Single phase manual starters
Type MSSP
Starters
IEC & NEMA
Single phase
Enclosed starters
Manual starters
3
MSSP
Starting and overload protection of small
1Ø AC/DC motors used on the following:
• Unit heater stokers
• Refrigeration compressors
• Fans
• Pumps
MSSP manual switches consist of a snap
switch combined with a thermal overload
device operating on the solder-ratchet
principle. The switch is designed to prevent being held closed under a sustained
motor overload. To reset the overload
mechanism, the switch lever is moved
to the OFF position. The motor can be
restarted by pushing the switch lever to the
ON position. Applications include compressors, fans and pumps.
Standards compliance and certifications
• UL Listed — Enclosed Products (File No
E137861; Guide No. NLRV)
• UL – Open Style
• Products (File No. E137861; Guide No.
NLRV2)
• CSA Certied LR 1234
• American Bureau of Shipping
• CE Marked (Per 60947)
Product Selection
Your order must include:
• Cat. No. of the switch
• Cat. No. of the heater element(s)
• If required, Cat. No. of any accessories.
Type MSSP
Low Voltage Products & Systems 3.49
ABB Inc. • 888-385-1221 • www.abb.us/lowvoltage 1SXU000023C0202 Rev. A
Single phase manual starters
Starters
IEC & NEMA
Single phase
manual starters
Enclosed starters
Single phase manual starters
Type MSSP
3
MSSP1-T2P
MSSP-T2P
Ratings
Single pole — 1 HP 115...230V AC, 1 HP 277V AC, Open Type without Enclosure or Type 1 General Purpose Enclo-
sure
Two pole — 1 Hp 115...230V AC, 1 HP 277 AC, Open Type without enclosure or Type 1 General Purpose Enclosure,
3/4 HP 115...230V DC
Open type without
enclosure
Description
Switch only
Toggle type
Key type 2 pole MSSP-K2 MSSP1-K2 MSSP-K2S
Lever type 1 pole MSSP-L1 MSSP1-L1 —
Switch with neon pilot light (115 or 230V)
Toggle type
Key type 2 pole MSSP-K2P MSSP1-K2P MSSP-K2PS
Switch and “hand-off-auto” selector switch (for use on AC only)
Toggle type 2 pole — MSSP1-T2H MSSP-T2SH
Switch with neon pilot light and “hand-off-auto” selector switch (115 or 230V AC only)
Toggle type 2 pole — MSSP1-T2HP MSSP-T2SHP
Key type 2 pole — MSSP1-K2HP —
Two switch units in one enclosure
Toggle type 2 pole — MSSP1-T2T2 —
Two switch units in one enclosure neon pilot light on both units (115 or 230V)
Toggle type 2 pole — MSSP1-T2PT2P MSSP-T2PT2P
Two speed switch
Toggle type 2 pole — MSSP1-22 —
1 pole MSSP-T1 MSSP1-T1 MSSP-T1S
2 pole MSSP-T2 MSSP1-T2 MSSP-T2S
1 pole MSSP-T1P MSSP1-T1P MSSP-T1PS
2 pole MSSP-T2P MSSP1-T2P MSSP-T2PS
- includes legend plate
Catalog
number
Type 1 General pur-
pose enclosure
- surface mount
Catalog
number
Type 1 General
purpose enclosure
- ush mounting
includes ush
plate but not switch
box
Catalog
number
Two speed switch with neon pilot lights (115 or 230V)
Toggle type 2 pole — MSSP1-22P MSSP-22P
Accessories
Description
Pilot light replacement bulb incandescent
MSSP-PL
MSSP-LA
Note: Pilot lights as used on MSSP switches indicate whether the motor is running only if
the switch is used to control the motor directly. If a thermostat, pressure switch, or some
other pilot device controls the operation of the motor, the light on the MMSP switch merely
indicates whether the power is ON or OFF
Locking attachment (for toggle operated only) MSSP-LA
3.50 Low Voltage Products & Systems
1SXU000023C0202 Rev. A ABB Inc. • 888-385-1221 • www.abb.us/lowvoltage
Catalog
number
MSSP-PL