HEATER CONTROL PANELS

Gaumer Process heater control panels are specifically selected and designed to fulfill the control requirements of most process heating applications. Gaumer Process offers Nema 12, Nema 4, and Nema 7 standard panel enclosure to fit a wide variety of elecric heat control needs.

Nema 12 control panels are gasket enclosed and suitable for most indoor industrial applications. Enclosures are finished with factory applied and baked acrylic resin.

Nema 4 control panels are gasketed enclosure with stainless steel hardware suitable for most outdoor non-hazardous industrial applications. Enclosure is finished with factory applied and baked acrylic resin.

Nema 7 control panels offer a machined aluminum cast enclosure and are rated for hazardous locations. Location classifications include Class 1, Group D, Div. 1 and 2. Contact us for more location information.

Standard features include:

Heavy gauge gasketed enclosure finished in grey Epox
Integral "Dead Front" switch
"Off-On" Control Power selector switch
"Power-On" pilot light
Illuminated reset button
Digital indicating electronic temperature controller Circuit breaker with mechanism
Control transformer with fused primary lines and fused/grounded secondary lines
"Zero Fire" type SCR assembly with external cooling, Three pole safety magnetic contactor(s)
Electronic over-temperature controller
Fast acting fuses for circuit protection
Terminal strips for customer connections
Safety relay button to ensure safe shut down and the ability to enable systems remotely

Some typical methods of power control and/or temperature control are contractor control, stepper SCR control, or full SCR control. Additionally Gaumer Process can custom temperature control panels to meet your specific needs.

Panel Types

Type CP - Contactor (off/on) control	Type ZPA - 2 Leg Analog SCR (Thyristor) Control
Type CPST - Contactor/Step control	Type ZPA3 - 3 Leg Analog SCR (Thyristor) Control
Type SCRP - 2 Leg Solid State Relay Control	Type ZPD - 2 Leg Digital SCR (Thyristor) Control
Type SCP - 3 Leg Solid State Relay Control	Type ZPD3 - 3 Leg Digital SCR (Thyristor) Control

Ratings

Nema 12 (IP52)	Nema 7 (Ex d)
Nema 4 (IP66)	Purged for hazardous area classification
Nema 4X (IP66)

Standard Features

Main Disconnect or Circuit Breaker	Remote Enable
PID Indicating Temperature Controller	Safety Reset Pushbutton
FM approved Limit Controller	Control Power Off/On Switch
Safety Isolation Contactors	Control Transformer
Branch Circuit fusing	Cooling Package as required
Emergency Stop Pushbutton	Safety Relay for Safety Shutdown

Options

PLC with Door Mounted HMI	Retransmission
65 KAIC Rating	Remote Setpoint
Ground Fault Protection	24VDC Controls
Volt and Amp Meters	Other Option per Customer Request
Light and Convenience Outlet

HEATER CONTROL PANEL TYPES

Type SCP and SCRP

SCP and SCRP control panels use zero cross (burst firing) solid state relays (SSR's) in conjuction with external heat sinks to remove heat from the panel enclosure. These SSR's are manufactured with direct copper bonding technology and a built in varistor for surge protection. The zero switching relay switches ON when the sinusoidal curve crosses the zero and switches OFF when the current crossed zero. Zero cross SSR's create very low harmonics and RFI and are much more reliable.

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Gaumer Solid State Relays include IP protected connections of cables with ring terminals. Testing can be made through the protective covers.

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Solid State Relays are used with external heat sinks to remove heat from inside of the enclosure.

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Nema 4X SCRP panel for hazardous area

Stainless Steel Enclosure
Skid Mounted
Type Z or X Purge
Vortex Air Conditioner

Type ZPA and ZPA3

ZPA and ZPA3 series control panels use zero cross (burst firing) three phase analog SCR's (Thyristors). Designed for larger electric heater loads, these panels are available in sizes from 85 to over 2500 amps.

Analog SCR

Four SCR for 2 Leg
Six SCR for 3 Leg
Sync-Guard to smooth out line current draw when multiple controllers are used
Thermostatically protected
Shorted SCR Detection
UL/cUL,CSA approval

Type ZPD and ZPD3

ZPD and ZPD3 series control panels use zero cross (burst firing) three phase digital SCR's (Thyristors). Designed for larger electric heater loads, these panels are available in sizes from 85 to over 2500 amps.