاده در سیستم PSS1250 طراحی شده است.

این منبع تغذیه، خروجی 24 ولت DC با جریان 50 آمپر را فراهم می‌کند.

ماژول‌های PSM1250 را می‌توان به‌صورت موازی بر روی PSS1250 نصب کرد. این ماژول‌ها دارای مدارهای تقسیم بار (Load Sharing) هستند که جریان بار را به‌طور مساوی بین منابع تغذیه توزیع می‌کنند. این ویژگی باعث:

افزایش قابلیت اطمینان (Reliability)
کاهش تلفات توان داخلی
کاهش گرمای تولیدی
بهبود عملکرد و دسترس‌پذیری سیستم

می‌شود.

این منبع تغذیه، برق ورودی AC را در محدوده 110 تا 240 ولت AC با تلرانس ±10٪ می‌پذیرد.

کاربرد: سیستم منبع تغذیه

Environmental conditions

Operating temperature limits: -40 to +70°C de-rated linearly 65-70% load above 50°C.
Relative humidity limits: 95 %, up to 55 °C.
Transport, storage temperature limits: - 45 to + 85 °C.
Max altitude: 2000 m a.s.l.

Isolation

Input to Output isolation: 2500 Vrms (routine test).
Input to Earth-Ground isolation: 1500 Vrms (routine test).
Earth-Ground to Output isolation: 500 Vrms (routine test).
Output or Earth-Ground to Fault contact isolation: 500 Vrms (routine test)

Mechanical

Mounting: Usable only with 7” or 9” or 19” Rack unit, 4 units high. 7” or 9” Rack unit for wall mounting, into a cabinet. 19” Rack unit for wall mounting or for frontal rack mounting, into a cabinet.
Weight: 2.2 kg.
Location: installation in Safe Area/Non Hazardous Locations or Zone 2, Group IIC T4 or Class I, Division 2, Group A,B,C,D, T4.
Protection class: IP 20, Open Type.
Dimensions: Width 60 mm, Depth 345 mm, Height 172 mm.

Output

Voltage: 24 Vdc (adjustable from 21 to 28 Vdc).
Regulation: 0.4 % for a 100 % load change.
Stability: 0.01 % for a 20 % line voltage change.
Ripple: ≤ 250 mVpp.
Output current: 50 A nominal (@24Vdc out). Parallel connection for redundancy with load sharing capability within ±5 % of output voltage setting.
Output power: up to 1300 W nominal (@28Vdc out).
Output Rise Time: 2.5 s.
Dynamic Response: 2 ms for 0-100% load change (overshoot ±1.5% of Vout setting).
Connection: M6 screw terminals on copper bars suitable for lug (at least 6.5 mm hole diameter) with 16mm2 wire on PSS1250 back panel pcb.
Hold-up time at full load: 20 ms (AC input).
Over voltage protection: output limited to 30 Vdc plus two redundant crowbars for over voltage protection at 30 Vdc.

Power good signaling

Output good: 19.5 V ≤ Vout ≤ 29.5 V.
Indication: via LCD screen on PSO1250 and Modbus RTU RS-485 protocol.
Signaling: voltage free SPST normally energized relay (contact closed), de-energize in over/under voltage conditions (contact open).
Contact rating: 2 A 50 Vac 100 VA, 2 A 24 Vdc 48 W (resistive load).
Connection: screw terminal blocks suitable for 1.5 mm2 wires on PSS1250 back panel pcb.

Supply

AC Input voltage: nominal 110 to 240 Vac (±10%), with frequency range 48 to 62 Hz.
Power Factor Correction (AC input): 0.98 typ.@230Vac, 0.995 typ.@115Vac, full load.
Efficiency @24Vdc out (full load): better than 89 % @ 230 Vac and 86% @ 115 Vac.
Max. internal power dissipation @24Vdc out (full load): 150 W @ 230 Vac; 195 W @ 115 Vac.
AC input current (sinusoidal at full load) @24Vdc out: 14.2A @100Vac input voltage, 12.2 A @115 Vac input voltage, 6.1 A @230 Vac input voltage.
Inrush current: 37 A peak @ 264 Vac; 32 A peak @ 230 Vac; 16 A peak @ 115 Vac.
AC input connection: screw terminal blocks suitable for 4mm2 wires on PSS1250 back panel pcb.

نوع	توضیحات	شماره	مرجع صدور	تاریخ
ATEX	DEKRA ATEX PSS1250, PSW1250, PSW1230 Series English Certificate ( EN \| DE )	BVS 15 ATEX E 006 X	DEKRA	2022-08-01
Ex	PSx1200 CCC certificate for China ( EN )	2020322303000822	NEPSI	2025-06-23
IECEx	DEKRA IECEx PSS1250, PSW1250, PSW1230 Series Certificate ( EN )	IECEx BVS 15.0006X	DEKRA	2022-09-08