HEATING CONTROL PANEL PULP HOT PRESS 1250 AMP SCHNEIDER

1250 AMP HEATING CONTROL PANEL

SCHNEIDER

MS22G-US-HCC1

PULP HOT PRESS PRODUCTION LINE

INCLUDES

1 - 1250 AMP MOLDED CASE BREAKER SCHNEIDER MODEL NS 1250N NS33478 WITH SHUNT RELEASE

1 - CABINET A/C COOLING UNIT NINNO MODEL MEA1500/D1N 220 V 3.1 A 1500 WATT COOLING

1 - CONTROL TRANSFORMER 3KVA

1 - POWER SUPPLY SPSI DRP024V480W1AA

25 - FUSES ABB S802C-B100 2A 2PC6 2PC10 2PC16

16 - SOLID STATE RELAYS CRYDOM H12WD4890PG

92 - TERMINAL BLOCKS

32 - FUSES MRO RT18L-125 RS17-100A

This is a custom or factory-built 1250 Amp heavy industrial heating control panel, specifically engineered by or built with Schneider Electric components for a Pulp Hot Press Production Line.

Because pulp processing requires precise, high-load thermal management and undergoes immense mechanical compression, this panel is designed to safely handle heavy current distribution while preventing thermal failure of the internal solid-state components.

A technical breakdown of the sub-assemblies inside this panel layout includes:

1. Main Power Distribution & Circuit Protection

The Main Breaker: The Schneider Compact NS1250N (Model 33478). This is a massive 3-pole molded case circuit breaker (MCCB) rated for 1250 Amps. It features a Shunt Release (Shunt Trip), allowing an external safety system (like an emergency stop or a PLC safety relay) to instantly trip the main breaker remotely

Branch Circuit Fuses:

25x ABB S802C-B100: These are high-performance miniature circuit breakers (MCBs) or heavy-duty industrial fuse bases designed to protect smaller branch lines (such as 2A logic loops, and 6A/10A/16A control circuits).

32x MRO RT18L-125 / RS17-100A: High-capacity cylinder fuse links (rated up to 100A). These are likely protecting the individual heating element groups downstream from the solid-state relays.

2. Thermal Regulation & Climate Control

The Enclosure Air Conditioner: The NINNO Model MEA1500/D1N (associated with Myrole/Envicool). It pulls 3.1 Amps at 220V to generate 1500 Watts (approx. 5,100 BTU/h) of active, closed-loop cooling.

Why it's critical here: Solid-state relays generate massive amounts of heat when throttling current to heavy heating elements. Without this 1500W industrial A/C unit, the internal ambient temperature of the cabinet would rapidly exceed safe thresholds, causing component failure.

3. Control Power & Logic Supplies

Control Transformer (3KVA): This steps down the high line voltage (typically 480V or 600V) to a safer, single-phase auxiliary control voltage (like 120V or 220V) to run the A/C unit, fans, and control loops.

DC Power Supply (SPSI DRP024V480W1AA): A 480-Watt DIN-rail mounted power supply that converts auxiliary AC power into stable 24V DC. This powers the PLC, the gate signals on the solid-state relays, indicator lights, and internal sensors.

4. Load Switching & Connectivity

16x Crydom H12WD4890PG Solid State Relays (SSRs): High-power, heavy-duty industrial SSRs rated up to 90 Amps / 480VAC per relay. These utilize the 24V DC logic control signals to rapidly cycles power on and off to the hot press heating zones, allowing precise temperature curves without the physical wear of mechanical contactors.

92x Terminal Blocks: DIN-rail mounted terminals used to clean up, distribute, and route the internal control wiring safely out to the pulp line's field sensors, thermocouples, and heating elements.

Are you currently troubleshooting an issue within this panel, looking to source direct replacement parts for one of these components, or trying to determine the market value of the complete asset?

Schneider Electric

33478 - Circuit breaker, ComPact NS1250N, 50kA/415VAC, Micrologic 2.0 trip unit, 1250A, fixed, 3 poles 3d | Schneider Electric Australia

The Schneider Heating Control Panel for Pulp Hot Press is a robust industrial solution designed to handle demanding applications requiring precise temperature and current control. Rated at 1250 Amps, it incorporates a Schneider NS 1250N molded case circuit breaker with a shunt release for quick shutdown capabilities. This panel includes essential components such as an A/C cooling unit powered at 220V with a 1500W capacity to maintain optimal thermal conditions. Key features also include a 3KVA control transformer and a power supply to provide stable 24V DC for control circuits. The setup is designed to support the intricate demands of pulp production with integrated solid-state relays, specifically 16 Crydom H12WD4890PG units, offering reliable and efficient load switching at up to 90 Amps each. Additionally, it provides comprehensive protection and connectivity with multiple ABB and MRO fuses, as well as 92 terminal blocks for streamlined wiring and equipment integration. Engineered to handle the rigors of industrial thermal processing, this control panel is suitable for high-load environments and offers safe, reliable operation while facilitating complex heating processes with pinpoint accuracy.