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You searched for: ETI Model SC-40C Snow/Ice Melting Satellite Contactor. Modular Snow/Ice Heater Control System
Results Displayed: 1 - 12 of 12

ETI Snow Switch Model SC-40C Snow/Ice Melting Satellite Contactor. Modular Snow/Ice Heater Control System


Description


The SC–40C Satellite Contactor answers the need for cost effective modular snow melting heater control. One or more SC–40Cs, when used with an APS–4C Control Panel acting as the master control, allow for modular snow melting system design. There is no limit to the number of SC–40Cs that can be interfaced in a single system. This approach reduces front end design, hardware and installation costs while providing a number of useful features that would be otherwise too expensive and complex to implement.

The SC–40C provides the same advanced patented and patent pending Ground Fault Equipment Protection (GFEP) as required by the USA and Canadian National Electric codes that is found on the APS–4C. Upon sensing a ground fault condition, an SC–40C inhibits operation of its contactor until manually reset. Circuits without a ground fault continue to operate normally thus partitioning defective heaters.

The adjustable hold-on timer continues heater operation on each SC–40C for up to 10 hours after snow stops to ensure complete melting and to compensate for differences between zones. The optional RCU–4 Remote Control Unit can be located where system operation can be conveniently observed. It duplicates many of the controls and indicators on the SC–40C front panel.

Each SC–40C provides a complete energy management computer (EMC) interface. This feature provides remote access for advanced applications requiring remote or zone control along with remote annunciation.

Each SC–40C maintains communications to and from the APS–4C using a 3-wire cable. Thus, the APS–4C alarms ground faults occurring anywhere in the system. This feature inserts a short time delay between the operation of each contactor thus improving power quality by limiting the inrush current. The RCU–4 Remote Control Unit supplied permits overriding zone control in applications requiring the capability.

The SC–40C is interchangeable with the earlier SC–40.

Specifications

General

Area of use
Nonhazardous locations

Approvals
cULus


Enclosure

Protection
NEMA 3R

Cover attachment
Hinged polycarbonate cover, lockable

Entries
1 × 1-1/16" entry (top) for NEC Class 2 connections
2 × 1-11/16" entries (bottom) for supply and load power, except 277 VAC single phase
2 × 1-1/16" entries (bottom) for supply and load power, 277 VAC single phase only

Material
Polycarbonate

Mounting
Wall mounted


Communications Bus

Number of cascaded units
Unlimited

Contactor delay
5 second

Bus-wire type
3-wire jacketed cable

Circuit type
NEC Class 2

Lead length
Up to 500' (152m) using 18 AWG 3-wire jacketed cable
Up to 1,000' (504m) using 12 AWG 3-wire jacketed cable


Control

Supply
ETI PN 22477: 208-240 VAC, 35 VA, 3-phase 50/60 Hz
ETI PN 22478: 277 VAC, 45 VA, single phase 50/60 Hz
ETI PN 22480: 277/480 VAC, 45 VA, 3-phase 50/60 Hz
ETI PN 22481: 600 VAC, 50 VA, 3-phase 50/60 Hz


Load
ETI PN 22477: 208-240 VAC, 50 amp max. resistive
ETI PN 22478: 277 VAC, 40 amp max. resistive
ETI PN 22480: 277/480 VAC, 50 amp max. resistive
ETI PN 22481: 600 VAC, 50 amp max. resistive

Contact type
3 Form A

Maximum Ratings
Voltage: 600 VAC
Current: 50 amps

Heater hold-on timer
0 to 10 hours; actuated by toggle switch

System test
Switch toggles the heater contact on and off. If temperature exceeds high limit, heater cycles to prevent damage.


Ground Fault Equipment Protection (GFEP)

Set point
30 mA (default); 60 mA and 120 mA selectable by DIP switch

Automatic self-test
Mode A: Verifies GFEP function before contactors operate
Mode B: Verifies GFEP and heaters every 24 hours

Manual test/reset
Toggle switch provided for this function

Maintenance facility
DC output proportional to ground current provided for troubleshooting the heater system


Snow/Ice Sensors

Not Applicable


High Limit Thermostat

Adjustment range
40°F to 90°F (4°C to 32°C)

Dead band
1°F (0.6°C)

Sensor type
Thermistor network

Circuit type
NEC Class 2

Lead length
Up to 500' (152m) using 18 AWG 2-wire jacketed cable
Up to 1,000' (504m) using 12 AWG 2-wire jacketed cable


Energy Management Computer (EMC) Interface

Inputs
OVERRIDE ON (10 ma dry switch contact)
OVERRIDE OFF (10 ma dry switch contact)

Outputs
SUPPLY (10 ma dry switch contact)
SNOW (10 ma dry switch contact)
HEAT (10 ma dry switch contact)
HIGH TEMP (10 ma dry switch contact)
ALARM (10 ma dry switch contact)


Environmental

Operating temperature
-40°F to 160°F (-40°C to 71°C)

Storage temperature
-50°F to 180°F (-45°C to 82°C)
















Data Sheet
Item CodeDescriptionVendorQuantity
ETI19272
19272 Temperature Sensor
ETI (Environmental Technology Inc.) Ambient High Temperature Sensor with 20 Foot Lead for use with SST-2, SST-3, EUR-5A, APS-4C, SC-40C, APS-3C & GPT-3
ETI (Environmental Tech.)
ETI22472
APS-4C 208-240V Snow Melting Control
ETI (Environmental Technology Inc.) Snow Switch. Automatic Snow/Ice Melting System Control - 208-240 VAC Three Phase, UL / CSA - Order No. 22472
ETI (Environmental Tech.)
ETI22475
APS-4C 277/480V Snow Melting Control
ETI (Environmental Technology Inc.) Snow Switch. Automatic Snow/Ice Melting System Control, 277/480 VAC Three Phase, UL / CSA - Order No. 22475
ETI (Environmental Tech.)
ETI22473
APS-4C 277V Snow Melting Control
ETI (Environmental Technology Inc.) Snow Switch. Automatic Snow/Ice Melting System Control, 277 VAC SinglePhase, UL / CSA
ETI (Environmental Tech.)
ETI22476
APS-4C 600V Snow Melting Control
ETI (Environmental Technology Inc.) Snow Switch. Automatic Snow/Ice Melting System Control, 600 VAC Three Phase, U-L / CSA - Order No. 22476
ETI (Environmental Tech.)
ETI10001
CIT-1 Aerial Snow Sensor
ETI (Environmental Technology Inc.) General Purpose Snow Sensor used with any APS or EUR series control panel
ETI (Environmental Tech.)
ETI11351
GIT-1 Gutter Ice Sensor
ETI (Environmental Technology Inc.) P/N 11351 - Gutter Mounted Ice Sensor. Automatic Gutter Deicing Controls Operating Costs with APS-3C or APS-4C Control Panel
ETI (Environmental Tech.)
ETI21358
RCU-4 Remote Control Unit
ETI (Environmental Technology Inc.) Flush or surface mount remote control & indication of Snow/Ice Melting Controllers (for use w/ GF Pro,APS-4C,SC-40C)
ETI (Environmental Tech.)
ETI22477
SC-40C Satellite Contactor 208-240V
ETI (Environmental Technology Inc.) Snow/Ice Melting Satellite Contactor. Modular Snow/Ice Heater Control System - NEMA3R - modular control system - GFEP built in-208-240v 3phase-50 amp contacts
ETI (Environmental Tech.)
ETI22480
SC-40C Satellite Contactor 277/480V 3ph
ETI (Environmental Technology Inc.) Snow/Ice Melting Satellite Contactor. Modular Snow/Ice Heater Control System - U-L/CSA P/N 22480
ETI (Environmental Tech.)
ETI22478
SC-40C Satellite Contactor 277v 1ph
ETI (Environmental Technology Inc.) Snow/Ice Melting Satellite Contactor. Modular Snow/Ice Heater Control System -277v-1ph-UL-csa listed
ETI (Environmental Tech.)
ETI22481
SC-40C Satellite Contactor, 600 VAC
ETI (Environmental Technology Inc.) Snow/Ice Melting Satellite Contactor. Modular Snow/Ice Heater Control System - Three Phase, U-L / CSA
ETI (Environmental Tech.)