Product Short Description
Product Name: DC Power Supply Module for IS (Intrinsic Safety) Modules
Product Overview:
A dedicated DC power supply that converts a nominal 24 V DC plant supply into a regulated 12 V DC bus to power MTL8000 I/O modules with intrinsically safe field wiring. Supports load‑sharing for redundancy.
Description
Technical Specifications:
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Parameter
|
Specification
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|---|---|
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Input Voltage
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18.5 – 36 V DC (nominal 24 V DC)
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Output Voltage
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12 V DC
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Output Current
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5 A capacity
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Efficiency
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76 % (18.5 V in, 4.1 A out); 78 % (24 V in, 3.3 A out); 76.5 % (36 V in, 2.1 A out)
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Dimensions
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84 mm (W) × 110 mm (H) × 160 mm (D)
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Weight
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≈ 1290 g
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Input Connection
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2‑part screw terminal, duplicated; max cable 2.5 mm²
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Mounting
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On carrier 8724‑CA‑PS (dedicated) or load‑share arrangement
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Power Capability
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Supplies 6 – 20 I/O modules depending on type; n+1 redundancy possible
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Functional Features:
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Regulated 12 V DC Output – Powers IS‑field I/O modules safely.
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Load‑Sharing Redundancy – Multiple units can share load in n+1 configuration for high availability.
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Wide Input Range – Accepts 18.5 – 36 V DC, accommodating global 24 V DC plant supplies.
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Carrier‑Based Installation – Direct mount on 8724‑CA‑PS carrier.
Application Scenarios: MTL8000 PAC8000 I/O nodes requiring intrinsically safe field power, redundant power architectures for critical process control.
Working Principle: A switching regulator steps down the 24 V DC input to a tightly regulated 12 V DC bus; current sharing circuitry balances load among parallel units.
Installation Requirements: Mount on 8724‑CA‑PS carrier in a control cabinet; ensure input wiring gauge ≥ 2.5 mm²; fuse the 24 V DC input per plant standards.
Usage Notes: Do not exceed 5 A total load; when using redundancy, all units must be identical; verify output voltage before connecting I/O modules.
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