OPTIONAL COMPONENTS FOR WIRING

S

REPAIR SWITCHES INSIDE SWITCHBOARD

• Power ON/OFF switch per each fan (black handle)
• The selector switch can be locked in the OFF position
• Protection class IP55
• Factory fitted and wired

O

REPAIR SWITCHES INSTALLED CLOSE TO THE FAN

• Power ON/OFF switch per each fan (black handle)
• The selector switch can be locked in the OFF position
• Protection class IP65
• Factory fitted and wired

M

MOTOR PROTECTION UNITS WITH THERMOCONTACTS

Generalities:
The motor protection units type S-DT16(E) are specifically designed for the start-up and the protection of 3-phase motors with integral thermocontacts. The integral line protection is assured by a thermal over-current sensor and a magnetic short circuit releasing element. The thermocontact switches automatically OFF in case of motor overheating.

Technical features:
• Line voltage 60 .. 500 V (+6%), 50/60 Hz. Applicable from 60 V when voltage control is in use
• Max. line fuse: 80 A (Ue 415 V + 5 %) / 63 A (Ue 440 V .. 500 V + 6 %)
• Max. rated current of motors: 16A
• Setting range over-temperature sensor: 10 .. 16 A
• Rated Short Circuit Breaking Capacity (IEC 60947-2, EN 60947-2, VDE 0660-101): 6 kA (Ue < 400 V + 5 %) / 3.5 kA (Ue = 415 V .. 440 V) / 2.5 kA (Ue 500 V + 6 %)
• Max. adjustable line cross section: 6 mm2 (auxiliary contact: 2,5 mm2)
• Limit ambient temperatures: -25°C / +55°C
• Protection class IP55 or version IP20 for built in

Mm

MOTOR PROTECTION UNITS WITH THERMOCONTACTS (SINGLE-PHASE FAN MOTORS)

Generalities:
The motor protection units type S-DT10(E) are specifically designed for the start-up and the protection of single-phase motors with integral thermocontacts. The thermocontact switches automatically OFF in case of motor overheating.

WARNING!: thermal bi-metal relays cannot be adjusted to the nominal current of the motors.

Technical features:
• Power supply: 1+N~ 230V (from 60V when voltage control is in use)
• Max. fuse: 10A
• Min. rated current of motors: 0,4A
• Max. rated current of motors: 10A
• Max. adjustable line cross section: 6 mm2 (auxiliary contact: 2,5 mm2)
• Admitted ambient temperatures: -25°C / +55°C
• Protection class IP55 or version IP20 for built in

DPWS

DUAL POWER SWITCH

• Automatically switches between two power supplies
• Lockable switch
• Protection class IP55
• Factory fitted and wired

ATTENTION:
The power supply must provide for the neutral electrical conductor

REFRION S.r.l. Vicolo Malvis, 1 - 33030 Flumignano di Talmassons (UD) - P.IVA 03094850231

DRY COOLER | GAMMA DRY COOLER